Conveyors are used when material is to be moved frequently between particular points over a fixed path and when there is a sufficient flow volume to justify the fixed conveyor investment.[4] Different types of conveyors can be seen as a the kind of product being dealt with: unit load or bulk load; the conveyor’s area: in-floor, on-floor, or overhead, and whether loads can accumulate on the conveyor. Accumulation planetary gearbox allows intermittent movement of every unit of material transported along the conveyor, while all devices move simultaneously on conveyors without accumulation capability.[5] For example, while both roller and flat-belt are unit-load on-floor conveyors, the roller provides accumulation capability while the flat-belt will not; similarly, both the power-and-totally free and trolley are unit-load overhead conveyors, with the power-and-free made to include a supplementary track to be able to provide the accumulation capability lacking in the trolley conveyor. Types of bulk-handling conveyors are the magnetic-belt, troughed-belt, bucket, and screw conveyors. A sortation conveyor program is used for merging, identifying, inducting, and separating items to end up being conveyed to specific destinations, and typically includes flat-belt, roller, and chute conveyor segments as well as various moveable hands and/or pop-up tires and chains that deflect, push, or pull products to different destinations.[6]