The chain plate conveyor is a transmission device with a standard chain plate as the load-bearing surface and a motor reducer as the power transmission. The chain plate conveyor is composed of a power unit (motor), a transmission shaft, a roller, a tensioning device, a sprocket, a chain, a bearing, a lubricant, a chain plate, etc. The two main parts that drive materials are: the chain, which uses its cyclic and reciprocating motion to provide traction power; and the metal plate, which serves as the carrier during the transportation process. By running multiple rows of chain plates in parallel, the chain conveyor can be made very wide and form a differential speed. The speed difference of the multiple rows of chain plates can be used to convert multi-row conveying into single-row conveying without squeezing.