Xi'an spiral tower conveyor is commonly known as auger. The screw conveyor uses the rotating spiral blades to move the material to the screw conveyor. The force that the material does not rotate with the screw conveyor blade is the material's own weight and the frictional resistance of the screw conveyor casing to the material. Spiral blades welded on the rotating shaft of the screw conveyor. The surface shapes of the blades are solid surface type, belt surface type, blade surface type, etc. according to the different materials being conveyed. The screw shaft of the screw conveyor has a thrust bearing at the end of the material moving direction to give the screw the axial axial reaction force with the material. When the machine length is long, an intermediate hanging bearing should be added. It is a widely used conveying equipment in the mineral, feed, grain and oil, and construction industries. It is made of steel and is used to convey high temperature powder or solid particles and other chemical and building materials products.