Product Introduction

• • Features and Applications: Heat-resistant conveyor belts consist of a multi-layer core made of canvas materials such as polyester-cotton or polyester, along with a cover rubber that exhibits certain heat-resistant properties. They are widely used for conveying hot materials in industries including metallurgy, building materials, coke production, casting, and chemical engineering.

    Heat-resistant conveyor belts are classified into four grades according to different test temperatures:

    T1—Test temperature not exceeding 100℃.

    T2—Test temperature not exceeding 125℃.

    T3—Test temperature not exceeding 150℃.

    T4—Test temperature not exceeding 180℃.

    Standard: GB/T 20021-2017 “Heat-Resistant Conveyor Belt with Canvas Core”

    Main Performance and Specifications

    Physical Properties of Heat-Resistant Coatings
    		T1	T2	T3	T4
    	Permissible deviation range	Allowable range of variation
    Hardness	Difference between post-aging and pre-aging (IRHD)	+20	+20	±20	±20
    	Maximum value after aging (IRHD)	85	85	85	85
    Tensile strength	Performance Change Rate / %	-25	-30	-40	-40
    	Minimum value after aging /MPa	12	10	5	5
    Elongation at break	Rate of change after aging / %	-50	-50	-55	-55
    	Minimum value after aging / %	200	200	180	180