LS series screw conveyor for grain Loose powder material on the level ... equipment which in the use of mineral, feed, grain and oil, the construction industry and so on, ... flour, fertilizer, coal off, grain, ore, feed, pulp and other materials, suitable for horizontal or inclined conveying powder, ... than 200 °C. Spiral conveyor is not suitable for perishable, viscous, easy caking materials. Feature of ...