It is a machine that uses the motor to drive the spiral rotation and push the material to realize the transportation purpose. It has a simple structure and a small cross-sectional area, which is convenient for closed transportation. It is an ideal equipment for conveying all kinds of powders, granules and blocks (such as food, pharmaceutical, coal, chemical products, food crops, minerals, etc.). Shell form: "O" type or "U" type; the drainage end can be designed with drainage device; CIP cleaning device can be designed; stepless speed regulation is adopted; convenient connection.