Lm Description Description: rotating spiral blade for screw conveyor passage of the material transported, so that the material does not rotate together with the screw conveyor blades is the material force of its own weight and the frictional resistance of the material conveyor chassis. Rotating shaft screw conveyor spiral welded blades, blade face delivery of materials based on a solid surface different type, belt type face, leaves and other types of face. Screw conveyor screw axis in the direction of movement of the material with the thrust bearing to the terminal with the material to spiral axial reaction force, the captain longer, should be added to intermediate hanger bearings.