Full definition
A conveyor belt with specially formulated rubber covers that maintain integrity when transporting hot materials such as cement clinker, coke, foundry sand, sinter, hot slag, and asphalt. Temperature grades per ISO 4195: T1 (resistant up to 100°C continuous), T2 (125°C), T3 (150°C), T4 (200°C). DIN 22102 uses the same classification. Compound formulations: EPDM or SBR/BR blends with heat-stabilizing additives. Carcass: EP fabric with heat-resistant adhesion system; bonding between plies is the weakest link at elevated temperatures. Testing: accelerated aging at specified temperature for 168 hours, measuring hardness change, tensile loss, and elongation change. Top cover thickness: typically 4-8 mm to act as thermal insulator for the carcass. For temperatures above 200°C, materials must be cooled before belt contact or special ceramic-fiber intermediate layers are used. Applications: cement plants, steel mills, power plants, foundries. Per ISO 4195 and DIN 22102.