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L&F Technical Manual
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Tel: 0044 (0) 1302 745838 Fax: 0044 (0)1302 745839 E-mail: [email protected] web: www.liftingandfixing.co.uk
1
PRODUCT GUIDE AND
PRECAST TECHNICAL MANUAL
The professional choice for all your precast
concrete anchors and accessories
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2
LFS Product and Technical Manual
Contents
Page 3-4
Page 5-22
Page 23—41
Page 46—62
Page 63
Precast Concrete Lifting Design
Capstan Transport Anchor Systems
Threaded Lifting Systems
Spread Anchor System
Plastic Accessories
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3
Precast Concrete Lifting Design
The selection of lifting devices should be carefully made dependant on the type of lift or lifts that the unit will be subject to once manufactured. It is vitally important to ensure both safe lifting and that no damage to the
concrete occurs. When assessing the lifting of a unit the following factors must be considered.
The Weight of the Unit
The dead weight of a normal precast unit should be calculated using a concrete density of 2500kN/m2. The theoretical weight can be calculated either mathematically via the dimensions of the unit or through design packages. The adhesion to the mould must also be included in the calculation of forces dependant on the type
of mould that the unit is cast in. The following can be used as a guide:
Oiled steel mould = 1kN/m2
Varnished timber mould = 2kn/m2
Rough timber mould = 3kn/m2
The value of adhesion to the mould is calculated by multiplying the area of the concrete in contact with the
mould by the adhesion factor = Area x Mould Adhesion Factor
Double T Beam should be calculated using 2 x deadweight and Coffered units should be 4 x deadweight.
Dynamic Loads
These should be calculated in most lifts of precast units, they are controlled by both the velocity and quality
of lifting equipment and the terrain being transported across.
The following factors should be used:
Demoulding = x 1.1
Turning = x 1.3
Site Transportation = x 1.5 (With a stationary crane)
Site Transportation = x 1.65 (Over even ground)
These are based on using overhead or static cranes at speeds of <=90m/min. For rough ground or when the site
installation details are not known, always use a factor of Dynamic Load ≥ x 2.
The true mass of a precast unit for anchor specification is worked out as follows:
(Demoulding) Mass = (Deadweight +Adhesion Factor) x Dynamic Load
(Transportation) Mass = Deadweight x Dynamic Load
Sling Angle
The angle is dependant on the length of chains / cables that are used to lift the unit. The shorter the chains the greater the tensile load becomes on each anchor point. The following table show the factors by which the
pull factor should be calculated.
Angle β Pull Factor (z)
0º 1.00
15º 1.01
30 1.04
45º 1.08
60 1.16
90º 1.41
(Consult LFS for angles above 90º)
z
z
β
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4
Calculation of Anchor Loads
It is imperative to ensure that the load is distributed as evenly as possible
when deciding on the number of anchors and lift design.
Thin walled panels and beams should be lifted and turned with two anchors either with angled chains (1) or a spreader beam (2). This ensures even load distribution across both anchors providing the anchors are set out symmetrically either side of the centre of gravity. Please ensure that for
turning units that the correct extra reinforcement is observed.
For slab type units it is always advisable to use four anchors and a spreader beam (3) to ensure even weight distribution. It is not possible to calculate anchor loads for four anchors in panels as the exact distribution of load cannot be guaranteed (4) . Where the unit necessitates such a lift it is essential to use an equalising device (5) that will distribute loads evenly across all four anchors. The use of such a system must not only be available at all areas that the unit is lifted, but also used only by trained and experienced persons. If any details of any part of the lift is not be available
then it should be taken that two anchors will be load bearing.
A three point lift as show in (6) will always provide an even distribution of load providing the anchors are spaced evenly and correctly around the
centre of gravity.
All demoulding should take place with a minimum concrete strength of 15N/mm2 and ensuring that any load reduction factors are taken into account. The safe working loads of all anchors are a minimum of three
times and two times for the concrete.
Anchor Loading
To establish the actual anchor loadings, the following calculations are used:
Demoulding
Force / Anchor = (Dead Weight + Adhesion) x Dynamic Load x Pull Factor
No. Anchors
Transportation
Force / Anchor = Dead Weight x Dynamic Load x Pull Factor
No. Anchors
Example – 5m x 1m x 1m Beam. Area = 5m2 Deadweight = 12500kg
Factory - Oiled steel mould, β = 15º, 2No. Anchors, Overhead Crane Only
Site Lift - β = 30º with Static Crane only
Demoulding = 12500kg + (5m x 1kN/m2) x 1.1 x 1.04 = 7436kg per Anchor
2
Transportation = 12500kg x 1.5 x 1.04 = 9750kg per Anchor
2
It is essential that the details in this literature are made available to all production staff and that they are aware of and understand the
installation instructions and safety regulations.
LFS offer a full technical support service including design calculations and
on site pullout testing. Please contact us for further details.
(3) 4No. Load
Bearing Anchors
β
z
z
z z
(4) 2No. Load
Bearing Anchors
β z z
(5) 4No. Load
Bearing Anchors
z z
z
z
β
(6) 3No. Load
Bearing Anchors
120º
β z
z
z
(2) 2No. Load
Bearing Anchors
z
z
(1) 2No. Load
Bearing Anchors
z z
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5
Capstan Transport Anchor System
The Capstan Transport Anchor system is a simple and effective system for lifting most types of precast concrete
unit. The anchors are forged from high grade steel and, provided the anchor is specified and installed
correctly, provides safe and secure lifting, turning and transportation of units. Anchors are available in black,
zinc plated, galvanised, 304 and 316 stainless steel
Each anchor is stamped on the head with the manufacturers identification and maximum load rating of the
anchor. Anchors are tested to a safety factor of at least three times their safe working load and 2.5 times
concrete failure when installed to the guidelines that follow. Lifting Shackles are proof loaded to twice their
safe working load and are supplied with a test certificate that is valid for six months from date of purchase.
Capstan Anchors are designed for demoulding, transport and site fixing. They should not be used for repeated
lifting applications.
Capstan Transport Anchor
1.3t—32.0t load groups and are
suitable for large units such as
staircases, slabs, wall units, beams
and pipes.
Capstan Eye Anchor
1.3t—32.0t load groups and use with a
reinforcement tail in thin walled units.
Sandwich Panel Anchor
1.3t—20.0t load groups and are
suitable for large sandwich panels
allowing vertical lifting.
Capstan Rod Anchor
2.5t—15.0t load groups and are suitable
for very thin precast units.
Double Head Capstan Anchor
1.3t—7.5t load groups and have
been developed for automatic
installation in concrete pipe
manufacture. These have also
proved very effective for
Hollowcore production.
Capstan Plate Anchor
2.5t—10.0t load groups with a
welded plate for production of
thin slabs and demoulding
horizontally cast wall panels.
Anchor Types
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6
Capstan Rubber Recess Former
1.3t—32.0t load groups and are for
attaching the anchor to the mould
before casting. The former creates
a void in the precast to accept the
Shackle and to allow lifting through
360o.
Capstan Fixing Screw
1.3t—32.0t load group and are for attaching
the former through the mould. The screw
holds the anchor tightly to the formwork
when fastened with a washer and nut.
Capstan Magnetic Recess Former
1.3t—10.0t load groups and are for
attaching the anchor to steel
moulds before casting. The former
creates a void in the precast to
accept the Shackle and to allow
lifting through 360o.
Capstan Steel Recess Former and
Grommet
1.3t—10.0t load groups and are for
attaching the anchor to steel moulds
before casting. The former creates a void
in the precast to accept the Shackle and
to allow lifting through 360o. This part
requires a hole in the mould through
which a fixing screw is inserted and
fastened with a washer and nut.
Capstan Transport Anchor System
Capstan Anchor Accessories
Double Head Capstan Magnetic Recess Former
1.3t—10.0t load groups and are for attaching the anchor to the mould. The
former creates a void in the precast to accept the Shackle and to allow lifting
through 360o. They are available with either three or six magnets dependant on
the adhesion required. A rubber version for use in wooden moulds or for quick
release floating applications such as hollow core flooring is also available.
Capstan Lifting Shackle
1.3t—32.0t load groups and are for lifting and turning concrete units with
corresponding anchors cast in. The shackle head surrounds the anchor and can rotate
through 360o. Only the correct shackle for the anchor load group will fit.
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7
Capstan Transport Anchor System
Anchor Use and Specification Considerations
The LFS range of Capstan Transport Anchors are a simple and effective system for lifting most types of precast
concrete units. The anchors are manufactured from high grade steel and, provided the anchor is specified and
installed correctly, provides safe and secure lifting.
The anchors are designed as a method of demoulding, transportation and installation of precast units and
should not be used for repeated lifting. All anchors are tested by an independent institution to at least three
times safe working load and are supplied with batch numbers and certification on request. All shackles are
individually proof loaded to twice safe working load and supplied complete with certification on delivery. All
load table data is based upon a safety factor of 2.5 to 1 against concrete failure.
Anchor Operation
The Capstan Transport Anchor works by the distribution of load into the concrete via the tapered foot as shown
below, this provides high load values with short embedments in the concrete. The forces can even be
transferred into thin walled panels and safely lifted with the correct reinforcement.
Load Direction
Load transfers into the concrete in a cone
pattern and will breakout in this manner if
overloaded
It is essential to specify the correct length of anchor relevant to
the unit being lifted and the compressive strength of the
concrete at the time of lifting. This is a very important
consideration as reduced anchor loadings are experienced in low
strengths .
Installation
The anchors are installed in the formwork using one of a variety
of recess formers. These hold the anchors securely during
concrete pouring and create a void in which the shackle fits
after removal and once the concrete has cured. The anchor and
the recess will only accept the corresponding shackle rendering
mismatching load groups impossible.
The anchors are available in various lengths for use dependant on the application required. In general, longer
anchors are to be used in thin panels or low strengths whereas short anchors are best in slabs and stronger
concrete.
It is essential that consideration is taken to ensure that the anchors are equally positioned around the centre of
gravity and that loads are distributed evenly between each anchor.
LFS offer a full technical support including calculations and on site pullout testing.
Please contact LFS for further details.
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8
Capstan Transport Anchor System
Installation Instructions for Panels and Beams
For vertical lifting of panels and beams the minimum edge distance required is as follows:
Edge Distance F = (Anchor Length A + Recess Depth E) x 3
These dimensions assume that the concrete is un-reinforced. Smaller edge distances are possible with suitable
reinforcement.
Walls and beams that contain only standard reinforcement shown overleaf should only be lifted at angles of
β ≤ 30o. If the loading on the anchors is reduced then the amount of reinforcement can be reduced.
F
A
E C
B
D
Load Group Length A
mm
Shank Dia.
B mm
Foot Dia. D
mm
Head Recess
Depth E mm
Edge Distance F
mm
1.3t 120 10 25 10 390
1.3t 240 10 25 10 390
2.5t 140 14 35 11 450
2.5t 170 14 35 11 450
5.0t 240 20 50 15 765
5.0t 340 20 50 15 765
5.0t 480 20 50 15 765
7.5t 300 24 60 15 945
7.5t 540 24 60 15 945
7.5t 680 24 60 15 945
10.0t 340 28 70 15 1100
10.0t 680 28 70 15 1100
15.0t 400 34 85 15 1250
20.0t 500 39 98 15 1550
20.0t 1000 39 98 15 1550
32.0t 700 50 130 23 2150
32.0t 1200 50 130 23 2150
Head Diameter
C mm
19
19
26
26
36
36
36
47
47
47
47
47
70
70
70
85
88
Anchor Dimensions and Edge Spacing Required
All other length variations have the same shank, foot and head dimensions. Special lengths are available to
order on request.
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9
Load Capacities for Angled Lifting in Panels and Slabs
The table below is the permissible loads for axial or angled lifting in panels or slabs using Capstan Transport
Shackles. The maximum angle of lift is β = 30o.
10kn = 1 tonne of force
z
z
β
A B
10mm Min.
The table below assumes no edge reinforce-
ment and the edge distances can be reduced
in reinforced concrete.
Other lengths of anchor are available.
Slabs should be designed to accommodate
lifting moments during transportation.
Main reinforcement is not required.
C
Load Direction
Load Group Length A mm Min. Unit
Thickness B mm Edge Distance C
mm Maximum Load
15N/mm2 Maximum Load
25N/mm4
1.3t
40 60 150 5 8
50 70 180 8 10
65 85 225 13 13
85 105 285 13 13
2.5t 85 106 288 20 25
5.0t
85 110 300 24 36
95 120 330 29 44
120 145 405 50 50
7.5t
100 125 345 32 46
120 145 405 50 67
140 165 465 68 75
165 190 540 75 75
10.0t
115 140 390 44 65
135 160 450 62 77
150 175 495 70 84
170 195 555 80 100
15.0t
140 165 465 68 88
165 190 540 78 111
200 225 645 113 150
20.0t 200 225 645 113 150
240 265 765 145 180
32.0t
200 225 699 127 171
250 283 819 180 210
280 313 909 220 240
2.5t 120 155 393 25 25
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10
Reinforcement Required for Axial Lifting
Minimum concrete strength = 15N/mm2
Load Group
Mesh Reinforcement Both Sides mm2/m
Insert Stirrup Edge Reinforcement Diameter mm
No. Diameter L1 mm
1.3t A142 Consult LFS
2.5t A142
5.0t A142 6 8 700 8
7.5t A252 6 10 1160 8
10.0t A252 6 10 1160 12
15.0t B503 8 10 1240 12
20.0t B503 8 10 1240 12
32.0t 2 x B503 8 12 1400 16
Please Note:
Where possible lifting angle should not exceed
30o.
Where mesh reinforcement is specified, an
equivalent amount of reinforcement steel or
smaller mesh with additional steel can be used.
Edge reinforcement steel should be 460 grade
1.3t and 2.5t anchors only require one layer of
mesh when minimum panel thickness is 60mm
15º Max.
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11
Load Group Length B
mm
Min. Unit Thickness
d mm
Maximum Load 15N/mm2
Maximum Load 20N/mm2
Maximum Load 25N/mm2
1.3t 120
60 13
13 13 70 13
80 13
2.5t 170
80 21 24
25 100 24 25
120 25
5.0t 240
100 43 49
50 120 50 50
140 50
7.5t 300
120 60 69
75 140 67 75
160 75
10.0t 340 140 100 100 100
15.0t 400
160 128 148
150 180 142 150
200 150
20.0t 500
160 166 191
200 180 182
200 200 199
220 200
32.0t 700
200 191 221 247
220 211 243 272
240 231 267 298
260 253 292
320 280 275 318
300 299 320
320 320
Load Capacities for Axial Lifting for Panels and Beams
10kn = 1 tonne of force
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12
Capstan Transport Anchor System
Reinforcement Required for Angled Lifting
Minimum concrete strength = 15N/mm2
Load
Group
Mesh Rein-forcement Both Sides
mm2/m
Diagonal Lift
Reinforcement Insert Stirrup
Edge Reinf.
Diameter mm Diameter
ds mm B mm L mm No. Diameter L1 mm a mm
1.3t 142 10 40 1900 8 10 680 100 10
2.5t 142 10 40 1900 8 10 680 100 10
5.0t 142 10 48 2100 8 10 940 125 12
7.5t 257 12 64 2100 8 10 1160 125 12
10.0t 257 16 140 2200 8 10 1160 125 12
15.0t 513 20 140 3900 8 10 1240 125 14
20.0t 513 20 140 3900 8 10 1240 125 16
32.0t 1026 25 175 4500 8 12 1400 125 16
Please Note:
Where possible lifting angle should not exceed 30o.
Where mesh reinforcement is specified, an equivalent
amount of reinforcement steel or smaller mesh with
additional steel can be used.
Edge reinforcement steel should be 460 grade
1.3t and 2.5t anchors only require one layer of mesh
when minimum panel thickness is 60mm
45º Max.
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13
Load Group Length B mm Min. Unit
Thickness d mm
Maximum Load
15N/mm2
Maximum Load
20N/mm3
Maximum Load
25N/mm4
1.3t 120 95 13 13 13
2.5t 170 100 25
25 25 120 25
5.0t 240
120 38 44 49
140 42 48
50 160 46 50
180 50
7.5t 300
140 42 48 54
160 47 54 60
180 52 60 67
200 59 69
75 220 66
75 240 71
260 75
10.0t 340
140 58 67 75
160 65 75 84
180 72 83 92
200 79 92
100
220 84 98
240 90
100 260 95
280 100
15.0t 400
160 79 91 102
180 88 102 113
200 97 112 125
220 107 124 138
240 118 136
150 260 129 149
280 141 150
300 150
20.0t 500
160 128 147 165
180 140 162 181
200 154 177 198
220 168 194
200 240 182
200 260 198
280 200
32.0t 700
200 147 170 190
220 167 187 209
240 178 206 230
260 195 225 251
280 212 245 247
300 230 266 297
320 249 288
320
340 269 311
360 290
320 380 312
400 320
Load Capacities for Angled Lifting for Panels and Beams
For angles greater than 30o please contact LFS. 10kn = 1 tonne of force
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14
Capstan Eye Anchor
The Capstan Eye Anchor is for use when the transfer of load is not possible through the foot of a standard
anchor. This is usually for thin reinforced units or lightweight concrete. Reduced bond stress may need to be
considered for lightweight concrete.
The re-bar tail must be in close contact to the bottom of the hole to prevent concrete breakout when lifting.
30o
I
J
A B
C
D
E
F
G
H
Load
Group
Length
A mm
Shank Dia.
B mm
Head Dia.
C mm
Foot Dia.
D mm
Re-Bar Hole
E mm
Anchor Embedment
F mm
Overall Embedment
G mm
Anchor Recess
H mm
1.3t 65 10 19 19 10 45 75 10
2.5t 90 14 26 27 13 64 101 11
5.0t 120 20 36 42 20 88 135 15
10.0t 180 28 47 57 25 136 195 15
20.0t 250 39 70 76 37 185 265 15
Load Group
Min. Unit Thickness
mm
Mesh Reinforcement
Each Side
Reinforcement Specification
Re-Bar Dia. J mm
Unbent Re-bar Length I mm
Concrete Compressive Strength
15N/mm2 25N/mm2 35N/mm2
1.3t 80 A142 8 900 700 550
2.5t 80 A142 10 1350 1050 850
5.0t 100 A252 12 1900 1500 1200
10.0t 140 A252 20 2650 2050 1700
20.0t 160 A252 28 3750 2950 2400
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15
Capstan Plate Anchor
The Capstan Plate Anchor is designed for reinforced concrete slabs too thin for a standard Capstan Anchor
which are lifted at right angles to its greatest dimension and for de-moulding panels.
The minimum panel thickness (J) is determined by the unit design by combining the anchor length, anchor head
recess and the specified cover. It is essential that not only the cover is observed but that the concrete can flow
freely under the base of the anchor to ensure corrosion resistance.
A
B
C
D x E
F
G
H
I
J A
Cover
J
L
Load
Group
Length
A mm
Shank Dia. B
mm
Head Dia. C
mm
Plate Size D x E x F
mm
Overall Embed-ment
G mm
Anchor Embed-ment
H mm
Anchor Recess
I mm
Reinforcement Bars Permissible
Loads kN
Dia. J mm Length K
mm
15N/
mm2
25N/
mm2
2.5t 55 14 26 70 x 70 x 6 66 29 11 Dia. 8 x 4 200 10 15
2.5t 120 14 26 70 x 70 x 6 131 94 11 Dia. 10 x 4 300 25 25
5.0t 55 20 36 90 x 80 x 8 70 23 15 Dia. 12 x 4 450 30 40
5.0t 65 20 36 90 x 80 x 8 80 33 15 Dia. 12 x 4 450 40 50
5.0t 110 20 36 90 x 80 x 8 125 78 15 Dia. 12 x 4 450 50 50
10.0t 115 28 47 90 x 90 x 10 130 71 15 Dia. 16 x 4 600 80 100
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16
Curved Capstan Transport Anchor
The Curved Capstan Transport Anchor is specifically designed for lifting, pitching and transporting sandwich
panels.
After installing the anchor head is positioned in the centroidal axis of the panel with the foot being central in
the load bearing layer which ensures a proper load transference. Spalling of the concrete during erection and
lifting is avoided with Curved Capstan Transport Anchors. A tilting table should be used to pitch units if
produced with only a front layer on top. Using connector pins close to the anchor is advisable.
These anchors should be used in conjunction with a spreader beam.
10kn = 1 tonne of force
A
B
Load Direction Load Direction
Load Group Length A mm Offset B mm Permissible
Load Kn
Min.Unit Thickness C
mm
1.3t 277 50 13 80
2.5t 268 50 25 100
5.0t 466 60 50 100
7.5t 664 70 75 120
10.0t 667 70 100 140
15.0t 825 70 150 180
20.0t 986 90 200 200
C
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17
Capstan Rod Anchor
The Capstan Rod Anchor is designed to pitch and lift very thin wall panels, reinforced girders or similar types of
unit as well as masonry wall units.
The anchor consists of a ribbed steel bar with a forged Capstan lifting head. The load is transferred into the
concrete by the ribs of the steel bar.
For special fabrications the bar can be bent in an offset manner to fit units such as sandwich panels.
10kn = 1 tonne of force
C
D
A
B
E F
G
Load
Group
Length
A mm
Total Embedment
B mm
Rod Embedment
C mm
Bar Diameter
D mm
Anchor Head
Dia. E mm
Minimum Panel
Thickness
F mm
Anchor Recess
G mm
Permissible
Load kN
Mesh Reinforcement Both Sides mm/
m2
2.5t 400 411 374 14 26 100 11 25 188
2.5t 520 531 494 14 26 100 11 25 188
5.0t 580 595 548 20 36 140 15 50 257
5.0t 900 915 868 20 36 140 15 50 257
7.5t 750 765 706 24 46 140 15 75 257
7.5t 1150 1165 1106 24 46 140 15 75 257
10.0t 870 870 885 28 46 160 15 100 257
10.0t 1300 1315 1256 28 46 160 15 100 257
15.0t 1080 1095 1015 34 69 200 15 150 257
15.0t 1550 1565 1485 34 69 200 15 150 257
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18
Double Head Capstan Transport Anchor
The Double Head Capstan Transport Anchor has been specifically developed for use in pipe production where
anchor installation is automated. This permits high volume production by eliminating the manual operation of
fixing anchors.
The second head of the anchor assists accurate positioning and ensures perpendicular installation as it sits
tightly in the hollow of the former.
This feature also benefits the production of high volume flooring where large amounts of anchors are installed
on a regular basis. The rubber former is hard wearing and has a thread which allows quick removal and cleaning
with no requirement to remove excess concrete in the void. This anchor is lifted with the same shackle as
standard anchors.
B
A C
Load Rating 1.3t 2.5t 4.0t 5.0t
Length (A) mm
40 85 95 95
50 120 170 100
65 - - 180
100 - - -
Head Diameter (B) mm 19 26 36 36
Shank Diameter (C) mm 10 14 18 20
Load Group Length (A) mm 25N/mm2 35N/mm2 45N/mm2
1.3t
40 0.7t 0.9t 1.0t
50 1.0t 1.0t 1.0t
65 1.3t 1.3t 1.3t
100 1.3t 1.3t 1.3t
120 1.3t 1.3t 1.3t
2.5 85 2.5.t 2.5.t 2.5.t
120 2.5.t 2.5.t 2.5.t
4.0t 95 4.0t 4.0t 4.0t
170 4.0t 4.0t 4.0t
5.0t
95 4.0t 5.0t 5.0t
100 4.0t 5.0t 5.0t
180 5.0t 5.0t 5.0t
Permissible Loads for Double Head Capstan Transport Anchor
The concrete strength is for the time of first lifting.
Recess Formers
There are steel, magnetic and rubber formers available for Double Head Anchors. The steel formers are
designed for welding to the mould and have a magnetic insert to keep the anchor in place when casting.
Magnetic formers are also steel and have magnets in the base to securely attach to the formwork.
Rubber formers work in the same manner but have a metric screw thread in the base to attach through wooden
formwork for quick removal from cured concrete with a floating application.
Magnetic Former The second head sits
flush with the base of
the former.
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19
Double Head Capstan Transport Anchor
Use with Hollowcore Flooring Manufacture
The Double Head Capstan Transport Anchor is a very effective method of demoulding, lifting and installation of
most types of Hollowcore flooring panels.
The anchors are installed in extruded or slip formed Hollowcore by collapsing the cores at the required lifting
points and back filling with a suitably wet mix of the same concrete to the top of the panel. Larger sizes of
cores may require the use of a Slab Cap or semi-dry mix inside the core either side of the lifting point. The
concrete should be compacted well without damaging the webs, taking care that the recess is completely
filled.
The anchor should be worked down in the poured concrete until the former is flush with the top of the panel
ensuring no possibility of air gaps and trowel around the former for a neat finish.
It is recommended that, where possible, demoulding Hollowcore should be carried out using clamps or ensuring
that the concrete is sufficiently cured to support the load required for the lift.
With most Hollowcore applications, the edge distances that are achievable are less than would be expected for
obtaining full lifting loads in unreinforced concrete. However, as the deadweight of the units are greatly
reduced by the cores or polystyrene, the loads on each anchor is reduced resulting in effective lifting with
relatively small edge distances.
Because there are large variations in the concrete mixes, reinforcement
strand patterns and lifting intentions, it is imperative to ensure that the
anchor and installation is correct for each application. LFS offer a
complete design and technical support service for customers wishing to
implement the Double Head Anchor system into their production. This
service includes load calculations, anchor specification, training and an
on-site service to test the load capabilities in concrete panels. Our test
unit has a 25.0t capacity for both proof and destructive loading of
anchors. This testing includes both initial set up and periodically
arranged visits to monitor the continuity of achievable loads. This test-
ing is backed up by a full report of results and technical support for
customers working in partnership with LFS.
Lifting with Double Head Anchors
The Double Head Anchor uses the same shackle as standard Capstan Anchors. LFS recommend that clients using
this system should fully convey the permitted lifting design to their customers, for example, many installations
are intended for final positioning only. It is imperative that the installation teams are fully aware of such
arrangements.
When all site lifting requires use of Double Head
Anchors, the use of a Safety Lifting Rig is
recommended. The rig is constructed as shown
opposite and is designed to offer complete
security with safety chains under the panels and
exact load distribution between each anchor by
use of an equalising plate.
Safety Lifting Rigs are designed for panels up to
10.0t and can be manufactured specific to
customer requirements. These are supplied with
test certificates and are available for both sale
and hire at daily and weekly rates.
Please contact LFS for all sale, hire and technical
information.
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20
Capstan Lifting Shackles
The Capstan Shackle is the attachment used for lifting, turning and transportation of concrete units with the
corresponding anchors cast in. This is a manually operated device which is available in 1.3t—32.0t load groups.
Each shackle is proof loaded to twice safe working load at a recognised independent test institution and
supplied certified and index numbered for traceability when supplied new. All health and safety regulations
and suitable risk assessments should be observed when using LFS lifting shackles and site lifting equipment.
Load Group Overall Length (mm) Crane Hole Width
(mm)
Crane Hole Height
(mm)
Anchor Aperture
(mm)
1.3t 188 40 68 11
2.5t 230 50 86 16
4.0t - 5.0t 283 70 88 21
7.5t - 10t 401 90 115 30
15.0t - 20.0t 506 140 135 41
32.0t 680 160 189 52
Using Capstan Lifting Shackles
Engaging
Select the correct shackle and place the head opening over the anchor
and lower the weighted lip down onto the concrete as show in Fig. 1.
The shackle will now be ready for use.
Lifting
Once the shackle is engaged the unit can be lifted. The direction of lip
must always be in the direction of the lift as this locks the shackle under
load. The shackle is suitable for axial / angled lifting, turning, pitching
and swivelling of units providing the anchors have been suitably
reinforced. Please observe the maximum lifting angles per the design
which should be supplied by the manufacturer or engineer.
Lift Direction
Lift Direction
Weighted lip
must always
be in the load
direction
Fig
Releasing
Once the lift has been completed and the load has been removed the
shackle can be released by moving the lip towards the handle. Always
ensure that the shackle is clear of the recess before withdrawing the
crane.
Maintenance
Shackles should be checked for damage prior to each lift and inspected
by a qualified engineer every six months and recorded appropriately.
The maximum life of a shackle under constant use is seven years
provided the limited dimensions are not exceeded. Any modifications or
repairs are strictly prohibited.
Load Group Max Aperture
Width (mm)
Min. Aperture
Thickness (mm)
1.3t 13 5.5
2.5t 18 6
4.0t - 5.0t 25 8
7.5t - 10t 32 12
15.0t - 20.0t 46 18
32.0t 58 24
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21
Capstan Recess Formers
The Capstan Anchor must be installed in the unit using the correct former for the anchor and application. This
will provide quick and secure installation and form a recess for the shackle. Only the correct former will fit the
anchor and the load group is marked on each one. The former can be used by floating in the concrete or by
bolting through the formwork or by magnets. The formers are available in recyclable rubber and steel in load
groups from 1.3t to 32.0t.
Rubber Formers
The rubber former is resistant to oil and retains its shape in temperatures up to 120 oC. The former is reusable
many times if correctly used and cleaned after each use. Mould oil should be applied to the former before the
anchor is inserted.
Short sided formers are also available and are for use when lifting thin panels.
Floated Installation
With this application the concrete is poured first and the anchor is installed once the fill level has been
achieved. The anchor is inserted into the concrete until the bottom of the former is touching the concrete
which should then be vibrated until the top is flush with the concrete. At its final position the anchor much be
perpendicular to the base of formwork. It is advisable to use a fixing screw and a wooden block to ensure the
former is tightly shut to prevent any concrete ingress.
Removal of Former
When the concrete has cured the former is simple to remove. If a fixing screw has been used, remove this first
and, with two pieces of reinforcement bar, use a scissors action to release the former from around the anchor
and lift the former clear. If there is any excess concrete in the recess this should be removed before lifting.
Installation with Fixing Screw
When installing through wooden formwork a fixing screw or nut is required. If the
sides of formwork can be removed in a horizontal direction then a fixing screw
can be used. When this is not possible then a separate fixing nut and screw is
required. These are available in all load groups.
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22
Steel Recess Formers
The Capstan Anchor can be installed in metal formwork by the use of a steel formers.
These is used where the lifting anchors are not accessible when casting. They are
available in load groups from 1.3t to 20.0t. All steel formers are zinc plated for
corrosion resistance.
Using Steel Formers
The former is first attached to the mould by either its thread or by welding. The
anchor is then placed in the centre of the former and the rubber sleeve put around
the shank and pushed into the void, holding it tightly in position. The former and
sleeve should be coated in mould oil before casting. When the unit is struck the
former remains on the mould with the anchor and sleeve coming away with the unit.
The sleeve should then be removed and cleaned for reuse.
When installing using steel formers, particularly when the anchors are horizontal to the formwork, provisions
should be made to ensure it remains fixed during pouring. This can be done by tying the anchor to the form-
work or by using spacers.
Magnetic Formers
The steel formers are also available with magnets installed in the base to allow the attachment of anchors at
any required point in a steel mould. These have either three or six magnets in the base and should be chosen
dependant on the adhesion required when casting. Larger units with a heavy concrete flow should use the
higher adhesion. The rubber sleeve should be used in the same manner as standard steel formers.
Anchor Load
(t) Adhesion (kp) Ø (mm)
Concrete
Cover (mm)
1.3 50 60 10
2.5 50 74 11
3.5 100 74 11
5.0 50 94 15
5.0 100 94 15
5.0 120 94 15
5.0 180 94 15
10.0 50 118 15
10.0 100 118 15
10.0 120 118 15
10.0 180 118 15
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23
Utility Anchors
The Utility Anchor is designed for reinforced or unreinforced concrete units and are especially useful for cover
slabs, pipes and culverts or any application where the construction site can benefit from an approved and
tested lifting anchor that can be used with a crane hook and no other special lifting device.
Benefits of Utility Anchors
• Economical alternative for de-mould, handling and installing precast units.
• Versatile system that can be used for most types of precast unit.
• Lifting capacity of up to 7500kg.
• Easy to install.
Utility Anchor Components
Fixing Screw Wet Setting Plate
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24
Utility Anchors
Installation Instructions for Precast Units
Placement of Utility Anchors
This can vary dependant on the structural shape of the units
and the manufactures or engineer’s preferences. Utility
Anchors are not designed for thin edge applications. Always
ensure that the minimum edge distances are maintained and
that lifting design takes into consideration the minimum
strengths as noted in the capacity chart along with any other
dynamic forces.
It is recommended that the formers should always be placed in
line with the load direction of lifting chains.
Typical Installations
Wet Setting
1) Assemble the anchor, former and
either a Fixing Screw or Wet
Setting Plate
2) If required, use grease or duct
tape for an extra seal for the
cavity in the former.
3) Work the assemble into the wet concrete until the top surface of the former is flush to the concrete.
Ensure that any air bubbles are removed before setting is complete.
Fixing Screw Setting
1) Assemble the anchor and former.
2) If required, use grease or duct tape for an extra seal for the cav-
ity in the former.
3) Drill a hole in the formwork at the installation point and attach
the assembly with the fixing screw and the thread cast into the
former.
4) Ensure that any air bubbles are removed before setting is
complete via vibrating poker or similar method.
Fixing Plate Setting
1) Assemble the anchor and former.
2) If required, use grease or duct tape to seal the cavity in the
former.
3) Screw or nail the fixing plate to the formwork at the installation
point and place the assembly on the pins and push firmly into
place.
4) Ensure that any air bubbles are removed before setting is
complete via vibrating poker or similar method.
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25
Utility Anchors
Installation Instructions for Precast Units
Product
Code A B C
Tension
SWL Kg
Shear SWL
Kg
Min Panel Thickness
mm
Min Edge Distance
mm
LF01UA08135 80 134 11 800 1300 102 160
LF01UA20095 95 152 11 1800 2500 114 190
LF01UA25120 120 181 11 2000 3000 140 240
LF01UA35170 170 238 11 2500 3500 203 340
LF01UA14080 80 135 17 1400 1800 102 160
LF01UA35095 95 173 17 3500 5000 114 190
LF01UA50120 120 188 17 5000 7000 140 240
LF01UA75170 170 254 17 7500 8500 203 340
Utility Anchor Former
Product Code C D E
UAF200 203 76 89
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26
Utility Anchors
Installation Instructions for Precast Units
Angled Lifting
The safe working load figures on Page 25 are based on straight chains providing a pure tension lift. For angled
lifting applications, please reduce the design lifting capacity by the figures quoted in the table below. Dynamic
factors for transport will also apply as detailed on Page 3 of this manual.
Sling Angle Load Factors
Sling Angle β 120o 105o 90o 75o 60o 45o 30o 15o
Load Factor 2 1.64 1.41 1.26 1.16 1.08 1.04 1.01
Adjusting Loads for Concrete Strength
The safe working loads detailed on Page 25 are based on a concrete compressive strength of 25N/mm2 and is
quoted for tensile applications. Please consult LFS for any special requirements in shear below this strength.
To convert the allowable load in tension for an unreinforced anchor from a concrete strength of 25N/mm2 to a
greater or lesser concrete strength, multiply the safe working load at 25N/mm2 by the applicable factor listed
below.
Concrete Strength Adjustment Factors
Increased Concrete Strength
30N/mm2 Multiply SWL by 1.13
35N/mm3 Multiply SWL by 1.19
Increased Concrete Strength
20N/mm2 Multiply SWL by 0.92
15N/mm3 Multiply SWL by 0.75
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27
Lifting Sockets and Inserts
Flat End and Cylindrical Lifting Sockets provide simple lifting and transporting for most kinds of precast concrete units, particularly when casting into thin concrete panels. Flat End Lifting Inserts are available in both high grade zinc plated carbon steel and 303 grade stainless with metric threads. Cylindrical Sockets are also available in both materials and also Rd and metric type threads. All installation instructions are based on a 2:1 concrete safety factor at a strength of 15N/mm2 and 3:1 for steel inserts and are tested for by a recognised institution. Flat End and Cylindrical Lifting Sockets can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site.
Plastic Stopper Caps are also available to protect threads from weathering.
Please contact LFS with any technical queries.
F
E
G
H
Cylindrical Lifting Sockets Flat End Lifting Sockets
Axial Load
Rating
Size (Thread x
Length A)
Overall Diameter
(B)
Rebar Hole
Size (C)
Usable Thread
Length (D) Load Rating
Size (Thread x
Length E)
Overall Diameter
(F)
Rebar Hole
Size (G)
Usable Thread
Length (H)
500kg M/Rd 12 x 40 15 8 22 500kg M12 x 60 15 10 22
500kg M/Rd 12 x 48 18 10 25 1200kg M16 x 80 21 13 27
1200kg M/Rd 16 x 58 21 13 27 1200kg M16 x 100 21 13 27
2000kg M/Rd 20 x 70 27 16 35 2000kg M20 x 95 27 16 35
2500kg M/Rd 24 x 80 31 17 43 2500kg M24 x 110 31 18 43
4000kg M/Rd 30 x 101 39 22 56 4000kg M30 x135 39 22 56
6300kg M/Rd 36 x 125 47 25 69 4000kg M30 x150 38 22 56
8000kg M/Rd 42 x 140 54 30 80 - - - -
12500kg M/Rd 52 x 170 72 40 97 - - - -
Anchor Spacing
The following should be observed for all anchor installations and should also have sufficient
reinforcement as detailed on the next page. C/L
A
B/2
B
A 3xA
B
B/2
Axial Load
Rating Size
Edge Distance
A mm
Edge Distance
B mm
500kg M/Rd 12 37 300
1200kg M/Rd 16 40 400
2000kg M/Rd 20 50 550
2500kg M/Rd 24 60 600
4000kg M/Rd 30 70 650
6300kg M/Rd 36 100 800
8000kg M/Rd 42 120 1000
12500kg M/Rd 52 138 1200
A
Plastic Stopper to
prevent concrete
ingress
D
C
B
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28
Lifting Sockets and Inserts
Axial Lifting
All Sockets and Inserts must be reinforced for lifting with BSt500s reinforcement bar as per the table and sketches below. Reinforcement around the anchor can be in the form two layers of mesh or a re-bar cage befitting the unit as specified by the design engineer. The socket reinforcement can be in the form of a 60º angled bar (1) or with parallel ‘U’ bars (2). For slab type units the reinforcement can be cranked down from the ‘U’ bar to fit the thickness of the panel (3), straight bars must not be used and extra bars must be laid
across the flats of the bar. Mesh reinforcement is essential.
Axial Load
Rating Size
Leg Length
(L1) mm
Leg Length
(L2) mm
Bar Diameter
(BD) mm
Internal Diameter
(ID1) mm
Min. Mesh Reinforcement
(Two Layers)
500kg M/Rd 12 230 190 6 24 Q131
1200kg M/Rd 16 320 280 10 40 Q131
2000kg M/Rd 20 440 380 12 48 Q131
2500kg M/Rd 24 475 410 12 56 Q188
4000kg M/Rd 30 650 570 16 64 Q188
6300kg M/Rd 36 820 720 20 140 Q188
8000kg M/Rd 42 850 730 25 175 Q188
12500kg M/Rd 52 1200 1020 25 196 Q188
60º
L1
BD ID1
(1)
(3)
L3
For angled lifts it is essential to reinforce the socket to ensure the load is distributed into the concrete unit, for angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel as in (5) with a re-bar hanger as detailed in (3). If this pattern is used straight bars should be laid over the
cranked bars at right angles. The axial pull reinforcement must be in contact with the base of the socket (6).
Axial Load
Rating Size
Leg Length
(L3) mm
Internal Diameter
(ID2)
Bar Diameter
(BDH) mm
500kg M/Rd 12 150 24 6
1200kg M/Rd 16 200 32 10
2000kg M/Rd 20 300 32 12
2500kg M/Rd 24 300 40 14
4000kg M/Rd 30 400 48 16
6300kg M/Rd 36 550 56 20
8000kg M/Rd 42 600 64 25
12500kg M/Rd 52 750 140 28
(5)
20º
10mm B β
(6)
(2)
ID1
BD
L2
30º
ID2
BDH L3
(4)
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29
Lifting Sockets and Inserts
Pitching / Turning
Lifting Sockets and Inserts are designed to be used in thin panel applications for turning through 90º from horizontal to upright. All Sockets and Inserts must be reinforced for lifting with BSt500s reinforcement bar as
per the table and must include the extra reinforcement as detailed below.
Axial Load
Rating Size
Leg Length
(L1) mm
Leg Length
(L2) mm
Bar Diameter
(BD1) mm
Bar Diameter
(BD2) mm
Internal Diameter
(ID1) mm
Internal Diameter
(ID2) mm
Height
(h) mm
500kg M/Rd 12 270 280 6 8 24 24 35
1200kg M/Rd 16 350 400 8 12 32 32 49
2000kg M/Rd 20 500 500 10 14 40 40 64
2500kg M/Rd 24 520 560 12 14 48 48 75
4000kg M/Rd 30 580 590 12 16 48 48 92
6300kg M/Rd 36 700 700 14 16 56 56 118
8000kg M/Rd 42 850 860 16 20 64 64 143
12500kg M/Rd 52 950 1000 20 20 140 140 174
Lift Direction
BD2
BD1
ID1
15º
ID2
L2
H
L1
For turning or erecting units through 90º as detailed below, only half the weight of the unit is being lifted and therefore there is no reduction in the safe working load of the anchor and the same permissible loads and standard sling angle reduction factors apply. However, for lifting at these angles the permissible load per anchor is half the axial load rating. Sling angle factors apply to the chains in the same manner as axial lifting.
Combination Lifting Loops or Swivel Eyes should always be used for turning or pitching units.
z
z
β
Load Direction
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30
Wavy Tail Lifting Anchors
Wavy Tail Anchors are a quick to install and versatile anchor for lifting most types of precast units. The
anchor can be used to lift at compressive strengths of 15N/mm2 and above without any further reinforcement providing the unit has sufficient BSt 500 mesh or re-bar cage befitting the unit as specified by the design engineer. The body of the insert is available in high grade carbon steel with either yellow zinc plated for Rd threads or white zinc plated for metric threads. They are available with 12mm to 52mm threads with the re-
bar tail swaged to the socket. Stainless Steel sockets and re-bar tails are available to special order.
All installation instructions are based on a 2:1 concrete safety factor at a strength of 15N/mm2 and 3:1 for
steel inserts and are tested by a recognised institution.
Wavy Tails can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps are also available to protect threads from weathering. There are two standard lengths of rebar tail available, both anchors are designed for axial and angled lifts of β ≤ 60º (1) and the long anchors also permit the turning of units with the correct
reinforcement. Please contact LFS with any technical queries
D
A
B
C
E
F
Axial Load
Rating Size Type
Length A
(mm)
Socket
Length (B)
Usable Thread
Length (C)
Overall Diameter
(D) mm
Wave Diameter
(E) mm
Bar O/D
(F) mm
500kg M/Rd12 Short 108 40 22 15 20 8
Long 137 40 22 15 20 8
1200kg M/Rd16 Short 167 58 27 21 30 12
Long 216 58 27 21 30 12
2000kg M/Rd20 Short 187 70 35 27 35 16
Long 257 70 35 27 35 16
2500kg M/Rd24 Short 240 80 43 32 40 16
Long 360 80 43 32 40 16
4000kg M/Rd30 Short 300 101 56 38 50 20
Long 450 101 56 38 50 20
6300kg M/Rd36 Short 380 110 69 48 62 25
Long 570 110 69 48 62 25
8000kg M/Rd42 Short 450 140 80 54 70 28
Long 620 140 80 54 70 28
12500kg M/Rd52 Short - - - - - -
Long 880 170 100 70 80 28
Installation – Long Wavy Tails
To ensure a safe lift, the following edge distances and mesh requirements must be observed.
Axial Load
Rating Size
Edge Distance
(A) mm
Edge Distance
(B) mm
Anchor Spacing
(C) mm
Min. Mesh
Req.
500kg M/Rd 12 37 150 300 Q131
1200kg M/Rd 16 40 200 400 Q131
2000kg M/Rd 20 50 275 550 Q131
2500kg M/Rd 24 60 300 600 Q188
4000kg M/Rd 30 70 325 650 Q188
6300kg M/Rd 36 100 400 800 Q188
8000kg M/Rd 42 120 500 1000 Q188
12500kg M/Rd 52 140 600 1200 Q188
C/L
A
C
B
β
(1)
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31
Installation – Long Wavy Tails
For angled lifts it is essential to reinforce the socket to ensure the load is distributed into the concrete unit, for angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel as in (1). The reinforcement hanger (2) should be to the specifications in the table below and must be reinforced with BSt500s reinforcement bar. All standard sling angle reduction factors apply up to a maximum
of β = 30º (1).
Axial Load Rating Size Hanger Diameter
(BDH) mm (2) Leg Length (H) mm (2)
Internal Diameter
(ID) mm (2)
500kg M/Rd 12 6 150 24
1200kg M/Rd 16 8 200 32
2000kg M/Rd 20 8 300 32
2500kg M/Rd 24 10 300 40
4000kg M/Rd 30 12 400 48
6300kg M/Rd 36 14 550 56
8000kg M/Rd 42 16 600 64
12500kg M/Rd 52 20 750 140
β
20º
(1)
10mm
30º
ID
BDH
H
Pitching / Turning
Long Wavy Tails can be used in thin panel applications for turning through 90º from horizontal to upright.
Anchors must be reinforced for lifting with BSt500s reinforcement bar hangers as per the table below.
BD2
BD1
ID1
15º
ID2
L2
L1
H
Axial Load
Rating Size
Leg Length
(L1) mm
Leg Length
(L2) mm
Bar Diameter
(BD1) mm
Bar Diameter
(BD2) mm
Internal Diameter (ID1)
mm
Internal Diameter (ID2)
mm Height (h) mm
500kg M/Rd 12 270 280 6 8 24 24 35
1200kg M/Rd 16 320 400 8 12 32 32 49
2000kg M/Rd 20 490 490 10 12 40 40 64
2500kg M/Rd 24 520 550 12 14 48 48 75
4000kg M/Rd 30 570 580 12 16 48 48 92
6300kg M/Rd 36 690 700 14 16 56 56 118
8000kg M/Rd 42 830 850 16 20 64 64 143
12500kg M/Rd 52 930 1000 20 20 140 140 174
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32
Pitching / Turning (Cont…)
For turning units through 90º, as detailed below, only half the weight of the unit is being lifted and therefore there is no reduction in the safe working load of the anchor. The same permissible loads and standard sling angle reduction factors apply. However, for lifting at these angles the permissible load per anchor is half the
axial load rating. Sling angle factors apply to the chains in the same manner as axial lifting.
z
z
β
Installation - Short Waved Anchors
For angled lifts is it is essential to reinforce the socket to ensure the load is distributed into the concrete unit, for angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel in (1). The reinforcement hanger (2) should be to the specifications in the table below and must be reinforced with BSt500s reinforcement bar. All standard sling angle reduction factors apply up to a maximum
of β = 30º (1).
Axial Load
Rating Size
Edge Distance
(A) mm
Edge Distance
(B) mm
Anchor Spacing (C)
mm
Min. Panel
Depth (D) mm
Min. Mesh
Req.
Hanger Diameter
(BDH)
mm (2)
Leg Length (H)
mm (2)
Internal Diameter (ID)
mm (2)
500kg M/Rd 12 95 100 200 125 Q131 6 150 24
1200kg M/Rd 16 135 140 260 190 Q131 8 200 32
2000kg M/Rd 20 170 170 350 215 Q131 8 300 32
2500kg M/Rd 24 220 220 440 270 Q188 10 300 40
4000kg M/Rd 30 275 275 550 335 Q188 12 400 48
6300kg M/Rd 36 300 300 600 420 Q188 14 550 56
8000kg M/Rd 42 400 400 800 490 Q188 16 600 64
B
C
A
D 30º
ID
BDH
H
(2)
β
20º
(1)
10mm
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33
LFS Stab Anchor
LFS Stab Anchors are especially suitable for installation in slender concrete units with thin walls such as garages, transformer stations, shaft rings etc. The anchor can be used to lift at compressive strengths of 15N/mm2 and above without any further reinforcement providing the unit has a sufficient BSt500 mesh or re-bar cage befitting the unit as specified by the design engineer. The body of the insert is available in either yellow zinc plated for Rd threads or clear zinc plated for metric threads and is supplied with 12mm to 52mm threads with the re-bar tail swaged to the socket. Stainless Steel sockets and re-bar tails are available to special order. All installation instructions are based on a 2:1 concrete safety factor
at a strength of 15N/mm2 and 3:1 for steel inserts and are tested for by a recognised institution.
Stab Anchors can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps are also available to protect threads from weathering. The standard length of rebar tails available are detailed below, however special lengths and bent bars are available on request. The anchors designed are for axial and angled lifts of
β ≤ 60º (1) and the turning of units with the correct reinforcement.
Please contact LFS with any technical queries.
Axial Load Rating Size
Overall Length (A)
mm
Socket Length
(B) mm
Usable Thread
(C) mm
Overall Diameter (D)
mm
Re-Bar Diameter (F)
mm
500kg M/Rd 12 190 40 22 16 8
1200kg M/Rd 16 250 58 27 21.5 12
2000kg M/Rd 20 350 70 35 27 16
2500kg M/Rd 24 400 80 43 32 16
4000kg M/Rd 30 500 101 56 38 20
4000kg M/Rd 30 900 101 56 38 20
6300kg M/Rd 36 650 110 69 48 25
6300kg M/Rd 36 900 110 69 48 25
8000kg M/Rd 42 800 140 80 54 28
12500kg M/Rd 52 900 170 90 70 32
A
F
D
B
C
Installation – Stab Anchors
To ensure a safe lift, the following edge distances and mesh requirements must be observed.
Axial Load
Rating Size
Edge Distance
(A) mm
Edge Distance
(B) mm
Anchor Spacing
(C) mm Min. Mesh Req.
500kg M/Rd 12 30 150 300 Q131
1200kg M/Rd 16 40 200 400 Q131
2000kg M/Rd 20 55 275 550 Q131
2500kg M/Rd 24 62.5 300 600 Q188
4000kg M/Rd 30 70 350 650 Q188
6300kg M/Rd 36 100 400 800 Q188
8000kg M/Rd 42 120 500 1000 Q188
12500kg M/Rd 52 140 600 1200 Q188
C/L
A C
B
β
(1)
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34
Installation – Stab Anchors (Cont…)
For angled lifts is it is essential to reinforce the socket to ensure the load is distributed into the concrete unit, for angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel as in (1). The reinforcement hanger (2) should be to the specifications in the table below and must be reinforced with BSt500s reinforcement bar. All standard sling angle reduction factors apply up to a maximum
of β = 30º (1).
Axial Load Rating Size Hanger Diameter (BDH) mm (2) Leg Length (H) mm (2) Internal Diameter (ID) mm (2)
500kg M/Rd 12 8 150 24
1200kg M/Rd 16 8 200 32
2000kg M/Rd 20 12 300 32
2500kg M/Rd 24 12 300 40
4000kg M/Rd 30 12 400 48
6300kg M/Rd 36 16 550 56
8000kg M/Rd 42 16 600 64
12500kg M/Rd 52 20 750 140
β
20º 10mm
(1)
30º
ID
BDH
H
Pitching / Turning
For turning units through 90º, as detailed below, only half the weight of the unit is being lifted and therefore there is no reduction in the safe working load of the anchor and the same permissible loads and standard sling angle reduction factors apply. However, for lifting at these angles the permissible load per anchor is
half the axial load rating. Sling angle factors apply to the chains in the same manner as axial lifting.
BD2
BD1
ID1
15º
ID2
L2
L1
H
z z
β
Axial Load
Rating Size
Leg Length
(L1) mm
Leg Length
(L2) mm
Bar Diameter
(BD1) mm
Bar Diameter
(BD1) mm
Internal Diameter
(ID1) mm
Internal Diameter (ID2)
mm Height (h) mm
500kg M/Rd 12 270 285 6 8 24 24 35
1200kg M/Rd 16 350 400 8 12 32 32 49
2000kg M/Rd 20 500 500 10 14 40 40 64
2500kg M/Rd 24 520 560 12 14 48 48 75
4000kg M/Rd 30 580 590 12 16 48 48 92
6300kg M/Rd 36 700 700 14 16 56 56 118
8000kg M/Rd 42 850 860 16 20 64 64 143
12500kg M/Rd 52 950 1000 20 20 140 140 174
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35
Ripped Foot Anchor
Ripped Foot Anchors are especially suitable for slab type panels or beams. The anchor can be used to lift at compressive strengths of 15N/mm2 and above without any further reinforcement providing the unit has sufficient BSt500 mesh or re-bar cage befitting the unit as specified by the design engineer. The body of the insert is available in either yellow galvanized for Rd threads or clear galvanized for metric threads. They are supplied with 12mm to 52mm threads and the re-bar tail is swaged to the socket. Stainless Steel sockets and re-bar tails are available to special order. All installation instructions are based on a 2:1 concrete safety
factor at a strength of 15N/mm2 and 3:1 for steel inserts and are tested for by a recognised institution.
Ripped Foot Anchors can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps are also available to protect threads from weathering. The standard lengths of rebar tails available are detailed below however special lengths and bent bars are available on request. The anchors designed are for axial and angled lifts of β ≤ 60º
(1) and the turning of units with the correct reinforcement.
Please contact LFS with any technical queries.
Axial Load Rating Size Overall Length
(A) mm
Socket Length
(B) mm
Usable Thread
(C) mm
Overall Diameter
(D) mm
Re-Bar Diameter
(E) mm
500kg M /Rd12 70
40 22 16 8 500kg M /Rd12 100
500kg M /Rd12 136
500kg M /Rd12 174
1200kg M /Rd16 70
58 27 21.5 12 1200kg M /Rd16 150
1200kg M /Rd16 195
1200kg M /Rd16 260
2000kg M /Rd20 90
70 35 27 16 2000kg M /Rd20 190
2000kg M /Rd20 235
2000kg M /Rd20 300
2500kg M /Rd24 105
80 43 32 20 2500kg M /Rd24 210
2500kg M /Rd24 260
2500kg M /Rd24 335
4000kg M /Rd30 125
101 56 38 20 4000kg M /Rd30 270
4000kg M /Rd30 390
4000kg M /Rd30 510
6300kg M /Rd36 330
110 69 48 25 6300kg M /Rd36 490
6300kg M /Rd36 640
8000kg M /Rd42 450
140 80 54 28 8000kg M /Rd42 590
8000kg M /Rd42 770
12500kg M /Rd52 730 170 90 70 28
12500kg M /Rd52 360
C/L
A C
B
β
(1) B C
D
A
E
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36
Installation - Ripped Foot Anchors
For angled lifts is it is essential to reinforce the socket to ensure the load is distributed into the concrete unit. For angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel in (1). The reinforcement hanger (2) should be to the specifications in the table below and must be reinforced with BSt500s reinforcement bar. All standard sling angle reduction factors apply up to a maximum
of β = 30º (1).
B
C
A D
30º
ID
BDH
(2) 20º 10
mm
β (1)
Pitching / Turning
For turning units through 90º, as detailed below, only half the weight of the unit is being lifted and therefore there is no reduction in the safe working load of the anchor and the same permissible loads and standard sling angle reduction factors apply. However, for lifting at these angles the permissible load per anchor is
half the axial load rating. Sling angle factors apply to the chains in the same manner as axial lifting.
Axial Load
Rating Size
Leg Length
(L1) mm
Leg Length
(L2) mm
Bar Diameter
(BD1) mm
Bar Diameter
(BD1) mm
Internal Diameter
(ID1) mm
Internal Di-ameter (ID2)
mm Height (h) mm
500kg M/Rd 12 270 285 6 8 24 24 35
1200kg M/Rd 16 350 400 8 12 32 32 49
2000kg M/Rd 20 500 500 10 14 40 40 64
2500kg M/Rd 24 520 560 12 14 48 48 75
4000kg M/Rd 30 580 590 12 16 48 48 92
6300kg M/Rd 36 700 700 14 16 56 56 118
8000kg M/Rd 42 850 860 16 20 64 64 143
12500kg M/Rd 52 950 1000 20 20 140 140 174
Axial Load
Rating Size
Edge Distance
(A) mm
Edge Distance
(B) mm
Anchor Spacing
(C) mm
Min. Mesh
Req.
Hanger Diameter
(BDH) mm (2)
Leg Length
(H) mm (2)
Internal Diameter
(ID) mm (2)
500kg M/Rd 12 30 200 300 Q131 8 150 24
1200kg M/Rd 16 40 250 400 Q131 8 200 32
2000kg M/Rd 20 45 300 550 Q188 12 300 32
2500kg M/Rd 24 50 350 600 Q188 12 300 40
4000kg M/Rd 30 60 400 650 Q211 12 400 48
6300kg M/Rd 36 100 450 800 Q211 16 550 56
8000kg M/Rd 42 120 500 1000 Q211 16 600 64
12500kg M/Rd 52 140 600 1200 Q211 20 750 140
BD2
BD1
ID1
15º
ID2
L2
L1
H
z z
β
Minimum thickness of precast unit:
D = Anchor Length + Cover to Anchor Foot + Specified Concrete Cover
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37
Hex Foot Anchor
Hex Foot Anchors are especially suitable for slab type panels. The anchor can be used to lift at compressive strengths of 15N/mm2 and above without any further reinforcement, providing the unit has sufficient BSt500 mesh or a re-bar cage befit-ting the unit as specified by the design engineer. The product is manufactured from a solid steel blank and provides both effective transmission of lifting forces and extremely high torque loads when used as a fixing socket . Stainless Steel sockets are available to special order. All installation instructions are based on a 2:1 concrete safety factor at a strength of 15N/mm2 and 3:1 for steel inserts and are tested by a
recognised institution.
Hex Foot Anchors can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps to protect threads from weathering are also available. The anchors designed are for axial and angled lifts of β ≤ 30º (1) and the turning of certain units with the correct reinforcement. Hex Foot Anchors can also be used in beams with
additional reinforcement.
Please contact LFS with any technical queries.
A
C
B
Axial Load Rating Size Length (A) mm Usable Thread (B) mm Overall Diameter (C) mm
500kg M/Rd 12 60 29 17
1200kg M/Rd 16 80 37 21
2000kg M/Rd 20 100 50 27
2500kg M/Rd 24 115 65 31
4000kg M/Rd 30 150 75 39
Installation - Hex Foot Anchors
For angled lifts it is essential to reinforce the socket to ensure the load is distributed into the concrete unit. For angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel as in (1). The reinforcement hanger (2) should be to the specifications in the table below and must be
BSt500s reinforcement bar. All standard sling angle reduction factors apply up to a maximum of β = 30º (1).
Axial Load
Rating Size
Edge Distance
(A) mm
Edge Distance
(B) mm
Anchor Spacing
(C) mm
Min. Mesh
Req.
Hanger Diameter
(BDH) mm (2)
Leg Length (H)
mm (2)
Internal Diameter (ID)
mm (2)
500kg M/Rd 12 105 200 300 Q131 8 150 24
1200kg M/Rd 16 120 260 400 Q131 8 200 32
2000kg M/Rd 20 190 350 550 Q188 12 300 32
2500kg M/Rd 24 210 440 600 Q188 12 300 40
4000kg M/Rd 30 250 400 650 Q211 12 400 48
30º
ID
BDH
H
(2)
20º 10mm
β (1)
B
C
A D
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38
Flat Steel Anchors
Flat Steel Anchor provide simple lifting and transporting for many kinds of precast concrete units, particularly when casting into thin concrete slabs. Flat Steel Anchors are available in both high grade zinc plated carbon steel and 304 Grade Stainless Steel with both Metric and Rd type threads. All installation instructions are based on a 2:1 concrete safety factor at strength of 15N/mm2 and 3:1 for steel inserts which are tested by a
recognised institution.
Flat Steel Anchors can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps are available to protect threads from
weathering. Please contact LFS with any technical queries
Axial Load
Rating
Thread
Size
Overall Height (A)
mm
Socket Height (B)
mm
Plate Width (C)
mm
Plate Width
(D) mm
Plate Thickness
(E) mm
Socket Diameter
(F) mm
500kg M/Rd 12 30 22 25 35 3 16
1200kg M/Rd 16 35 27 35 50 3 21
2000kg M/Rd 20 47 35 45 60 5 27
2500kg M/Rd 24 54 43 60 80 5 32
4000kg M/Rd 30 72 56 80 100 6 38
6300kg M/Rd 36 80 69 100 130 6 48
8000kg M/Rd 42 98 80 130 130 8 54
12500kg M/Rd 52 120 97 130 150 8 70
A
C
B
D
E
F
Installation Instructions
The following should be observed for all anchor installations and should also have the specific pattern of
reinforcement as detailed in (1) and dimensioned per the table below.
Axial Load
Rating Size
Edge Distance (A)
mm
Edge Distance (B)
mm
Anchor Spacing (D)
mm
Min. Panel Depth (D)
mm
Min. Mesh
Req.
Reinf. Dim.
(A)
Reinf. Dim.
(B)
Reinf. Dim.
(C)
Bar Diameter
(D)
500kg M/Rd 12 180 180 350 70 Q131 250 60 60 6
1200kg M/Rd 16 250 250 500 85 Q131 420 90 70 8
2000kg M/Rd 20 300 300 600 100 Q188 640 90 80 8
2500kg M/Rd 24 400 400 800 115 Q188 640 90 80 10
4000kg M/Rd 30 500 500 100 140 Q221 830 90 100 12
6300kg M/Rd 36 650 650 130 160 Q221 1140 140 120 14
8000kg M/Rd 42 650 650 130 175 Q513 1250 140 120 16
12500kg M/Rd 52 750 750 150 215 Q513 1530 140 150 20
The minimum panel thickness is determined by taking the conditions of use as a basis, according to DN 0145 Table 10, line 1 and section 13.2. For other applications and environmental conditions, the concrete cover must be increased and hence enlarging the panel thickness as shown in Fig. 3 (D). When making a recessed installation with the Plastic or Magnetic Nailing Plate (4) the minimum panel thickness must be increased by
the depth of the recess.
Important – Crossed bars (2) are required for M/Rd 24 threads and above and reinforcement should be wired
either side of the socket to ensure close contact with the plate for all sizes.
Recess
Concrete
Cover
(2)
30º
A
B
C (1)
D
B
C
D
A
(3)
(4)
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39
Angled Lifting
For angled lifts is it is essential to reinforce the socket to ensure the load is distributed into the concrete unit. For angles of greater than β = 12.5º the following reinforcement should be observed and installed in the panel as in (1). The reinforcement hanger (2) should be to the specifications in the table below and must be reinforced with BSt500s reinforcement bar. All standard sling angle reduction factors apply up to a maximum
of β = 30º.
Axial Load
Rating Size
Edge Distance
(A) mm
Edge Distance
(B) mm
Anchor Spacing
(C) mm Min. Mesh Req.
Hanger Diameter (BDH)
mm (2)
Leg Length (H)
mm (2)
Internal Diameter (ID)
mm (2)
500kg M/Rd 12 30 200 300 Q131 8 150 24
1200kg M/Rd 16 40 250 400 Q131 8 200 32
2000kg M/Rd 20 45 300 550 Q188 12 300 32
2500kg M/Rd 24 50 350 600 Q188 12 300 40
4000kg M/Rd 30 60 400 650 Q211 12 400 48
6300kg M/Rd 36 100 450 800 Q211 16 550 56
8000kg M/Rd 42 120 500 1000 Q211 16 600 64
12500kg M/Rd 52 140 600 1200 Q211 20 750 140
30º
ID
BDH
H
(2)
Position of
Reinforcement.
Close contact is
essential
β (1)
20º
Pitching / Turning
When lifting or turning in shear force it is essential to reinforce with mesh, crossed bars and angled lifting reinforcement bars as detailed below. The safe working load of the anchor in this pattern is half that of the
safe working load.
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40
Accessories for Threaded Inserts
When using the LFS Threaded Insert system they must be correctly fixed to the formwork to ensure they are
held firmly and in the correct position when pouring concrete.
Plastic Nailing Plates
For use with wooden formwork and are simply nailed to the mould in the
correct position and the anchor screwed on. For security when pouring, it is
advisable to tie the anchor into the mesh or re-bar cage. These are a short
term re-usable item and provide a cost effective solution. They are
available in M12 to M52 threads.
Steel Nailing Plates
For use with wooden formwork and are simply nailed to the mould in the
correct position and the anchor screwed on. For security when pouring, it is
advisable to tie the anchor into the mesh or re-bar cage. These should be
removed from the unit, and cleaned for re-use. They are available in M12 to
M52 threads.
Magnetic Nailing Plates
For use with steel formwork and are attached by magnetic adhesion to the
mould. The magnetic former is placed in the correct position and the anchor
screwed on. For security when pouring, it is advisable to tie the anchor into
the mesh or re-bar cage. These should be removed from the unit, and
cleaned for re-use. They are available in M12 to M52 threads.
Plastic Sealer Caps
These are used to protect threads from corrosion when units are being
stored. These are available in M12 to M52 threads.
The formers create a recess depths of 10mm for M12—M20 threads, 12mm for M24-M36 and 15mm for M42 and
M52. All metric threaded formers are compatible with Rd threaded inserts.
Removal Tool for Steel Formers
The steel formers are removed from the mould using a square headed tool.
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41
Lifting Loops
Lifting Loops are a cost effective method of lifting most types of precast concrete units with all types of
threaded lifting devices.
They are manufactured from high grade steel wire swaged onto a steel ferrule providing a strong and reliable
lifting device that can be re-used subject to being checked for damage prior to each lift.
Each loop is marked with the thread size, safe working load, manufacturer’s mark and an individual index
number which can be found on the test certificate supplied with each loop.
The loops are available in either Metric or Rd threads.
z z 90o
Axial Load Rating Size Length (A) mm Useable Thread (B) mm
500kg M/Rd 12 155 22
1200kg M/Rd 16 155 27
2000kg M/Rd 20 215 35
2500kg M/Rd 24 255 37
4000kg M/Rd 30 300 50
6300kg M/Rd 36 340 65
8000kg M/Rd 42 425 70
12500kg M/Rd 52 480 80
A
B
Instructions For Use
Prior to each loop being used to lift, it should be threaded fully into the socket until it bottoms out, this should be at least one and a half times the thread diameter. If dirt or
ingress prevent this then the threads should be cleaned and the loop re-inserted.
Loops can be used to lift at angles of up to β = 90°. Combination Lifting Loop or Swivel Eye should be used for pitching and turning applications. Using Lifting Loops at angles greater than β = 90° can cause damage at the ferrule and excess strain on the wires
causing breakages.
All loops must be replaced at the first sign of any broken strands, wire breakage, crushing, kinking, thread damage, corrosion, sharp bends or any other damage that could affect the strength or operation of the item. Lifting Loops should be assessed by a
competent person every six months and re-tested annually.
The radius of
the crane hook
must be at least
the diameter of
the wire rope.
Loops must not be used for
pitching and turning units
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42
Combination Lifting Loops
These are manufactured from high grade steel wire swaged onto a forged steel eye providing a strong and reliable lifting device that allows safe turning and erecting of precast units. The loops can be re-used subject to being checked for damage prior to each
lift.
Each loop is marked with the thread size, safe working load, manufacturer’s mark and an individual index number which can be found on the test certificate supplied with each
loop.
Combination Loops are available in either Metric or Rd threads with or without a centre
swage.
Axial Load Rating Size Length (A) mm Useable Thread (B) mm
500kg M/Rd 12 355 22
1200kg M/Rd 16 385 27
2000kg M/Rd 20 470 35
2500kg M/Rd 24 550 37
4000kg M/Rd 30 590 50
6300kg M/Rd 36 780 65
8000kg M/Rd 42 860 70
12500kg M/Rd 52 1080 80
A
Instructions For Use
Prior to each loop being used to lift it, should be threaded fully into the socket until the face of the eye is flush to the face of the concrete. If dirt or ingress prevent this then the
threads should be cleaned and the loop re-inserted.
Loops can be used to lift in axial loads and right angles for pitching / turning units.
All loops must be replaced at the first sign of any broken strands, wire breakage, crushing, kinking, thread damage, corrosion, sharp bends or any other damage that could affect the strength or operation of the item. Lifting Loops should be assessed by a compe-
tent person every six months and re-tested annually.
The radius of
the crane hook
must be at least
the diameter of
the wire rope.
The face of the eye must be flush with the concrete
Load Direction
Once the concrete units have been pitched to
an upright position Combination Lifting Loops
are suitable for axial and angled lifting
providing the correct reinforcement has been
installed and that the correct angle limits are
observed.
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43
Swivel Lifting Eyes
Swivel Lifting Eyes are a cost effective method of lifting most types of precast concrete units with all types of threaded lifting sockets. They are especially useful for pitching and turning units and for high volume lifting on site or in the factory where loops can wear out
quickly.
They are manufactured from high grade steel which provides a strong and reliable lifting device that can be re-used repeatedly subject to being checked for damage prior to each
lift.
Each eye is marked with the safe working load, manufacturer’s production marks, angle guides and an individual index number which can be found on the test certificate supplied
with each item. The eyes are available in either Metric or Rd threads.
A
B
C D
E
F
Spanner
Width
Thread
Size SWL
A
mm
B
mm
C
mm
D
mm
E
mm
F
mm
O
mm
Spanner Width
mm
M/Rd12 700kg 32 55 48 41 18 36.5 13 34
M/Rd16 1400kg 32 55 48 41 20 36.5 13 34
M/Rd20 2500kg 34 70 67 57 30 52 16 46
M/Rd24 4000kg 45 85 75 63 30 57 18 50
M/Rd30 6700kg 45 85 94.5 78 35 70 20 65
M/Rd36 10000kg 60 115 106 86 50 81 23 75
M/Rd42 12500kg 70 140 111 92 60 88 28 80
Instructions For Use
Prior to each Swivel Lifting Eye being used to lift it should be threaded fully into the socket until the face of the eye is flush to the face of the concrete and hand tightened with a spanner. If dirt or ingress prevent this
then the threads should be cleaned and the loop re-inserted.
Swivel Lifting Eyes can be used in axial loads and at angles of up to 90o for pitching / turning units. The base of
the eye rotates freely through 360o under load.
Swivel Lifting Eyes should be examined for damage before each lift, paying particular attention to the threads, crane hook eye, and general wear and tear. Wear on the ball bearings can be easily recognised by the
indication ring as shown in the diagram below, replace worn out eyes as soon as this is visible.
Swivel Eyes must be assessed by a competent person every six months and re-tested annually.
Replace Swivel Eyes when the wear
indicator ring is visible
Load Direction
Axial load
permitted
when turned
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44
A
B
Polypropylene Cast In Loops
LFS Polypropylene Cast In Loops are a cost effective method of lifting lightweight concrete units and provide a
crane hook attachment that can be cut off once used.
Product Details
These are produced from polypropylene rope with a swaged aluminium
ferrule to create a loop which is individually marked with the
appropriate load rating. These are designed for use for de-moulding,
transportation and fixing only and should not be used more than once
such cycle.
The loops are available in load ratings from 150kg to 1200kg and should
be selected according to the lifting design considerations detailed in
pages one and two of this catalogue.
These items can be used with concrete strengths above 15N/mm2 for
axial or angled lifts and for pitching at 20N/mm2 and above. These have
the advantage that the rope does not corrode and stain the concrete.
Installation
Cast In Loops should be installed in the direction of the load with the ferrule in the opposite direction. They
should be positioned around the centre of gravity in a manner that will give a balanced load making sure that
the minimum dimensions are observed as set out in the table below. It may be necessary to use reinforcement
bar for thin units and should be looped as shown below.
When lifting it is essential that the curvature of crane hook is at least the diameter of the loop.
Please contact LFS with any technical queries.
Direction of Load
Load Rating (kg)
Exposed Height A (mm)
Cast In Height B (mm)
Rope Dia. (mm) Edge Distance
C (mm) Edge Distance
D (mm)
Min Edge Distance E
(mm)
150 100 160 6 200 100 40
250 100 160 8 200 100 50
360 100 200 10 300 150 60
500 100 200 12 300 150 70
875 120 240 14 400 200 80
1200 120 240 16 450 225 100
For thin units reinforcement bar
should be used as shown above. C D
E
E
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45
Cast-In Concrete Lifting Loops
Cast-In Concrete Lifting Loops are a cost effective method of lifting many types of precast concrete units quickly and safely. They provide a quick installation when casting and can easily be cut off once in position and concealed. However, it should be noted that the
remaining ends can rust and hence stain if not properly concealed.
Providing the following reinforcement details are observed, no further reinforcement is required under normal circumstances. For any angles greater than β =60º, please contact Lifting and Fixing Solutions Ltd. The sling angle reduction factors do not apply to Cast-In Loops. All installation instructions are based on a 2.5:1 concrete safety factor at a
strength of 15N/mm2 and 3:1 for wire rope and are tested for by a recognised institution.
The Loops are manufactured from galvanised steel wire with identification tags showing the manufactures name and load rating. This product is not designed for repeated use and
should only be used for lifting from factory to site and final installation.
Loops should be selected correctly dependant on the size of the concrete unit, taking all lifting factors into account. Please contact Lifting and Fixing Solutions Ltd should
calculations be required.
Loops should be installed in the lift direction as follows. The swage should in opposites to the load with the exposed portion the correct height and the identification tag clear of the poured concrete. When setting the loops there should be 1/3 of the loop remaining proud
of the concrete. Anchors are also available in higher capacities up to 99.0t on request.
Installation Instructions
To ensure a safe lift, the following edge distances and mesh requirements must be observed.
Axial Load
Rating (kg)
Length (L)
mm
Wire Diameter
mm
Necessary Mesh
Reinforcement
Length Reinforcement
(A) mm
Height of Reinforcement
Stirrups (B) mm
800kg 200 6 Q131 40 23
1200kg 220 7 Q131 45 25
1600kg 235 8 Q131 50 30
2000kg 255 9 Q188 55 35
2500kg 280 10 Q188 65 45
4000kg 330 12 Q188 70 50
5200kg 385 14 Q188 80 55
6300kg 385 16 Q188 95 60
8000kg 430 18 Q221 105 70
10000kg 470 20 Q221 120 80
12500kg 510 22 Q221 130 90
16000kg 560 26 Q221 150 100
20000kg 610 28 Q377 170 115
25000kg 670 32 Q377 195 130
A
B
When lifting it is essential that
the curvature of crane hook is at
least the diameter of the loop.
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46
Installation Instructions (Cont…)
Prior to installation it is essential to check each loop carefully for broken strands, corrosion, pinched wire or any other damage that could compromise the strength of the product. Discard any such damaged loops
immediately.
For most applications the loops should be installed parallel to the face of the unit as detailed in (1) with the minimum edge distances and anchor spacings adhered to. They can be installed at right angles to the face as
in (2) but the panel thickness must be increased accordingly.
Axial Load Rating Embedment
(A) mm
Exposed Distance
(B) mm
Anchor Spacing
(C) mm
Edge Distance
(D) mm
Panel Thickness Parallel Instalation
(E) mm
Panel Thickness Right Angled
Installation (E) mm
800kg 150 50 540 270 70 135
1200kg 160 6 620 310 90 140
1600kk 175 60 690 350 120 170
2000kg 195 65 830 420 140 175
2500kg 205 75 890 450 160 180
4000kg 250 80 1000 500 220 220
5200kg 285 100 1030 520 290 290
6300kg 285 100 1150 580 320 320
8000kg 320 110 1290 650 400 400
10000kg 350 120 1460 730 440 440
12500kg 380 130 1620 810 560 560
16000kg 420 140 1860 930 620 620
20000kg 460 150 2120 1060 680 680
25000kg 510 160 2410 1210 750 750
A
B
Lift Direction
30º 30º
D C D
E
(1) Parallel Installation
30º 30º
Lift Direction
A
B
D D C
E
(2) Right Angled Installation
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47
Fixing Inserts with Cross Hole
Fixing Inserts provide a cost effective threaded fixing system in cast concrete with compressive strength of 30N/mm2 and above. They are effective for a single point fixing where no tolerance for attaching is required.
They are manufactured from either zinc plated high grade carbon steel or stainless steel tube.
Fixing Inserts can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps are also available to protect threads from
weathering. Please contact LFS with any technical queries
Axial Load
Rating Thread
Length
(A) mm
Rebar Hole Size
(B) mm
Usable Thread
Length (C)
mm
Edge Distance
(D) mm
Edge Distance
(E) mm
Edge Distance
(F) mm
Edge Distance
(G) mm
Re-Bar Diameter
mm
Min Unbent Re-Bar
Length mm
150kg M6 35 6 10 60 60 80 80 5 320
200kg M8 40 8 15 60 60 80 80 6 320
350kg M10 50 10 17 75 75 100 100 8 540
500kg M12 60 12 23 90 90 120 120 10 540
500kg M12 70 12 33 105 105 140 140 10 540
700kg M16 70 12 20 105 105 140 140 10 650
800kg M16 80 12 30 120 120 160 160 10 650
800kg M16 100 12 50 150 150 200 200 10 650
800kg M16 120 12 70 180 180 240 240 10 650
1250kg M20 100 14 40 150 150 200 200 12 770
1250kg M20 120 14 60 180 180 240 240 12 770
1800kg M24 120 14 40 180 180 240 240 12 880
2750kg M30 150 16 65 225 225 300 300 14 1100
A
C
B
C/L
D E
(1)
G F
(2)
Installation Instructions
For all sizes above M6 a BSt500s reinforcement bar tail must be used to ensure anchorage in the concrete and should be fitted inside a re-bar cage befitting the unit as specified by the design engineer. All bar sizes and minimum edge distances in the table above should be observed. The pattern of reinforcement bar bending can be tailored to the unit, examples of suitable patterns are shown below. Permissible safe working loads are based upon a safety factor approximately three times the safe working load. Loads in shear are taken as
approximately half the safe working load.
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48
Fixing Inserts With Cross Pin
Fixing Inserts with Cross Pins provide a cost effective threaded fixing system in cast concrete with compressive of 30N/mm2 and above where either the unit or speed of installation required does not permit the use of a reinforcement bar tail. They are effective for a single point fixing where no tolerance is required for attachment. They are manufactured from either high grade zinc plated mild or stainless steel tube for light duty and solid bar for heavy duty use dependant on the application required. Fixing Inserts can be used in conjunction with Plastic Nailing Plates or Magnetic Holding Plates to provide a 10mm recess that can be made good on site. Plastic Stopper Caps are also available to protect threads from weathering.
Please contact LFS with any technical queries.
Light Duty Fixing Inserts with Cross Pin
Axial Load
Rating Thread Length (A) mm
Usable Thread
Length (B) mm
Bar Diameter
(C) mm
Bar Length (D)
mm
200kg M8 40 10 6 40
350kg M10 50 17 6 40
500kg M12 60 23 8 50
800kg M16 80 30 10 80
800kg M16 100 50 10 80
1250kg M20 100 40 12 100
1800kg M24 120 60 12 100 D
A
B
C
Heavy Duty Fixing Inserts with Cross Pin
Axial Load
Rating
Shear Load
Rating Thread
Length
(A1) mm
Usable Thread
Length (B2)
mm
Diameter
(C1) mm
Bar Length
(D1) mm
Bar Diameter
(E1) mm
600kg 400kg M10 60 35 16 50 6
900kg 560kg M12 50 20 20 75 10
900kg 560kg M12 75 40 20 75 10
1700kg 1100kg M16 75 40 22 75 10
1700kg 1100kg M16 100 40 22 75 10
2300kg 1700kg M20 75 35 25 90 12
3000kg 2400kg M24 100 55 35 100 16
6000kg 3800kg M30 125 60 50 120 25
A1
B2
D1
C1
E1
Right Angled Fixing Insert
Axial Load Rating Thread Length (A2) mm
Thread Embedment
(B2) mm
Angle Length (C2)
mm
300kg M8 50 8 20
600kg M10 60 17 25
500kg M12 45 23 25
800kg M12 70 23 30
800kg M16 60 24 35
800KG M16 100 32 35
1250kg M20 70 40 30
1200kg M20 100 40 35
1600kg M24 120 80 35
A2
C2
B2
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49
Fixing Inserts Without Cross Hole
Installation Instructions
All Fixing Inserts with Cross Pin or Angled Fixing Inserts should be fitted inside a re-bar cage befitting the unit as specified by the design engineer and should observe the edge distances as detailed in the table below. The safe working loads are based upon a 2.5:1 provided a minimum concrete strength of 30N/mm2 has been achieved. The following edge distances should be observed. For tubular inserts used in shear, safe load limit
is half axial load.
Light Duty Fixing Inserts with Cross Pin (1)
Axial Load
Rating Thread Anchor Length
Edge Distance (A)
mm
Edge Distance (B)
mm
200kg M8 40 60 60
350kg M10 50 75 75
500kg M12 60 90 90
700kg M16 80 120 120
800kg M16 100 150 150
1250kg M20 100 150 150
1800kg M24 120 180 180
Heavy Duty Fixing Inserts with Cross Pin (2)
Axial Load
Rating Thread
Anchor Length
(mm)
Edge Distance
(A) mm
Edge Distance
(B) mm
Minimum Anchor
Spacing (C)
mm
600kg M10 75 75 75 150
900kg M12 75 75 75 150
1700kg M16 75 75 75 150
2300kg M20 100 75 75 150
3000kg M24 100 100 100 200
6000kg M30 125 125 125 250
Shear Load
Rating
400kg
560kg
1100kg
1700kg
2400kg
3800kg
Light Duty Fixing Inserts with Cross Pin (3)
Axial Load Rat-
ing Thread
Anchor Length
(mm)
Edge Distance
(A) mm
Edge Distance
(B) mm
300kg M8 50 60 60
600kg M10 60 75 75
500kg M12 45 90 90
800kg M12 70 90 90
800kg M16 60 120 120
800KG M16 100 120 120
1250kg M20 70 150 150
1200kg M20 100 150 150
1600kg M24 120 180 180
B A C
(1)
B A
(3)
B A
C
(2)
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50
Spread Anchor Lifting System
The LFS range of Spread Anchors are a simple and effective system for lifting most types of precast concrete
units. The anchors are manufactured from high grade steel and, providing the anchor is specified and installed
correctly, it provides safe and secure lifting.
Anchor Selection
The following anchors are available:
Spread Anchors
The most versatile of the anchors and is suitable for lifting most types of beams, wall panels
and slabs. The second hole provides the option to use extra reinforcement where required.
These are available in safe working loads from 0.7t to 26.0t
Two Hole Anchors
Two Hole Anchors are suitable for use where load distribution is not possible through the foot
of a spread anchor and is done so by use of a reinforcement bar tail. They are particularly
useful in thin wall panels and trusses or where concrete strength is low. These are available
in safe working loads from 0.7t to 22.0t
Plate Anchors
These anchors are used for thin slabs and reinforcement is essential. They are available in
safe working loads from 1.4t to 10.0t.
Erection / Unilateral Erection Anchors
These anchors are specifically designed for pitching and turning concrete units. They have
a specially designed head which takes the load rather than the concrete which prevents
spalling and is notched to easily install the extra reinforcement required for pitching. They
are particularly useful for turning thin walled units and are available in safe working loads
from 1.4t to 22.0t
Flat Foot Anchors
These anchors similar in use to the Plate Anchor. They are used for thin slabs and
reinforcement is essential. They are available in safe working loads from 1.4t to 22.0t.
Universal Anchor
These are for light duty applications and combine the benefits of Two Hole, Erection and
Spread Anchors. They are available in 1.25t only and use a smaller Ring Clutch specific to this
load group. They are suitable for small precast units or where a small recess is required.
Sandwich Panel Anchor
These anchors are specifically designed for sandwich panel manufacture. When installed the
anchor head is close to the unit’s centre of gravity allowing it to be lifted in a straight and
upright position. These are available in safe working loads from 2.5t to 17.0t
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51
A
B
C
D
Spread Anchor Installation Instructions
Anchor Specifications
Axial Load Rating (t) Anchor Length
(A) mm
Anchor Width
(B) mm
Anchor Thickness
(C) mm
Re-Bar Hole Dia.
(D) mm
Cover to Anchor
Head (E) mm
0.7 110 30 5 14 10
1.4 110 30 6 14 10
1.4 160 30 6 14 10
2.0 130 30 8 14 10
2.0 160 30 8 14 10
2.0 210 30 8 14 10
2.5 150 30 10 14 10
2.5 200 30 10 14 10
2.5 250 30 10 14 10
3.0 160 40 10 18 10
3.0 200 40 10 18 10
3.0 280 40 10 18 10
4.0 180 40 12 18 10
4.0 240 40 12 18 10
4.0 320 40 12 18 10
5.0 180 40 15 18 10
5.0 240 40 15 18 10
5.0 400 40 15 18 10
7.5 260 60 16 26 15
7.5 300 60 16 26 15
7.5 420 60 16 26 15
10.0 300 60 20 26 15
10.0 370 60 20 26 15
10.0 520 60 20 26 15
14.0 370 80 20 35 15
14.0 460 80 20 35 15
22.0 500 80 26 35 15
22.0 620 80 26 35 15
E
Anchors are available in black, zinc plated, galvanised steel or stainless steel. Special sizes and hole positions
are available to order.
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52
Spread Anchor Installation Instructions
Load capacity and installation dimensions for large-area (slabs) or thick-walled precast units
Load Rating (t)
Anchor Length d
(mm)
Axial Load Capacity Fzul
(t)
Minimum Edge Distances
er
Min. Spaces Between Centres
ez (mm)
for ßw
≥ 15 N/mm2 (mm)
for ßw
≥ 25 N/mm2
(mm)
for ßw
≥ 35 N/mm2 (mm)
0.7 110 0.7 35 35 35 280
1.4 110 1.4 70 50 40 380
2.0 130 2.0 90 60 50 455
2.0 160 2.0 70 50 40 665
2.0 210 2.0 65 45 35 570
2.5 150 2.5 100 75 60 525
2.5 200 2.5 75 55 45 700
2.5 250 2.5 75 50 40 920
3.0 160 3.0 110 80 60 560
3.0 200 3.0 85 60 50 700
3.0 280 3.0 85 60 50 1025
4.0 180 4.0 150 100 80 630
4.0 240 4.0 100 75 60 840
4.0 320 4.0 110 75 60 1175
5.0 180 5.0 190 140 110 630
5.0 240 5.0 150 100 80 840
5.0 400 5.0 115 85 65 1480
7.5 260 7.5 220 170 125 910
7.5 300 7.5 190 140 110 1050
7.5 420 7.5 190 135 110 1540
10.0 300 10.0 275 200 175 1050
10.0 370 10.0 220 160 125 1295
10.0 520 10.0 225 160 130 1910
14.0 370 14.0 400 280 225 1295
14.0 460 14.0 300 220 175 1610
22.0 500 22.0 450 340 300 1750
22. 620 22.0 400 280 225 2170
t
≥ ez
≥ ez
≥ ez
≥ er
≥ er
Re-bar Links
Anchors to be installed in this direction only
When the load is
towards the narrow
edge of a unit angled
lift reinforcement must
be installed
≥ 0.5
e z
≥ ez
≥ er ≥ e
r
Minimum thickness of precast unit:
t = Anchor Length + Cover to Anchor Head + Specified Concrete Cover
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53
Load Capacity and Installation Dimensions for Thin Walled Precast Units
(1) Angled lift at 30°< β ≤ 60° without angle pull reinforcement only allowed when:
bw ≥ 15N/mm2 + 3 times min. thickness of unit
bw ≥ 25N/mm2 + 2,5 times min. thickness of unit
bw ≥ 35N/mm2 + 2 times min. thickness of unit
(min thickness of unit e = 2 x er)
(2)Where concrete strength bw ≥ 23N/mm2 Fzul
can be taken as 100%
(3)Angle of b ≥ 60° due to cable spread is not permitted
Load Rating (t) Anchor length
(D) (mm)
Spacing Between
Anchor Centres
Min. Thickness of Precast Unit
(2 x er) 100% Fzul 80% Fzul
min. ez for ßw ≥ 15 N/
mm2 for ßw ≥ 25 N/
mm2 for ßw ≥ 35 N/
mm2
Pull
(ß ≤ 30°)
Angled pull
(ß > 30°)
(mm) (mm) (mm) (mm) (t) (t)
0.7 110 330 70 60 60 0.7 0.6
1.4 110 330 90 70 70 1.4 1.1
2.0 130 390 110 90 90 2.0 1.6
2.0 160 480 100 80 80 2.0 1.6
2.0 210 630 90 70 70 2.0 1.6
2.5 150 450 120 80 80 2.5 2.0
2.5 200 600 110 80 70 2.5 2.0
2.5 250 750 100 80 70 2.5 2.0
3.0 160 480 120 100 100 3.0 2.4
3.0 200 600 110 90 90 3.0 2.4
3.0 280 840 100 80 80 3.0 2.4
4.0 180 540 140 120 100 4.0 3.2
4.0 240 720 130 110 100 4.0 3.2
4.0 320 960 120 100 100 4.0 3.2
5.0 180 540 180 140 140 5.0 4.0
5.0 240 720 160 120 120 5.0 4.0
5.0 400 1200 140 100 100 5.0 4.0
7.5 260 780 240 160 120 7.5 6.0
7.5 300 900 200 160 120 7.5 6.0
7.5 420 1260 160 120 120 7.5 6.0
10.0 300 900 280 200 160 10.0 8.0
10.0 370 1110 240 160 160 10.0 8.0
10.0 520 1560 200 140 120 10.0 8.0
14.0 370 1110 300 250 200 14.0 11.2
14.0 460 1380 240 200 160 14.0 11.2
22.0 500 1500 400 300 250 22.0 17.6
22.0 620 1860 300 250 250 22.0 17.6
Load Capacity and Minimum Edge Distances
0.5 x A
100% F zul
80% (2)
(3)
30o 30o
er er (3)
80% (2) 80% (2)
100% F zul
30o 30o
0.5 x ez
D
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54
Installation Instructions for Spread Anchors
Load capacity and installation dimensions for large-area (slabs) or thick-walled precast
units.
Concrete strength must be ≥ 15 N/mm2 with grade 460B reinforcement
(1) Angled lift at 30°< β ≤ 60° without angle pull
reinforcement only allowed when:
bw ≥ 15N/mm2 + 3 times min. thickness of unit
bw ≥ 25N/mm2 + 2,5 times min. thickness of unit
bw ≥ 35N/mm2 + 2 times min. thickness of unit
(min thickness of unit t = 2 x er)
Pull (ß<= 30°) Angled Pull (ß> 30°)
Mesh
Reinforcement
BST500M
Slot-in links BSt500S
n Ø..x A
Edge Reinforcement
BST500S
Mesh
Reinforcement
Slot-in links BSt500S
n d..x A
Edge
Reinforcement
BST500S
Angled Lift
Reinforcement BSt500S
n Ø x B
(t) (Both sides) (mm) (mm) (Both sides) (mm) (mm) (mm)
0,7 142 2 Ø 6x 400 Ø 6 A142 4 Ø 6 x 300 Ø 8 Ø 6 x 450
1,4 142 2 Ø 6x 400 Ø 6 A142 4 Ø 6 x 400 Ø 8 Ø 6 x 900
2,0 142 2 Ø 6x 500 Ø 6 A142 4 Ø 6 x 500 Ø 8 Ø 8 x 950
2,5 142 2 Ø 8x 600 Ø 8 A142 4 Ø 8 x 600 Ø10 Ø 8 x1200
3,0 142 2 Ø 8x 700 Ø 8 A142 4 Ø 8 x 700 Ø10 Ø10 x 1150
4,0 142 2 Ø 8x 800 Ø 8 A142 4 Ø 8 x 800 Ø12 Ø10 x 1500
5,0 142 2 Ø10 x 800 Ø10 A142 4 Ø10 x 800 Ø12 Ø12 x 1550
7,5 193 2 Ø10 x 800 Ø10 A193 4 Ø10 x 800 Ø12 Ø14 x 2000
10,0 193 4 Ø10 x 1000 Ø12 A193 6 Ø10 x 1000 Ø14 Ø16 x 2300
14,0 252 4 Ø10 x 1000 Ø14 A252 8 Ø10 x 1000 Ø14 Ø20 x 2600
22,0 252 4 Ø12 x 1200 Ø14 A252 8 Ø12 x 1200 Ø16 Ø25 x 3000
Load Rating
Angled Lift Reinforcement B = 2 x Leg Length Approx
The angled lift reinforcement must be
installed in the opposite direction of the load
Slot in links positioned as close to the anchor as possible
Area of slot in links should be ≥ 3 times anchor length
Edge Reinforcement
Mesh Reinforcement
A
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55
Min. Distances From Edge / Centres for ßw ≥ 15 N/mm2 Maximun Permissable Load
er ez D L Axial Pull Angle pull Erection
(mm) (mm) (mm) (mm) (t) (t) (t)
0.7 100 700 8 600 0.7 0.56 0.35
1.4 100 700 10 700 1.4 1.12 0.7
2.0 100 800 10 750 2.0 1.6 1.0
2.5 100 875 12 800 2.5 2.0 1.25
3.0 150 950 12 850 3.0 2.4 1.5
4.0 150 1050 14 950 4.0 3.2 2.0
5.0 150 1435 16 1000 5.0 4.0 2.5
7.5 250 1470 20 1200 7.5 6.0 3.75
10.0 300 1820 20 1500 10.0 8.0 5.0
14.0 525 1800 25 1800 14.0 11.2 7.0
22.0 710 2200 28 1800 22.0 17.6 11.0
Load Rating (t)
Installation Instructions for Spread Anchors
Load capacity and installation dimensions for turning and erecting precast elements
Reinforcement Steel BST 500 S L = overall length, radius according to BS 8666
≤90o
L
D
Dependant on
unit thickness
The horizontal bars of the turning reinforcement
must be at least the minimum cover
Anchors must be installed in this direction only
≥ ez Spacing to the next anchor
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56
A
B
C
D
Two Hole Anchor Installation Instructions
Anchor Specifications
Load Rating
(t)
Anchor Length
(A) mm
Anchor Width
(B) mm
Anchor Thickness
(C) mm
Hole Diameter
(D) mm
1.4 90 30 6 14
2.0 90 30 8 14
2.5 90 30 10 14
3.0 120 40 10 18
4.0 120 40 12 18
5.0 120 40 15 18
7.5 160 60 16 18
10.0 170 60 20 26
14.0 240 80 20 29
22.0 300 80 26 35
26.0 300 120 30 65
Cover to Anchor Head
(E) mm
10
10
10
10
10
10
15
15
15
15
15
E
Anchors are available in black, zinc plated, galvanised steel or stainless steel. Special sizes and hole positions
are available to order.
Installation Instructions for Two Hole Anchors
Load capacities and installation dimensions
Position the angled pull reinforcement as closely to the
recess former as possible
(1) Angled lift at 30°< β ≤ 60° without angle pull
reinforcement only allowed when:
bw ≥ 15N/mm2 + 3 times min. thickness of unit
bw ≥ 25N/mm2 + 2,5 times min. thickness of unit
bw ≥ 35N/mm2 + 2 times min. thickness of unit
(min thickness of unit e = 2 x er)
(2)Where concrete strength bw ≥ 23N/mm2 Fzul can
be taken as 100%
(3)Angle of β ≥ 60° due to cable spread is not
permitted
Load Rating (t) Anchor Length D
(mm)
Spacing Between Anchor Centres ez
(mm)
Min. Thickness of Precast Unit 2 x er
(mm)
100% Fzul Pul
ß<=30° (t)
1.4 90 500 80 1.4 1.1
2.0 90 600 90 2.0 1.6
2.5 90 600 100 2.5 2.0
3.0 120 650 100 3.0 2.4
4.0 120 700 110 4.0 3.2
5.0 120 750 120 5.0 4.0
7.5 160 1200 130 7.5 6.0
10.0 170 1200 140 10.0 8.0
14.0 240 1500 160 14.0 11.2
22.0 300 1500 180 22.0 17.6
26.0 300 1500 200 26.0 20.8
80% Fzul Angled Lift
ß>30° (t)
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57
Load
Rating
Pull (ß<= 30°)
Angled (ß> 30°)
Mesh Reinforce-
ment
Both Sides of
the Anchor
Slot in links BSt500S
n d..xL1
Edge Reinforce-
ment
BST500S
2 Reinforce-ment tails BSt500S
n Ø x Lz
Mesh Rein-
forcement
Both Sides of
the Anchor
Slot in links BSt500S
n d..xL1
Edge Rein-forcement
BST500S
2Reinforce-ment Tails BSt500S
n Ø x Lz
1 Angled Lift Reinforce-
ment BSt500S
n Ø x Lr
(t) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)
1.4 A142 2 Ø 6 x 400 Ø 6 1 Ø10 x 650 A142 4 Ø 6 x 400 Ø 8 1 Ø10 x 650 Ø 6 x 900
2.0 A142 2 Ø 6 x 500 Ø 6 1 Ø12 x 800 A142 4 Ø 6 x 500 Ø 8 1 Ø12 x 800 Ø 8 x 950
2.5 A142 2 Ø 8 x 600 Ø 6 1 Ø12 x 1000 A142 4 Ø 8 x 600 Ø10 1 Ø12 x 1000 Ø 8 x 1200
3.0 A142 2 Ø 8 x 700 Ø 8 1 Ø14 x 1000 A142 4 Ø 8 x 700 Ø10 1 Ø14 x 1000 Ø10 x 1150
4.0 A142 2 Ø 8 x 700 Ø 8 1 Ø16 x 1200 A142 4 Ø 8 x 800 Ø12 1 Ø16 x 1200 Ø10 x 1500
5.0 A142 2 Ø 8 x 800 Ø 8 1 Ø16 x 1500 A142 4 Ø10 x 800 Ø12 1 Ø16 x 1500 Ø12 x 1550
7.5 A142 2 Ø10 x 800 Ø10 1 Ø20 x 1750 A142 4 Ø10 x 800 Ø12 1 Ø20 x 1750 Ø12 x 2000
10.0 A142 4 Ø10 x 800 Ø12 1 Ø25 x 1850 A142 6 Ø10 x
1000 Ø12 1 Ø25 x 1850 Ø16 x 2300
14.0 A142 4 Ø10 x 1000 Ø14 1 Ø28 x 2350 A142 8 Ø10 x
1000 Ø12 1 Ø25 x 2350 Ø20 x 2600
22.0 A142 4 Ø12 x 1200 Ø14 1 Ø28 x 3000 A142 8 Ø12 x
1200 Ø16 1 Ø25 x 3000 Ø25 x 3000
26.0 A142 6 Ø12 x 1200 Ø16 2 Ø28 x 3050 A142 8 Ø12 x
1200 Ø16 2 Ø25 x 3050 Ø25 x 3450
Installation Instructions for Two Hole Anchors
Reinforcement Required
Angled Lift Reinforcement Lr = 2 x Leg Length Approx
Length of slot in link L1
Area of slot in links should be ≥ 3 times anchor length
Slot in links positioned as close to the anchor as possible
Lz
(1) Angled lift at 30°< β ≤ 60° without angle pull reinforcement only allowed when:
bw ≥ 15N/mm2 + 3 times min. thickness of unit
bw ≥ 25N/mm2 + 2,5 times min. thickness of unit
bw ≥ 35N/mm2 + 2 times min. thickness of unit
(min thickness of unit e = 2 x er)
(2)Where concrete strength bw ≥ 23N/mm2 Fzul
can be taken as 100%
(3)Angle of b ≥ 60° due to cable spread is not permitted
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58
Load Rating
(t)
Anchor Length
(A) mm
Erection Anchor
Width (B1)
mm
Anchor Thickness
(C) mm (D) mm
Cover to Anchor Head
(E) mm
Cover to Pitching
Nib (F) mm
1.4 200 55 6 45 10 5
2.5 230 55 10 45 10 5
4.0 270 70 12 70 10 5
5.0 290 70 15 70 10 5
7.5 320 95 15 90 10 6
10.0 390 95 20 90 15 6
12.5 500 148 20 90 15 9
17.0 500 148 25 90 15 9
22.0 500 148 30 90 15 9
Unilateral Erection Anchor
Width (B2)
mm
40
40
55
55
80
80
115
115
115
Erection Anchor Installation Instructions
Anchor Specifications
A
B
C
D
F E
B2
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59
Installation Instructions for Erection and
Unilateral Erection Anchors
Load Capacities and Installation Dimensions
1Where concrete strength bw ≥ 23 N/mm2 Fzul can be taken as 100%
2Angle of lift b > 60° due to cable spread are not permitted
3 Insert the pitching reinforcement in the anchor notches.
Only LFEA allows pitching on both sides. Reinforcement patterns for pitching are the same for both stan-dard and unilateral erection anchors.
Load Rating(t)
Anchor Length d (mm)
Min. Spacing Between Anchor Centres ez (mm)
Min. Thickness of Precast Unit (2 x er)
Transport
Lift
(ß ≤ 15°)
Transport
Angled Lift
(ß > 15°)
Pitching
Erection Anchor
Unilateral Erection Anchor
100% Fzul (t) 80%
Fzul (t)
1.4 200 700 90 100 1.4 1.1 0.7
2.5 230 800 120 120 2.5 2.0 1.3
4.0 270 950 140 150 4.0 3.2 2.0
5.0 290 1000 140 160 5.0 4.0 2.5
7.5 320 1200 160 175 7.5 6.0 3.8
10.0 390 1500 200 200 10.0 8.0 5.0
12.5 500 1500 240 240 14.0 11.2 7.0
17.0 500 1500 300 300 17.0 13.6 8.5
22.0 500 1500 360 360 22.0 17.6 11.0
50% Fzul (t)
Reinforcement Required
Direction of Former
≥ ez Spacing to the next
Pitching reinforcement on both sides also acts as angled pull reinforcement. No further angled lift reinforcement is required. The horizontal legs of the turning reinforcement should be situated within the outermost position of the reinforced area.
Load Range (t)
1.4 10 x 700
2.5 12 x 800
4.0 12 x 950
5.0 16 x 1000
7.5 20 x 1200
10.0 20 x 1500
12.5 25 x 1500
17.0 25 x 1800
22.0 28 x 1800
Pitching Reinforcement BSt 500 D x L (mm)
Concrete strength ßw ≥ 15 N/mm2
For the following strengths, the length of L can be reduced by the
following factors:
ßw ≥ 25 N/mm2 = x 0.8 ßw ≥ 35 N/mm2 = x 0.65
Concrete strength bw ≥ 15 N/mm2
Reinforcement Steel BST 500 S L = overall length, radius according to BS 8666
≤90o
L
D
Dependant on
unit thickness
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60
Installation Instructions for Plate Anchors
Load Capacities, Installation Dimensions and Additional Reinforcement for Thin Slabs
A
B
C
D
E
Load Rating (t)
Anchor Length
Min. Spaces Between Centres and from Edges
Reinforcement Tails
Permissible Load
A er ez Ø L bw ≥ 15 N/mm2 bw ≥ 25 N/mm2
(mm) (mm) (mm) (mm) (mm) (t) (t)
1.4 55 115 230 8 200 1,12 1,4
2.5 80 165 330 10 300 2,0 2,5
5.0 120 240 480 12 450 4,0 5,0
10.0 160 330 660 16 600 8,0 10,0
Load Rating (t)
Anchor Height (A)
mm
Anchor Width (B)
mm
Anchor Thickness
(C) mm
Plate Width (D)
mm
Plate Thickness
(E) mm
1.4 55 30 6 80 8
2.5 80 30 10 80 8
5.0 120 40 15 100 10
10.0 160 60 20 140 12
Minimum thickness of precast unit:
t = Anchor Length + Cover to Anchor Head + Specified Concrete Cover
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61
Installation Instructions for Flat Foot Anchors
Load Capacities, Installation Dimensions and Additional Reinforcement for Thin Slabs
Reinforcement Required
A
B
C
D
Load Rating (t)
Anchor Height (A)
mm
Anchor Width (B)
mm
Anchor Thickness
(C) mm
Foot Width
(D) mm
0.7 65 30 5 70
1.4 65 30 6 70
2.0 70 30 8 80
2.5 75 30 10 94
3.0 90 40 10 100
4.0 110 40 12 100
5.0 125 40 15 105
7.5 170 60 16 120
10.0 200 60 20 120
12.5 220 80 16 200
17.0 270 80 20 200
22.0 310 80 26 200
Where loads are acting towards the edge of an element, insert angle pull reinforcement as detailed for spread or Two-Hole anchors.
Load Rating (t)
Anchor Length
Minimum Thickness of
Unit
Min. Distances Between
Centres and Edges Reinforcement Tails Permissible Loads
A t er ez Ø L bw ≥ 15 N/mm2
bw ≥ 25 N/mm2
bw ≥ 30 N/mm2
(mm) (mm) (mm) (mm) (mm) (mm) (t) (t) (t)
0.7 65 80 140 280 8 200 0,7 0,7 0,7
1.4 65 80 140 280 8 250 1,4 1,4 1,4
2.0 70 90 150 300 8 300 1,8 2,0 2,0
2.5 75 100 160 320 8 300 2,0 2.5 2.5
3.0 90 120 190 380 10 400 2,8 3,0 3,0
4.0 110 140 230 460 12 450 3,7 4,0 4,0
5.0 125 160 206 520 12 500 4,4 5,0 5,0
7.5 170 215 340 680 14 600 5,46 7,04 7,5
10.0 200 2,45 400 800 14 600 7,55 10,0 10,0
12.5 220 265 440 880 16 750 8,85 12,5 12,5
17.0 270 315 540 1080 16 900 12,03 17,0 17,0
22.0 310 355 620 1240 20 1100 14,8 22,0 22,0
Minimum thickness of precast unit:
t = Anchor Length + Cover to Anchor Head + Specified Concrete Cover
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62
Installation Instructions for Sandwich Panel Anchors
Load Capacities, Installation Dimensions and Additional Reinforce-
ment
Anchor Specifications
Load group
(t)
Anchor Length
(A) mm
Anchor Width
(B) mm
Anchor Thickness
(C) mm
Axial Lift Re-Bar Hole
(D2) mm
2,5 250 40 10 18
5,0 300 60 16 26
7,5 350 80 16 35
10,0 350 80 20 35
17,0 400 100 20 35
A
D1
D2
C
B The sloping head of the sandwich panel anchor type LFSA -ST can be inserted close to the vertical centre of gravity
in large precast concrete sandwich-panels. The panel hangs almost upright during transportation and installation.
H1 = acc. To thickness of the panel but at least as per table
below
2: Only required if FH exists, e. g. when positive production
Part Code
Load Group
(t)
Minimum Anchor Spacing
ez (mm)
Minimum Thickness
of Panel 2 x er
(mm)
Slot-in Links for Lift ds x ls
(mm) 460B Grade
Erection Reinforcement (not included in delivery)
Load capacity
(4)
ds1 ls1 h1 ds2 ls2
mm mm mm (3) mm mm (t) (t9
LFSA -ST-2,5-25 2,5 600 100 2 dia. 8 x 600 10 600 > 60 14 800 2.5 0.8
LFSA -ST-5,0-30 5,0 750 120 2 dia. 8 x 800 14 700 > 80 16 1200 5.0 1.8
LFSA -ST-7,5-35 7,5 1200 130 2 dia. 10 x 800 16 800 > 100 25 1400 7.5 2.6
LFSA -ST-10,0-35 10,0 1200 140 4 dia. 10 x 800 20 900 > 120 25 1800 10.0 3.5
LFSA -ST-17,0-40 17,0 1500 180 4 dia. 12 x 1200 20 1100 > 140 28 2500 17.0 5.0
Additional Reinf. for Lift (not included in
delivery)
(3) In order to ensure adequate corrosion protection, we recommend hot-dip galvanised additional reinforcement.
(4) The loads at diagonal pull for concrete strengths < 23 N/mm2 must be reduced to 80%.
DS1
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63
Installation Instructions for Universal Anchors
Load Capacities, Installation Dimensions and Additional Reinforcement
The Universal Anchor has been designed especially for lifting and turning thin panels and lightweight
concrete units.
Anchor Specifications
A
B
C
Load Rating
(t)
Anchor Height (A)
mm
Anchor Width (B)
mm
Cover to Pitching Re-
Bar (C) mm
1.25 120 30 5
Min. Edge Spacing er
(mm)
30
Min. Edge Spacing ez
(mm)
240
Axial
Load (t)
1.25
Angled Lift Load ≤45º
(t)
1.0
Pitching
Load (t)
0.65
For thin panels or those with a single layer of reinforcement mesh, an extra
reinforcement tail of 8mm x 700 460B grade steel is required.
For any turning or erecting units reinforcement is required as detailed below
30o
Dependant on
unit thickness
Pitching reinforcement should be to 460B grade , 8mm diame-
ter and 600mm long unbent length
The Universal Anchor has a Ring Clutch with a
galvanised steel wire loop and smaller former
both specific to this anchor.
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64
Spread Anchor Accessories
Ring Clutches
Ring Clutches are a manually operated coupler available in various load groups for use with LFS Spread Anchors and are compatible with the Frimeda System. The head of the clutch includes a locking pin which fastens around the lifting hole of the anchor when installed in the recess of the concrete unit. The Ring Clutch is coupled to a corresponding Spread Anchor for the safe lifting laterally, turning or swivelling of precast concrete units. All LFS Ring Clutches are individually tested and certified by an approved institution. Ring Clutches are available in 2.5t, 5.0t, 10.0t and 20.0t load groups with
both solid handles and rope attachments.
Instructions for Use
To lift the precast unit, select the correct load rated clutch appropriate to the installed anchor and place in the recess as shown in Fig. 1. This can be found stamped on the head and the shackle. Only the correct clutch will fit
the anchor.
Lifting
The clutch can be used to lift in any direction but angles must not exceed β=60o as shown in Fig. 2. The anchor’s load limit and angle reduction factors
must be observed.
Releasing
To release, remove tension from the chains and, with the clutch in hand, pull the locking bolt towards the main body as shown in Fig. 3. The clutch will now
be released.
Engaging
The clutch is prepared for lifting by locking the bolt through the anchor by moving the handle away from the direction of lift as shown in Fig.2. If correctly installed the clutch should be free to move in any direction and the unit can be
de-moulded or lifted safely.
LFS
Direction of Load
90o
Direction
of Load Direction
of Load
LFS
Misusing of Ring Clutches
If the shackle is below
the lifting head when
load is applied it can
lock in this position and
may damage the clutch.
If the Ring Clutch be pulled
towards the surface of the
units at >90o then this risks
bending the shackle on the
edge of the unit.
Shackle
locks when
in this
position
When the Ring Clutch is
being used as shown in
the left hand drawing below the shackle can
lock within the lifting head. This is rectified by
positioning the shackle as shown in the right
hand drawing.
Allowed
Lift
Direction
Fig. 1
Lift
Direction
Fig. 2
Fig. 3
90o Max. Lift
Direction
Pitching / Turning Units
When pitching and turning units using Erection Anchors the direction of the lift
with the Ring Clutch should be a maximum of 90o to the panel as shown in Fig.
4. The anchor will prevent damaging the unit under load. The use of a spreader
beam is highly recommended to prevent torsional and angular forces.
Fig. 4
Shackle
cannot
lock when
in this
position
β
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65
Spread Anchor Accessories
Ring Clutches - Maintenance and Examination
In line with industry lifting regulations, all Ring Clutches should be examined by a qualified engineer every six months from the date of the original test which is supplied when new. Providing they are treated with care, Ring Clutches can be re-used indefinitely. However, before every lift, it is essential that each clutch be checked for damage and wear. LFS do not authorise or guarantee the safety of any item that has had any repair other than the replacement of worn locking pins. Ring Clutches with wire rope must only be used with the
original cables supplied when new.
A
C
Lifting Head
As part of the checking the Ring Clutch before
lifting, the head should be examined for any wear
or damage and should no longer be used if any is
present. The aperture (A) should not be greater
than the values stated in the table opposite.
Ring Clutch
SWL (t) (A) Max. mm
1.25 8
2.5 13.5
5.0 19.5
10.0 23.5
26.0 37
B
Shackles
If there is any damage to the shackle such as bending
etc then it should no longer be used. If the value of
(B) is equal to or greater than those stated in the
table opposite then the Ring Clutch should no longer
be used.
Ring Clutch SWL
(t) (B) Min. mm
2.5 13
5.0 19
10.0 25
26.0 38.5
Ring Clutch SWL
(t) (C) Min. mm
2.5 12
5.0 15.5
10.0 22.5
26.0 31
1.3 7
Locking Pins
This is the only part of the Ring Clutch that
can be replaced by the user. Spare parts
are available from LFS on request. The (C)
dimension should be checked before lifting
and replaced if the value is less than stated
in the table opposite.
Wire Cable Loops
Before using a Ring Clutch with a Wire Rope it should be checked for damage such as broken braids, kinking,
corrosion, damaged ferrules or slipping of wires within, separated braids or broken wires at any point on the
rope. Wire ropes should not be in contact with corrosive substances such as acids or alkalis and should be
replaced when any damage is observed.
When using always select a large diameter crane hook as the pressure exerted by smaller hooks can cause
premature damage and wear to the wire.
LFS can replace worn wire ropes on request.
For any further information please contact LFS.
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66
Rubber Recess Formers
These are used for mounting anchors to wooden formwork or floating installation for
all variations of Spread Anchors. A smaller version is available for Universal Anchors.
The former has a metric thread and a bayonet fixing to allow the user to install
through the side of either wooden or steel formwork with threaded bar. These are
made from a hardwearing and flexible rubber and have a plastic insert that surrounds
the anchor to help prolong the life of the former. Available in all load groups.
Spread Anchor Accessories
Steel Magnetic Formers
Used for mounting anchors to steel moulds or formwork beds. Special variations are
available to order
Metal Nailing Plates
Used for attaching anchor to wooden formwork.
Former Closer
For securely closing the former during floating installations.
Installing Anchors
When installing anchors, always be sure to use the appropriate former for the formwork being used and ensure
that it is firmly attached to prevent it becoming dislodged when pouring concrete. Always ensure that the
former is greased to allow easy removal once the concrete is set and that the possibility of air pockets is
eliminated with vibration or an equally effective method. To remove the former use two steel bars in a scissors
action as shown below being careful not to cause any damage and remove any excess concrete prior to lifting.
Always ensure formers are in suitable condition before casting and replace when worn out.
Floating Installation
Installation Through Formwork
(Wood or Steel)
Installation With Magnetic
Holding Plate (Steel Mould)
Installation With Nailing
Plate (Wooden Mould)
Removal of Former
Using Steel Bars
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67
Plastic Spacers and Accessories
‘A' Frame Spacers
Cover / Max Bar Size Pack Size
15mm / 16mm 1,000
20mm / 16mm 1,000
25mm / 16mm 1,000
30mm / 16mm 1,000
35mm / 16mm 1,000
40mm / 16mm 1,000
50mm / 16mm 1,000
25mm / 20mm 1,000
30mm / 20mm 1,000
40mm / 20mm 1,000
50mm / 20mm 1,000
Wheel Spacers
Cover / Max Bar Size Pack Size
15mm / 12mm 100
20mm /12mm 100
25mm / 12mm 500
25mm / 20mm 500
30mm / 12mm 500
30mm / 20mm 500
40mm / 12mm 250
40mm / 20mm 300
50mm / 12mm 250
50mm / 20mm 250
60mm / 28mm 100
Plastic Shims (Plain and Horseshoe)
Thickness Pack Size
2mm 1,000
3mm 1,000
5mm 500
7mm 500
9mm 250
RE-Bar Safety Caps
Bar Range Pack Size
Small (6-18) 250
Large (16-32 250