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An endless conveyor belt is a type of conveyor belt processed into a jointless ring shape during manufacturing. Its core advantage stems from the unique jointless design. It is usually made by processing a flat conveyor belt through vulcanized joints (also known as hot bonding), with no joints in the belt core, avoiding the problem that joints of traditional conveyor belts are prone to premature failure. Therefore, the belt body does not need to be shortened during its service life.

As the core load-bearing component of belt conveyors, Conveyor Idler Rollers are widely used in mining, ports, warehousing, and other fields.

EP conveyor belts are industrial conveyor belts made with Ethylene Propylene Rubber (EPR, commonly abbreviated as EP rubber) as the cover rubber and canvas (e.g., nylon canvas, polyester canvas) or steel cords as the carcass material.

As a core load-bearing component of belt conveyors, the assembly quality of idler rollers directly determines the operational efficiency, energy consumption, and safety of the conveyor system.

As the "backbone" of belt conveyors, idler rollers play a core role in bearing the weight of the conveyor belt and reducing operational friction.

Under the action of vulcanization pressure and temperature, the root cause of bubbling in vulcanized conveyor belt joints lies in trapped air, residual volatiles, or poor interlayer bonding.