(Screw conveyors provide mechanical transportation of bulk materials in the form of powder or granule. It is also called an auger conveyor, spiral conveyor, screw conveyor. With a screw conveyor, the material is moved in a linear line between two predetermined points. Screw feeders and conveyors vary depending on the application. In industrial applications, the design of a screw conveyor changes depending on various variables such as the characteristics of the raw material to be conveyed, the capacity and the distance. The spiral diameter, spiral structure, inlet and outlet openings, bearings, motor powers are selected according to the application).