Chain conveyors use an endless chain both to transmit power and to propel material through a trough, either pushed directly by the chain or by attachments to the chain. The chain runs over sprockets at either end of the trough.

Chain conveyor is composed of motor, reducer, transmission shaft, tensioning device, sprocket, chain, bearing, chain plate, metal plate, etc.,and sometimes a belt conveyor may be attached. The structure that makes the material move is a chain and a metal plate.