... us ,we can produce the best machinery for you. One, LS spiral screw conveyor novel structure, technical index is advanced, the ... grain, fertilizer, ash, sand etc, material temperature 200 degrees Celsius.LS spiral screw conveyor is unfavorable conveying easy metamorphism, big viscosity ... , and make the spiral machine can't work normally.LS spiral screw conveyor spiral diameter from 200 mm to 500 ...