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Roller Conveyors are basically Rollers mounted on supporting frame at specific spacing. Roller Conveyors may be of Gravity type or Powerised. Gravity conveyors are mounted at some degree declined to generate movement of load by gravitational force component. This is practical for short distance conveying. It is also customary to keep conveyor horizontal for longer distances or where many operations are to be carried out on the article being carried. In such case the article is pushed as required. Powerised Roller conveyors are imparted movement by electric motor, pneumatic motors or hydraulic motors through gear reducers and chain drive. For large rollers with heavy applications each roller is having individual drive system. Roller Conveyors have small to large diameter and width to suit the requirement. Also Expandable Roller Conveyors are available in which conveyor length can be adjusted as required. It may be noted that the bottom of the material should be fairly flat and even so that it can ride over the roller smoothly. |