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FEM Standard
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FEM Table T.2.1.2.2.
Classes of Utilizzation
U9
FEM Table T.2.1.2.3.
Spectrum Classes
FEM Table T.2.1.2.4.
Appliance Groups
Symbol
U0
U1
U2
U3
U4
U5
U6
U7
U8
Symbol
Q1
Q2
Q3
Q4
Load Spectrum Class
Q1
FEM Table T.2.1.2.5.
Guidance for group classification of APPLIANCE
Q2 Q3 Q4
Reference
01 02
03
04
05
06
07
08 09
10
11
12.a
12.b
13
14
15
16
17
18 19
(1) Only a few typical cases of use are shown, by way of guidance, in this column.
FEM Table T.2.1.3.5.
Guidance for group classification of MECHANISM
Reference
20 21
22
01 02
03
04
05
06
07
08 09
10
11
12.a
12.b
13
14
15
16
17
(1) Only a few typical cases of use are shown, by way of guidance, in this column.
18 19 20 21
22
FEM Table T.2.1.2.2.
Classes of Utilizzation
FEM Table T.2.1.2.3.
Spectrum Classes
0.125
0.25
0.5
FEM Table T.2.1.2.4.
Appliance Groups
U0 U1
Total duration of use (number nmax of hoisting cycles)
<
16 000 <
32 000 <
63 000 <
125 000 <
250 000 <
500 000 <
1 000 000 <
2 000 000 <
4 000 000 <
<
<
<
<
A1 A1
FEM Table T.2.1.2.5.
Guidance for group classification of APPLIANCE
A1 A1 A1 A2 A2 A3
Type of appliance Particulars concerning nature of use (1) Designation
Hand-operated appliances - Erection cranes - Erection and dismantling cranes for power stations, machine shops, etc.
-
Stocking and reclaiming trasporters
Hook duty
Stocking and reclaiming trasporters
-
Workshop cranes Grab or magnet Overhead travelling cranes, pig-breaking cranes, scrapyard cranes
-
Ladle cranes - Soaking-pit cranes - Stripper cranes, open- heart furnace-charging cranes
-
Forge cranes - Bridge cranes for unloading, bridge cranes for containers
Hook or spreader duty
Other bridge cranes (with grab and/or slewing jib crane)
Hook duty
Bridge cranes for unloading , bridge cranes (with grab and/or slewing jib crane)
Grab or magnet
Drydock cranes, shipyard jib cranes, jib cranes for dismantling
Hook duty
Cockside cranes (slewing, on gantry), floating cranes and pontoon derricks
Hook duty
Dockside cranes (slewing, on gantry), floating cranes and pontoon derricks
Grab or magnet
Floating cranes and poonton derricks for very heavy loads (usually greater than 100 ton)
-
Deck cranes Hook duty Deck cranes Grab or magnet
(1) Only a few typical cases of use are shown, by way of guidance, in this column.
FEM Table T.2.1.3.5.
Guidance for group classification of MECHANISMType of appliance
Designation
Tower cranes for building - Derricks - Railway cranes allowed to run in train
-
Particulars concerning nature of use (1)
Hand-operated appliances - Erection cranes - Erection and dismantling cranes for power stations, machine shops, etc.
-
Stocking and reclaiming trasporters
Hook duty
Stocking and reclaiming trasporters
-
Workshop cranes Grab or magnet Overhead travelling cranes, pig-breaking cranes, scrapyard cranes
-
Ladle cranes - Soaking-pit cranes - Stripper cranes, open- heart furnace-charging cranes
-
Forge cranes - Bridge cranes for unloading, bridge cranes for containers
Hook or spreader duty
Other bridge cranes (with grab and/or slewing jib crane)
Hook duty
Bridge cranes for unloading , bridge cranes (with grab and/or slewing jib crane)
Grab or magnet
Drydock cranes, shipyard jib cranes, jib cranes for dismantling
Hook duty
Cockside cranes (slewing, on gantry), floating cranes and pontoon derricks
Hook duty
Dockside cranes (slewing, on gantry), floating cranes and pontoon derricks
Grab or magnet
Floating cranes and poonton derricks for very heavy loads (usually greater than 100 ton)
-
(1) Only a few typical cases of use are shown, by way of guidance, in this column.
Deck cranes Hook duty Deck cranes Grab or magnet Tower cranes for building - Derricks - Railway cranes allowed to run in train
-
FEM Table T.2.1.2.2.
Classes of Utilizzation
<
<
¯<
<
<
<
¯<
<
FEM Table T.2.1.2.3.
Spectrum Classes
kp<
kp<
kp¯
kp<
FEM Table T.2.1.2.4.
Appliance Groups
U2 U3
Total duration of use (number nmax of hoisting cycles)
nmax¯
nmax ¯
nmax <
nmax ¯
nmax ¯
nmax ¯
nmax ¯
nmax <
nmax ¯
nmax ¯
Spectrum Factor kp
¯
¯ <
¯
Class of utilization
A1 A2
FEM Table T.2.1.2.5.
Guidance for group classification of APPLIANCE
A2 A3 A3 A4 A4 A5
Appliance group
A1 - A2 A1 - A2
A2 - A4
A5
A6 - A8
A3 - A5
A6 - A8
A6 - A8 A8
A8
A6 - A8
A5 - A6
A4
A6 - A8
A3 - A5
A5 - A6
A6 - A8
A2 - A3
A3 - A4 A4 - A5
(1) Only a few typical cases of use are shown, by way of guidance, in this column.
FEM Table T.2.1.3.5.
Guidance for group classification of MECHANISMType of mechanism
Hoisting Slewing
A3 - A4 A2 - A3
A4
M1 - M2 - M3 M2 - M3
M2 -
M5 - M6 M4
M7 - M8 M6
M6 M4
M8 M6
M7 - M8 - M8 M6
M8 M6
M8 -
M6 - M7 M5 - M6
M4 - M5 M4 - M5
M8 M5 - M6
M5 - M6 M4 - M5
M6 - M7 M5 - M6
M7 - M2 M6 - M7
M3 - M4 M3 - M4
(1) Only a few typical cases of use are shown, by way of guidance, in this column.
M4 M3 - M4 M5 - M6 M3 - M4
M4 M5 M2 - M3 M1 - M2
M3 - M4 M2 - M3
FEM Table T.2.1.2.2.
Classes of Utilizzation
FEM Table T.2.1.2.3.
Spectrum Classes
0.125
0.25
0.5
1
FEM Table T.2.1.2.4.
Appliance Groups
U4 U5
16 000
32 000
63 000
125 000
250 000
500 000
1 000 000
2 000 000
4 000 000
Class of utilization
A3 A4
FEM Table T.2.1.2.5.
A4 A5 A5 A6 A6 A7
FEM Table T.2.1.3.5.
Guidance for group classification of MECHANISMType of mechanism
Luffing Traverse
M1 - M2- M1
M1 - M2
- M2
- M4 - M5
- M6 - M7
- M4
- M6 - M7
- M4 - M5 - M7
- M7
- M5
M3 - M4 M6 - M7
- M4 - M5
M3 - M4 M7 - M8
M4 - M5 M4 - M5
M5 - M6 -
M6 - M7 -
M3 - M4 -
-
(1) Only a few typical cases of use are shown, by way of guidance, in this column.
M3 - M4 M2 M4 - M3 M4 - M5
M4 M3 M1 - M2 -
M2 - M3
Appliance Groups
U6 U7 U8 U9A5 A6 A7 A8
FEM Table T.2.1.2.5.
A6 A7 A8 A8 A7 A8 A8 A8 A8 A8 A8 A8
FEM Table T.2.1.3.5.
Guidance for group classification of MECHANISMType of mechanism
TravelM1
M2 - M3
M2
M5 - M6
M7 - M8
M5
M7 - M8
M6 - M7 M8
M8
M6
M4- M5
M4- M5
M4 - M5
M5 - M6
M3 - M4
M4 - M5
-
(1) Only a few typical cases of use are shown, by way of guidance, in this column.
M3 M3 - M4
M3 -
-