Screw conveyors are used to convey bulk material from almost any position (vertical, horizontal, or at an incline) and are one ofthe most reliable methods of conveyance. The screw conveyor is composed ofa pipe with a welded steel strip that is formed into a continuous helix. The helix is referred to as the flighting. The distance along the pipe from one point on the flighting to the next similar point is called the “pitch.” Couplings and shafts refer to the mechanisms by which two screw conveyors are joined. The screw conveyor may be housed in a “tube” or “trough.” The tube is a hollow cylinder, whereas the trough has a “U” shape profile, hence the term “U-trough” augers. Hangers are used to provide support and maintain alignment ofthe screw conveyor.