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Product Reference
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3) Technical Specifications
Process Parameters
  • Material Properties: Nickel Ore
  • Take Up Type: Gravity
  • Take Up Mass (Kg): 12000Kgs
  • Tonnage (t/h): 500
  • Maximum Lump Size(mm): 400 x 550 x 200
  • Conveyore Ore: Lumps
  • Material Profile: Flat

EP 1250/4 10 + 3mm 1050 mm width 

Grade of Cover SCGR

Comes with steel breaker top cover

1) Introduction

Rexline Engineering had supplied Operations with Steel Breaker Belt in July 2018.

This belt was proposed to by Rexline Engineering Technical Team after conducting site audit at request. As part of its re-initiation of operations, all its conveyor systems were audited to identify issues. During the extensive survey of the Site, Rexline Engineering identified issues with the current conveyor belt that it uses against the parameters of operation at site.

Upon approval, Rexline Engineering got its factory to exclusively manufacture and supply this belt for.

Rexline Engineering with its technical expertise in the conveyor industry manufactured the belt to specifications and supplied to on schedule.

2) Case Study

As per Audit conducted by Rexline Engineering on Site, the Site Engineers identified the issues pertaining to the existing conveyor belt. Most sections of the belt are worn out along the length of the belt. Also, there are areas where cuts and gouge have been observed.

Rexline Engineering has identified various factors that led to the belt being cut and gouge. The Rollers used on the conveyor system was way past its service life and required urgent replacements. This led to the belt not being conveyed as required and tracking of the belt.

The Belt Currently in place was not rated for Super Cut and Gouge Resistance. Furthermore, the Belt was only rated for 800/4 Ply Rating with only Fabric Ply as its setup

Rexline Engineering Proposed a SCGR Belt with Steel Breaker along with Higher rating catering to existing conveying tonnage rates.

Also, Rexline Engineering supplied the splice kit necessary on site for splicing of the belt.
Super Cut and Gouge Resistance (SCGR) delivers superior resistance to heavy impacts, abrasion and gouging. Super Cut and Gouge Resistance (SCGR) rubber cover compound provides high end performance in applications where increased resistance to heavy impacts, abrasion and gouging is required in Nickel Operations.

Benefits of High Tensile engineered reinforcement on the top cover:
The Super Cut and Gouge Resistance (SCGR) Belt that we offered is equipped with High Tensile engineered reinforcement on the top cover to provide efficient protection. This High Tensile engineered reinforcement on the top cover provides extra impact and rip protection for the belt and potentially allow smaller pulley diameters, serving as the basis for a longer service life and a lower risk of severe damage.

 Technical Data Sheet
1.1Width of beltmm+/-1%
1.2Tolerance in belt lengthm+/-2.5%
1.3Belt edge cut
1.4Total thicknessmm21.1+/-0.5
1.5Cover thickness  
1.5.1Top covermm10+/-0.5
1.5.2Bottom covermm3+/-0.5
1.6Belt weightkg/m~28.14
2Rubber cover  
2.1Specific gravityg/cm31.15+/-0.05
2.2Tensile strengthn/mm2min.18
2.3Ultimate elongation%Min.400
2.4Tensile strength after 70° C x 168hn/mm2Min.200
2.5Ultimate elongation after aging 70° C x 168h%Min.200
2.7Abrasion resistancemm3Max.90
2.8Hardnessshore A65+/-5
2.9aTearing resistancen/mmMin.12
2.9bOzone resistance69h 50pphmNo crack
3.1Top cover to plyn//mm7
3.2Bottom cover to plyn/mm7
3.3Ply to plyn/mm7
4Full belt elongation  
4.1At 10% reference load%Max.2.5
4.2At breaking%Min.14
5Trough ability at 40° troughed idlers0.160.16
7Full belt tensile strengthn/mmmin.1250
8Steel breaker Top
8.1Cord diametermm1
8.2Cord pitchmm10
Testing Conducted
  • Test Type: Thickness of belt
  • Test Standard: AS 1334.2 Determination of thickness of belting and rubber covers across the width
  • Required properties: Meet the requirements of AS12-2000 clause 5.3 Tolerance on thickness of belting across width
  • Sample ID: AWBH18157
  • Note 1:
  • Discussion: Pass
PropertyAWBH18157Minimum requirements AS 1332-2000
Minimum thickness of belt (mm)21.1 
Maximum thickness of belt (mm)22.1 
Maximum difference between any two measurement of thickness of belt (%)1.0AS 1332-2000 CI 5.3 Thickness of belt >10 variation 1.1 max variation
  • Test Type: Tensile strength and elongation of full thickness belt
  • Test Type: AS 134.4 Determination of full thickness tensile strength and elongation of conveyor belting
  • Required Properties:
    1. Meet the requirements of AS 1332-2000 clause 6.1 tensile strength of belt carcass
    2. Meet the requirements of AS 1332-2000 clause 6.2 elongation of belting
  • Sample ID: AWBH1857
  • Note 1:
  • Discussion: Pass
PropertyAWBH18157Minimum requirements
AS 12-2000
Average longitudinal tensile (kn/m)1320AS 1322-2000 CI 6.1
1250 kn/m minimum
Longitudinal elongation at 10% of the tensile strength as appropriate to the2.0AS 132-2000 CI 6.2
4% max elongation
Longitudinal elongation at breakpoint (%)22.1AS 132-2000 CI 6.2
10% minimum
Average transverse tensile strength (kn/m)408AS 1332-200CI 6.2
Specified by purchaser
Transvers elongation at break point (%)26.7AS 1332-2000 CI 6.2
10% Minium
  • Test Type: Cover and ply adhesion
  • Test Standard: AS 1334.7- Determination of ply adhesion of belting- longitudinal direction
  • Required Properties: Meet the requirements of As 1332-2000 clause 6.6 cover and ply adhesion.
  • Sample ID: AWBH18157
  • Note 1:
  • Discussion: pass
PropertyAWBH18157Minimum requirements
AS 132-2000
Ply adhesion Carry-Ply 1-Top Cover (kn/m)9.8AS 132 CL 6.6 Cover to ply 4.3 kn/m mean
Ply adhesion Carry-Ply 2 (kn/m)9.0AS 132 CL 6.6 Adjacent plies 5.3 kn/m mean
Ply adhesion Carry-Ply 3 (kn/m)9.1
Ply adhesion Carry-Ply 4 (kn/m)8.7
Ply Adhesion Ply 4- Bottom cover (kn/m)6.0AS 132 CL 6.6 Cover to ply 4.3 kn/m mean
4) Project Benefits Review
  • The beltis currently in operation since it has been installed in October 2018. 
  • Previous service life of the beltis 6 Months
  • Expected service Life of RexConveyOre Belt: 12 Months
COSTReplacement and Maintenance costs of these belts was reduced by 40% considering for a year’s worth of service life.