There are several types of Powered Conveyor Systems. Any conveyor that is powered by a mechanical device that moves materials or products along a conveyor line, other than by gravity or by manually pushing the payload, is a powered conveyor. Power Conveyors are typically roller conveyors (and are also referred as “live roller conveyors”) that use motor powered rollers to move the payload. The conveyor rollers are powered by  chains depending on the load.