Steel Cord Conveyor Belt
Special Features
•The smaller elongation for steel mesh belt reduces the length of take-up.
•Excellent adhesion between steel mesh and cover rubber to resist flex fatigue and impact.
•Single carcass reinforcement has much better flexibility.
•Steel mesh belt offers superior resistance to the repeated impacts.
•Easy splicing by finger type vulcanizing joint.
The special design of steel mesh conveyor belt consists of brass-coated steel cords in both warp and filling directions. This steel mesh conveyor belt was developed to solve the problem with longitudinal cutting, tearing in conventional steel cord belt.
| Belt strength (st-NO.) | Cord diam D (mm) | Composition | pitch P (mm) | Shandard Working Tension (N/mm) | Standard cover Thicknesst1t2(mm) | Belt Weight (kg20.0/m2) | Min.pulley Dam.(mm) | strength KN/piece |
| St-630 | 3.0 | 6×7+IWS | 10 | 90 | 5×5 | 20.0 | 800 | 6.93 |
| St-800 | 3.5 | 6×7+IWS | 10 | 110 | 5×5 | 20.6 | 800 | 8.8 |
| St-1000 | 4.0 | 6×7+IWS | 12 | 140 | 6×6 | 24.7 | 800 | 13.2 |
| St-1250 | 4.5 | 6×7+IWS | 12 | 175 | 6×6 | 25.4 | 800 | 16.5 |
| St-1600 | 5.0 | 6×19+IWS | 12 | 225 | 6×6 | 26.0 | 1000 | 21.12 |
| St-2000 | 6.0 | 6×19+IWS | 12 | 285 | 8×6 | 30.0 | 1000 | 26.4 |
| St-2500 | 7.5 | 6×19W+IWS | 15 | 355 | 8×6 | 32.2 | 1250 | 41.25 |
| St-3150 | 8.1 | 6×19W+IWS | 15 | 450 | 8×8 | 35.7 | 1400 | 51.98 |
| St-4000 | 9.1 | 6×19W+IWS | 17 | 570 | 8×8 | 37.8 | 1600 | 74.8 |
| St-4500 | 9.7 | 6×19W+IWS | 16 | 645 | 8×8 | 38.7 | 1800 | 79.2 |
| St-5000 | 10.9 | 6×19W+IWS | 17 | 715 | 8.5×8.5 | 41.9 | 1800 | 93.5 |
| St-5400 | 11.3 | 6×19W+IWS | 17 | 760 | 9×9 | 43.9 | 2000 | 101 |
| St-6300 | 12.3 | 6×19W+IWS | 18 | 900 | 10×10 | 48.3 | 2000 | 124.74 |
Mumber of steel cords:
| (mm) Belt width | St630 | St800 | St1000 | St1250 | St1600 | St2000 | St2500 | St3150 | St4000 | St4500 | St5000 | St5400 | St6300 |
| 800 | 75 | 75 | 63 | 63 | 63 | 63 | 50 | 50 |
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| 1000 | 95 | 95 | 79 | 79 | 79 | 79 | 64 | 64 | 56 | 60 | 56 | 56 | 52 |
| 1200 | 113 | 113 | 94 | 94 | 94 | 94 | 76 | 76 | 68 | 72 | 68 | 68 | 63 |
| 1400 | 133 | 133 | 111 | 111 | 111 | 111 | 89 | 89 | 79 | 84 | 79 | 79 | 74 |
| 1600 | 151 | 151 | 126 | 126 | 126 | 126 | 101 | 101 | 91 | 96 | 91 | 91 | 85 |
| 1800 |
| 171 | 143 | 143 | 143 | 143 | 114 | 114 | 103 | 107 | 103 | 103 | 96 |
| 2000 |
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| 159 | 159 | 159 | 159 | 128 | 128 | 114 | 120 | 114 | 114 | 107 |
| 2200 |
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| 176 | 141 | 141 | 125 | 133 | 125 | 125 | 118 |
| 2400 |
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| 193 | 155 | 155 | 137 | 146 | 137 | 139 | 129 |
Cover rubber property and grades
| Test items | Property indexes | |||||
| GB9770-88 | DIN22131-88 | |||||
| H Grade
Heavy | M Grade
Medium | W Grade
W | X Grade
X | | Y Grade
Y | |
| Tdnsile strength | Mpa≥ | 17.65 | 13.73 | 18 | 25 | 20 |
| %≥ | 450 | 400 | 400 | 450 | 400 | |
| after aging(70°C, 7D) Change rate of tensile strength Change rate of elongation | % | -25~+25 | -25~+25 | -25~+25 | -25~+25 | -25~+25 |
| Abrasion | ≤ | 0.6cm3/1.61km | 0.8cm3/1.61km | 90mm3 | 120mm3 | 150mm3 |
ADHESION OF STEEL CORD
| strength | St630 | St800 | St1000 | St1250 | St1600 | St2000 | St2500 | St3150 | St4000 | St4500 | St5000 | St5400 | St6300 |
| Adhesion N/mm GB9770- 88 | 54 | 60 | 64 | 69 | 74 | 84 | 98 | 108 | |||||
| Adhesion N/mm DIN22131- 88 | 60 | 70 | 80 | 95 | 105 | 105 | 130 | 140 | 145 | 150 | 165 | 175 | 180 |