AA SPEC 377002

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AA_SPEC_377002.doc APPROVED 3 February 2010 Page 1 of 9

Anglo Technical accepts no liability for any damage whatsoever that may result from the use of this material or the information containedtherein, irrespective of the cause and quantum thereof.

AA SPECIFICATION 377002

STEEL CORD REINFORCED CONVEYORBELTING

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CONTENTS PAGE

1

SCOPE 2

2 TECHNICAL REQUIREMENTS TO BE SPECIFIED BY THE ENGINEER 2

3 DEFINITIONS 2

4 REQUIREMENTS 3

4.1 COVER THICKNESSAND TYPE 34.2 CORD SPACING 34.3 WIDTH 34.4 CLASS 34.5 JOINTS IN CORDS 4

4.6

PULLEY DIAMETER 4

5 QUALITY ASSURANCE PROVISIONS 4

5.1 COMPLIANCE 45.2 SAMPLING 55.3 RETENTION OF SAMPLES 5

6 TEST AND INSPECTION METHODS 5

7 MARKING AND PACKING 5

7.1 MARKING 57.2 PACKING 5

8 CONTENTS OF DATA PACK 5

APPENDIX A: RELATED DOCUMENTS 7

APPENDIX B: RECORD OF AMENDMENTS 7

APPENDIX C: TECHNICAL REQUIREMENTS TO BE SPECIFIED BY THE ENGINEER 8

APPENDIX D: PULLEY DIAMETERS 9

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This document supersedes AAC Specification 377002, Rev 2

1 SCOPEThis specification details the additions and exceptions to requirements for steel-cordreinforced conveyor belting that complies with the requirements of SANS 1366 latest revision.

All belting shall be manufactured strictly in accordance with SANS 1366 and this specificationshall be read in conjunction with SANS 1366.

2 TECHNICAL REQUIREMENTS TO BE SPECIFIED BY THE ENGINEER

The following requirements shall be specified on every invitation to tender, contract or order:

Title, number, date and issue of this specification.

The class (see SANS 1366 Clause 4.1) The type (see SANS 1366 Clause 4.2)

The length (see SANS 1366 Clause 4.5.1)

The nominal width of the belting (see Clause 4.5.2)

The troughing angle (see SANS 1366 Clause 4.7.3)

Type of covers (see clause 4.5.3)

The cover thickness (see Clause 4.2)

The name of the independent Quality Assurance Representative (see AA STD 100)

The supplier shall complete Appendix C in consultation with the Engineer to confirm technicalrequirements and suitability of the final product.

3 DEFINITIONS

For the purpose of this specification the definitions contained in SANS 1366 and the followingshall apply:

STD : Anglo American Quality Assurance Procedure

SANS : South African National Standard

A lot : A continuous length of belting greater than 150m submitted at any onetime for inspection testing

Length of belt : A section of belt taken from a lot

The following terms are defined in the General Conditions of Contract:

Anglo American, Approved, Company, Contractor, Engineer

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4 REQUIREMENTS

4.1 COVER THICKNESSAND TYPE

Minimum cover thickness shall be in accordance with SANS 1366, Table 1. Where there arespecial requirements for thicker covers, this shall be agreed by the manufacturer and theEngineer and recorded accordingly.

If ancillary equipment, such as belt tear detection devices are to be installed then the beltcover thickness shall be adjusted accordingly.

The belting shall be of the following types:

a) Type F : Belting with a rubber cover that has both fire-retardant and antistaticproperties when tested in accordance with 4.7.4, 4.7.5 and 4.7.6.

Physical properties of rubber covers are given in Table 2.

b) Type A : A belt with rubber covers formulated specifically for abrasion resistanceand with physical properties stipulated in Table 2.

c) Type C : A belt with a rubber cover that is suitable for the conveyance of abrasivematerials under average working conditions.

d) Type N & M : Non-fire retardant belting with covers of varying degrees of cut andgouge resistance as defined by tensile strength and elongation at breakproperties stipulated in Table 2.

4.2 CORD SPACING

The cord spacing and diameter recommended in SANS 1366, Table 1 shall be mandatory forall belts. Variation from this table will only be by concession request.

Cords for belting supplied for a specific conveyor belt installation shall be the same diameterand shall be sourced from one supply.

4.3 WIDTH

The nominal width of the belting shall be specified by the Engineer (see Clause 2.0) and shallbe one of the following widths, in millimetres: 750, 900, 1050, 1200, 1350, 1500, 1650, 1800,2100 and 2400.

4.4 CLASS

The class of belting shall be indicated by the letters St, followed by the breaking strength ofthe belting, in kilonewtons per metre of width and shall comply with the construction as inTable 1 unless otherwise agreed by the manufacturer and purchaser.

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TABLE 1: CLASSES AND CONSTRUCTION

1 2 3 4

ClassThickness of

Covermm, min

Steel Cords

Nominal distance between centres (cord pitch)mm

Cord diametermm, max

St 500 4 20.0 3.6

St 630 4 16.0 3.6

St 800 4 17.0 3.6

St 1 000 4 14.5 4.4

St 1 250 4 12.0 4.4

St 1 400 4 19.0 6.3St 1 600 5 16.0 6.3

St 2 000 5 13.5 6.3

St 2 500 6 15.0 7.4

St 3 150 7 16.0 8.6

St 4 000 8 15.0 9.3

St 5 000 8 17.0 11.5

St 6 000 10 17.0 13.0

4.5 JOINTS IN CORDS

There shall be no join in any cord or in any one length of belt supplied unless agreed byconcession.

4.6 PULLEY DIAMETER

The Contractor shall advise the Company of the minimum pulley diameters which may beused with the conveyor belt (see Appendix D).

5 QUALITY ASSURANCE PROVISIONS

The requirements of AA STD 100 shall apply.

5.1 COMPLIANCE

Compliance with the agreed quality assurance plan will be monitored in the suppliers worksby a client representative and/or independent third party.

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5.2 SAMPLING

5.2.1 One sample for testing in accordance with SANS 1366 to be provided representing eachlength of belt; the first sample shall be at the beginning of the first length and the last sampleshall be at the end of the last length.

5.2.2 Fire retardant tests and trough ability test may be done per lot only.

5.2.3 Each batch of cord received by the manufacturer shall be subjected to a cord breakingstrength test to verify the cord supplier certificate. The test is to be conducted in accordancewith SANS 1366 section 6.6

5.3 RETENTION OF SAMPLES

Samples for dimensional testing as specified in SANS 1366 shall be retained until the belt

has been delivered to the client. In the case of belting for man-riding conveyors, twoadditional strips of 500mm long belting must be retained indefinitely by the manufacturer forpossible future testing.

6 TEST AND INSPECTION METHODS

Tests and inspection methods shall comply with the requirements of SANS 1366.

7 MARKING AND PACKING

7.1 MARKING

Marking shall comply with the requirements of SANS 1366 with the exception that belting is to

be marked on the non-carrying surface where possible. Every 50m of belting shall have aunique mark. The tenderer is required to make some suggestions in this regard

The letters AA shall follow the marking for the class e.g. St 2500 AA.

7.2 PACKING

Packing shall comply with the requirements of SANS 1366. The tenderer should also adviseon suitable procedures for sea and road freight, as applicable. The supplier shall advise onthe correct long-term storage of spare conveyor belting of the selected type.

8 CONTENTS OF DATA PACK

The data pack shall be issued with each belt upon delivery and shall contain the followinginformation:

A copy of the original order

A copy of the factory job-card, containing information relating to the raw material detailssuch as steel cords, bonder rubber and cover rubber.

A copy of the certificate supplied by the steel cord manufacturer and a copy of theresults of the cord strength verification test conducted by the manufacturer.

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A manufacturing plan indicating the amount of rolls and final lengths.

A copy of the belt design, relating to cord diameters used and cord spacing.

Process control checks.

Finished belt measurements, taken at 50m intervals.

Laboratory test results for tests conducted in accordance with SANS 1366, for all beltsamples.

Repair report sheet.

Final inspection report and signed delivery release from factory.

Approved concession requests (where applicable).

Verification by the supplier that the final product is in accordance with clientrequirements and specifications.

In the event of new belting being spliced to existing belting, a splice design approved bythe supplier of the new belting.

In the event of a new installation, a splice design supplied by the manufacturer as wellas a splice plan should more than 2 rolls of belting be supplied. The plan shouldindicate the order of installation of the rolls.

A copy of the complete data pack demonstrating compliance with the requirements ofSANS 1366 shall be delivered with the belt. The master copy shall be kept at the offices ofthe supplier for a minimum period of 10 years. Three hard copies of the data pack to besupplied as well as a copy on CD in a recognisable format.

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APPENDIX A: RELATED DOCUMENTS

AA SPEC 377002: Steel Cord Reinforced Conveyor Belting

The latest issue of the following documents shall form part of this specification.

AA STD 100 : Quality Requirements for Suppliers of Critical and Major Equipment

SANS 1366 : Steel cord reinforced conveyor belting

APPENDIX B: RECORD OF AMENDMENTS

Issue 0 : New document based on AAC 377002 Rev 2; reviewed and updated

(Paul Nel, January 2010)

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APPENDIX C: TECHNICAL REQUIREMENTS TO BE SPECIFIED BY THE ENGINEER

The following requirements shall be specified on every invitation to tender, contract or order:

Title, number, date and issue of this specification

The nominal width of the belt (see Clause 4.5.2)

750 900 1050

1200 1350 1500

1650 1800 2100

2400

Belt class (see SANS 1366 Clause 4.1)

St 500 St 1400 St 4000

St 630 St 1600 St 5000

St 800 St 2000 St 6300

St 1000 St 2500

St 1250 St 3150

The type of covers N M X

N-SB F

The cover thickness (see Clause 4.5.3) Top: mm Bottom mm

The Contractor shall advise the Company of the minimumpulley diameter which may be used with the conveyor belt

High tension mm

Drive mm

Low tension mm

The length required (see SANS 1366 Clause 4.5.1) m

The troughing angle (see SANS 1366 Clause 4.7.3)

The name of the independent Quality Assurance

Representative (see AA STD 100)

AA stock code number (if available)

Engineer For the supplier

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APPENDIX D: PULLEY DIAMETERS

Recommended minimum pulley diameters for use with the classes of belting covered by the standardare in the table below. The use of flat faced (non-crowned) pulleys is recommended.

1 2 3 4

Class

Pulley Diametermm, min

Type A(a) Type B(b) Type C(c)

St 500

St 630

St 800

500

500

500

400

400

400

315

315

315St 1 000

St 1 250

St 1 400

St 1 600

800

800

1 000

1 000

630

630

800

800

500

500

630

630

St 2 000

St 2 500

St 3 500

1 000

1 250

1 250

800

1 000

1 000

630

800

800

St 4 000St 5 000

St 6 300

1 4001 600

2 000

1 2501 400

1 600

1 0001 250

1 400

(a) Pulley Type A High tension type driving pulleys e.g. tandem drive, single drive, head drive andtripper pulleys; high tension type non-driving pulleys

(b) Pulley Type B Low tension type non-driving pulleys e.g. tail, take-up or high tension snub/bendpulleys that have a wrap angle 30.

(c)Pulley Type C Low tension type non-driving pulleys e.g. bend, low tension snub that have a wrapangle 30.

Documents

AA SPEC 377002