The spiral hoister is a kind of machine, in which the motor drives the spiral to operate and move the materials so as to realize the purpose of conveying. It has such advantages as simple structure, small sectional area and convenient closed transportation.It is an ideal device for conveying various powders, granules and blocks (such as food, pharmacy, coal, chemical products, foodstuffs and mine etc.). The inlet can be designed with water discharging device; CIP cleaning device can be designed; Stepless speed adjustment is adopted; Convenient for online operation