Complaint
DIN K ST Steel Cord Fire Resistant Rubber Conveyor Belt
Product Desription
1. Physical Properties of Rubber Cover (DIN22131)
| Grade | Tensile Strength/Mpa ≥ | Breaking Elongation/% ≥ | Abrasion Loss/mm3 ≤ |
| W | 18 | 400 | 90 |
| X | 25 | 450 | 120 |
| Y | 20 | 400 | 150 |
| K | 20 | 400 | 200 |
Rubber of DIN 22131 (K grade) is suitable for flame resistant steel cord conveyor belts.
2. Safety Property
| Item | Fire resistant properties |
| Alcohol burner test | Average value of flame duration of 6 samples without covers, not more than 5s, any single value not more than 15s. |
| Anti-static test | Surface resistance ≤ 3×108Ω |
3. Specification of Steel Cord Conveyor Belt
| Belt type | ST/S 630 | ST/S 800 | ST/S 1000 | ST/S 1250 | ST/S 1600 | ST/S 2000 | ST/S 2500 | ST/S 2800 | ST/S 3150 | ST/S 3500 | ST/S 4000 | ST/S 4500 | ST/S 5000 | ST/S 5400 |
| Min. tensile strength (N/mm) | 630 | 800 | 1000 | 1250 | 1600 | 2000 | 2500 | 2800 | 3150 | 3500 | 4000 | 4500 | 5000 | 5400 |
| Max. diameter of steel cord (mm) | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 | 6.0 | 7.2 | 7.5 | 8.1 | 8.6 | 8.9 | 9.7 | 10.9 | 11.3 |
| Min. Top/Bottom cover thickness (mm) | 5.0 | 5.0 | 6.0 | 6.0 | 6.0 | 8.0 | 8.0 | 8.0 | 8.0 | 8.0 | 8.0 | 8.0 | 8.5 | 9.0 |
| Belt width | Number of steel cord | |||||||||||||
| 800 | 75 | 75 | 63 | 63 | 63 | 63 | 50 | 50 | 50 | 50 | ||||
| 1000 | 95 | 95 | 79 | 79 | 79 | 79 | 64 | 64 | 64 | 64 | 64 | 59 | 55 | 55 |
| 1200 | 113 | 113 | 94 | 94 | 94 | 94 | 76 | 76 | 76 | 77 | 77 | 71 | 66 | 66 |
| 1400 | 133 | 133 | 111 | 111 | 111 | 111 | 89 | 89 | 89 | 90 | 90 | 84 | 78 | 78 |
| 1600 | 151 | 151 | 126 | 126 | 126 | 126 | 101 | 101 | 101 | 104 | 104 | 96 | 90 | 90 |
| 1800 | 171 | 171 | 143 | 143 | 143 | 143 | 114 | 114 | 114 | 117 | 117 | 109 | 102 | 102 |
| 2000 | 196 | 196 | 159 | 159 | 159 | 159 | 128 | 128 | 128 | 130 | 130 | 121 | 113 | 113 |
| 2200 | 216 | 216 | 176 | 176 | 176 | 176 | 141 | 141 | 141 | 144 | 144 | 134 | 125 | 125 |
Application
Massive task steel cord conveyor belt for general use is widely used in coal, mine, port, metallurgy, power, chemical industries and suitable for high strength,long distance and heavy load transportation of materials. The product is excellent for long distance, high abasion, high impact/tensile strength with longer service life, more excellent durability. Its cover grades are GB-L, GB-D, GB-H, and DIN Z, W, Y, X.
| Specification | ST630 | ST800 | ST1000 | ST1250 | ST1600 | ST2000 | ST2500 | ST3150 | ST3500 | ST4000 | ST4500 | ST5000 | ST5400 | ST6300 |
| Tensile Strength (N/mm) | 630 | 800 | 1000 | 1250 | 1600 | 2000 | 2500 | 3150 | 3500 | 4000 | 4500 | 5000 | 5400 | 6300 |
| Max Diameter of Cord(mm) | 3 | 3.5 | 4 | 4.5 | 5 | 6 | 7.5 | 8.1 | 8.6 | 8.9/ | 9.7 | 10.9 | 11.3 | 12.3 |
| Pitch of Cord(mm) | 10 | 10 | 12 | 12 | 12 | 12 | 15 | 15 | 15 | 15 | 16 | 17 | 17 | 18 |
| Top Rubber Cover Thickness (mm) | 5 | 5 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 8.5 | 9 | 10 |
| Bottom Rubber Cover Thickness (mm) | 5 | 5 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 8.5 | 9 | 10 |
| Width (mm) | Cord Number | |||||||||||||
| 800 | 75 | 75 | 63 | 63 | 63 | 63 | 50 | 50 | 50 | |||||
| 1000 | 95 | 95 | 79 | 79 | 79 | 79 | 64 | 64 | 64 | 64 | 59 | 55 | 55 | 54 |
| 1200 | 113 | 113 | 94 | 94 | 94 | 94 | 76 | 76 | 77 | 77 | 71 | 66 | 66 | 63 |
| 1400 | 133 | 133 | 111 | 111 | 111 | 111 | 89 | 89 | 90 | 90 | 84 | 78 | 78 | 74 |
| 1600 | 151 | 151 | 126 | 126 | 126 | 126 | 101 | 101 | 104 | 104 | 96 | 90 | 90 | 85 |
| 1800 | 171 | 143 | 143 | 143 | 143 | 114 | 114 | 117 | 117 | 109 | 102 | 102 | 96 | |
| 2000 | 159 | 159 | 159 | 159 | 128 | 128 | 130 | 130 | 121 | 113 | 113 | 107 | ||
| 2200 | 176 | 141 | 141 | 144 | 144 | 134 | 125 | 125 | 118 | |||||
| 2400 | 193 | 155 | 155 | 157 | 157 | 146 | 137 | 137 | 129 | |||||
| 2600 | 209 | 168 | 168 | 170 | 170 | 159 | 149 | 149 | 140 | |||||
| 2800 | 184 | 184 | 171 | 161 | 161 | |||||||||
| Test items | Property indexes | |||||||
| GB9770-2001 | DIN22131 | |||||||
| D | H | L | P | W | X | Y | ||
| Tensile strength | Mpa >= | 18 | 25 | 20 | 14 | 18 | 25 | 20 |
| Pull to break the elongation rate | % >= | 400 | 450 | 400 | 350 | 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 | -25~+25 | -25~+25 |
| Abrasion | <= | 90MM 3 | 120MM 3 | 150MM 3 | 200MM 3 | 90MM 3 | 120MM 3 | 150mm 3 |
