a) 3rd Floor Warehouse Unloading Belt Conveyor, Loading & Unloading Cargo Chute, 4th Floor Cargo Conveyor. Goods move forward by friction between powered rollers and cargo. It can transport goods horizontally, and also incline upward under certain conditions. Based on working purposes, this type of conveyor is divided into process conveyor and handling conveyor.

b) The drive unit of roller conveyor can be traction type or mechanical transmission type, depending on conveyor type and drive method. Traction components for traction drives include chain, belt or rope. Rigid mechanical transmission drives are generally used for heavy loads.

c) 3rd Floor Cargo Belt Conveyor, Loading & Unloading Conveyor Belt, Warehouse Material Handling Equipment. Gear transmission is widely used. It can be single-drive or group-drive. Single-drive features easy start-up, convenient installation and maintenance, but with higher cost. Powered roller diameter: 100–300 mm, up to 600 mm for extra heavy duty. Roller length is 100–200 mm wider than cargo width.