Idler is an important component of belt conveyors, with a wide variety and large quantity, which can support the weight of conveyor belts and materials. It accounts for 35% of the total cost of a belt conveyor and generates over 70% of the resistance, so the quality of the rollers is particularly important. It comes in two types: steel and plastic. Although the roller is a small component in a belt conveyor and its structure is not complex, manufacturing high-quality rollers is not an easy task.

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