Heat resistant conveyor belts use specially formulated EPDM (ethylene-propylene-diene monomer) or SBR-EPDM blend compounds that maintain mechanical properties at sustained elevated temperatures. Standard SBR rubber softens and degrades above 60°C — heat resistant grades provide reliable performance at continuous temperatures up to 200°C.
| Parameter | T1 Grade | T2 Grade | T3 Grade |
|---|---|---|---|
| Max continuous temperature | 100°C | 150°C | 200°C |
| Max peak temperature | 120°C | 180°C | 240°C |
| Cover compound | SBR/NR blend | EPDM | EPDM (high grade) |
| Tensile strength | 10 MPa | 10 MPa | 10 MPa |
| Elongation at break | 350% | 350% | 350% |
| Abrasion loss (DIN 53516) | 250 mm³ | 250 mm³ | 250 mm³ |
| Carcass options | EP or ST | EP or ST | EP or ST |
| Belt widths | 300-2,000mm | ||
| Top cover thickness | 5-10mm | 6-12mm | 8-15mm |
| Standard compliance | DIN 22102, ISO 22721 | ||
| Application | Material Temperature | Required Grade |
|---|---|---|
| Warm foundry sand | 60-80°C | T1 |
| Hot sand / aggregate drying | 80-110°C | T1 or T2 |
| Cement clinker cooler discharge | 80-150°C | T2 |
| Cement clinker kiln outlet | 150-250°C | T2 or T3 |
| Iron ore sinter | 150-200°C | T2 or T3 |
| Hot coke | 150-250°C | T2 or T3 |
| DRI (direct reduced iron) | 150-200°C | T3 |
Always measure actual material temperature at the belt loading point with an infrared thermometer before specifying grade. Belt surface temperature is typically 20-30°C lower than material temperature due to insulation effect of the material layer. We recommend measuring 5 representative loads and using the maximum as your design temperature. When in doubt, specify one grade higher — the cost difference is small vs the cost of premature belt failure.
Send us your conveyor dimensions, material type, and capacity. We will provide a detailed specification and competitive price within 24 hours.
Request Quotation → 💬 WhatsApp Now