Features: high tensile strength, good impact resistance, long life, low elongation in use, good groove formation, and good bending resistance. Suitable for long-distance, large-volume, and high-speed transportation of materials. The product is composed of core rubber, steel wire mesh, covering layer and edge rubber.
Uses: Widely used in coal, mines, ports, metallurgy, electric power, chemical industries and other fields to transport materials.
Variety: According to the performance of the covering rubber, it can be divided into: ordinary type, flame retardant type, heat-resistant type, cold-resistant type, acid-base resistant type, oil-resistant type and other varieties.
Implementation standards and main indicators of steel cord conveyor belts
Variety | Standards and main indicators |
Normal type | GB/T5753-2008 |
Flame-retardant | MT668-1997 |
General flame retardancy | GB/T10822-2003 |
Heat-resistant type | HG2297-92 |
Anti-wear type | Shaoboer wear volume ≤90mm³ |
Acid, alkali and oil resistant type | HG/T3782-2005 |
Hardy type | HG/T3647-1999 brittleness temperature -40℃ |
Level code | Tensile strength, Mpa≥ | Elongation at break ≥ | Loss amount, mmm³≤ |
D | 18 | 400 | 90 |
H | 25 | 450 | 120 |
L | 20 | 400 | 150 |
P | 14 | 350 | 200 |
Note: D- under strong abrasion working conditions; H- under strong scratching working conditions; L- under general working conditions; P- oil-resistant, acid-base, cold-resistant and generally flame-resistant conveyor belts. |
Project | St630 | St830 | St1000 | St1250 | St1600 | St2000 | St2500 | St3150 | St3500 | St4000 | St4500 | St5000 | St5400 |
Longitudinal tensile strengthN/mm) | 630 | 800 | 1000 | 1250 | 1600 | 2000 | 2500 | 3150 | 3500 | 4000 | 4500 | 5000 | 5400 |
Maximum diameter of wire rope (mm) | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 | 6.0 | 7.2 | 8.1 | 8.6 | 8.9 | 9.7 | 10.9 | 11.3 |
Wire rope spacing (mm) | 10±1.5 | 10±1.5 | 12±1.5 | 12±1.5 | 10±1.5 | 12±1.5 | 15±1.5 | 15±1.5 | 15±1.5 | 15±1.5 | 16±1.5 | 17±1.5 | 17±1.5 |
Thickness of upper cover layer (mm) | 5 | 5 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 8.5 | 9 |
Thickness of lower cover layer (mm) | 5 | 5 | 6 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 8 | 8.5 | 9 |
Width specification mm | Number of wire rope | ||||||||||||
St630 | St830 | St1000 | St1250 | St1600 | St2000 | St2500 | St3150 | St3500 | St4000 | St4500 | St5000 | St5400 | |
800 | 75 | 75 | 63 | 63 | 63 | 63 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
1000 | 95 | 95 | 79 | 79 | 79 | 79 | 64 | 64 | 64 | 64 | 59 | 55 | 55 |
1200 | 113 | 113 | 94 | 94 | 94 | 94 | 76 | 76 | 77 | 77 | 71 | 66 | 66 |
1400 | 133 | 133 | 111 | 111 | 111 | 111 | 89 | 89 | 90 | 90 | 84 | 78 | 78 |
1600 | 151 | 151 | 126 | 126 | 126 | 126 | 101 | 101 | 104 | 104 | 96 | 90 | 90 |
1800 | 171 | 143 | 143 | 143 | 143 | 114 | 114 | 117 | 117 | 109 | 102 | 102 | |
2000 | 159 | 159 | 159 | 159 | 128 | 128 | 130 | 130 | 120 | 113 | 113 | ||
2200 | 176 | 141 | 141 | 144 | 144 | 134 | 125 | 125 | |||||
2400 | 192 | 155 | 155 | 157 | 157 | 146 | 137 | 137 | |||||
2600 | 209 | 168 | 168 | 170 | 170 | 159 | 149 | 149 | |||||
2800 | 194 | 194 | 171 | 161 | 161 |