Roller is the main part of belt conveyor is used for bearing conveyor belt, reduce the running resistance, and makes the conveyor belt sag does not exceed the prescribed limits, ensure smooth running of belt conveyor is widely used in coal mine, metallurgy, building materials industries such as various types of belt conveyor.Trough idlers commonly known as the trough roller;English name: trough idler.The grooved roller is divided into various grooved roller group;Grooved roller according to the material into rubber roller, ceramic roller, nylon roller roller and insulation.Grooved roller has a normal roller, forward type roller, quick change type bearing roller, hanging roller, three roller chain, reversible roller type, variable groove Angle roller, transitional rollers, v-shaped roller, etc.;Parallel rollers are ordinary type roller, brush roller, forward type roller, plastic steel roller type, spiral type roller, etc.;Self-aligning roller is universal, friction reversing type roller, strong type roller, taper roller, screw type roller of roller, combination, etc.;Buffer roller has a spring plate roller, buffer roller, buffer roller, adjustable elastic roller, hanging roller, etc.Our company USES the international standard design, manufacture technology, the roller design and manufacture to a higher level, the rotation of the production of roller has the least resistance, long life, small maintenance workload and high bearing capacity.