... price 3. high technology 4. less maintenance Screw Conveyor1. characteristics Screw conveyor novel structure, technical index is advanced, the ... , ash, sand etc, material temperature 200 degrees Celsius. Screw conveyor is unfavorable conveying easy metamorphism, big viscosity, easy ... oil driver.C2 polycot - spiral machine than 35m, double end driver.According to the spiral machine middle shaft ...