A screw conveyor is a special type of conveyor that is designed to transport material, especially granular, powdered or chipped material and sawdust, from one place to another. This type of conveyor consists of an enclosed tube or cylindrical housing, inside which is a spiral screw.

The conveyor works on the principle of rotation of the screw inside the housing, which moves the material along the length of the conveyor. The speed of the material can be adjusted according to the speed of the auger, which allows precise dosing. Due to its design, this conveyor is able to transport materials both horizontally and vertically. It is also resistant to deposits and dirt, making it suitable for working in harsh operating conditions. Screw conveyors are generally regarded as efficient and reliable, and are widely used in various industries such as agriculture, timber, construction, mining, food processing or chemical industries.