... .4.Manufacturer.conveyor system: Technical parameters :(unit:mm)Conveyor belt width: 200-1200Conveyor length: 1000-12000Conveyor material: carbon steel ... produce various automatic conveyors, such as assembly line, packing line,belt conveyor, top-chain conveyor, slat conveyor, elevated conveyor, ... powered drum is called "drive drum" while the unpowered pulley is called the idler (or tail drum).It can be ...