Steel cord conveyor belts (ST) can convey bulk materials on long distances, under extremely difficult conditions. They are used primarily in the mining industry (quarries) to convey raw materials from the excavators to the discharge site, but they are also used in other fields of activity. A wide range of cover qualities is available.
General characteristics of steel conveyor belts
| STEADFAST STANDARD | DIN QUALITY | TENSILE STRENGTH | ELONGATION AT BREAK | ABRASION LOSS | BASE POLYMER | TECHNICAL FEATURES APPLICATION AREA |
| Abrasion resistant | DIN W DIN X | 180 250 | 400 450 | 90 120 | NR/SBR NR | Abrasion resistant covers provide a very high level of abrasion and cut and tear resistance. |
| General use | DIN Y | 200 | 400 | 150 | SBR | Used for general use applications with superior resistance to abrasion, weather and cuts. |
| Fire resistant | K | 200 | 400 | 200 | SBR/NR NBR | Fire resistant covers offer great protection in explosion hazardous sites. |
General characteristics of steel conveyor belts
| Specification | ST800 | ST1000 | ST1250 | ST1600 | ST2000 | ST2150 | ST3000 | ST4000 |
| Cord diameter (mm) | 3.85 | 3.85 | 4.5 | 5.85 | 5.85 | 7.0 | 8.0 | 9.0 |
| Cord pitch (mm) | 15 | 12 | 14 | 15 | 12 | 15 | 15 | 15 |
| Covers thickness (mm, min) | 4 | 4 | 4 | 4 | 4 | 5 | 5.5 | 6.5 |
| Belt thickness (mm) | On customer demand |
| Cord breaking force (Kn, min) | 13.2 | 13.2 | 19.2 | 26.4 | 26.4 | 41.2 | 52 | 66 |
| Adhesion rubber / cord (N/mm, min) | 70 | 70 | 85 | 85 | 85 | 100 | 110 | 125 |
| Width | Deviation | Number of Cords |
| 650 | ± 7 | 42 | 51 | 44 | 40 | 51 | 40 | 40 | 40 |
| 800 | ± 8 | 52 | 64 | 55 | 50 | 64 | 50 | 50 | 50 |
| 1000 | ± 10 | 65 | 81 | 69 | 64 | 81 | 64 | 64 | 64 |
| 1200 | ± 10 | 78 | 97 | 84 | 77 | 97 | 77 | 77 | 77 |
| 1400 | ± 12 | 90 | 114 | 98 | 90 | 114 | 90 | 90 | 90 |
| 1600 | ± 12 | 104 | 131 | 112 | 104 | 131 | 104 | 104 | 104 |
| 1800 | ± 14 | 117 | 147 | 127 | 117 | 147 | 117 | 117 | 117 |
| 2000 | ± 14 | 130 | 164 | 141 | 130 | 164 | 130 | 130 | 130 |