
It uses the motor to drive the spiral shaft to rotate and push the material to realize the purpose of conveying. Screw conveyor with axis is suitable for non-sticky dry powder and small particulate matter. When the spiral shaft rotates, the gravity of the material and the friction between the material and the groove wall cause the material to move forward along the groove bottom of the conveyor under the push of the blade. Shaft-free spiral feeder is suitable for easily wound materials.