... Screw Feeder of Small Type 1.screw diameter 160mm 2.Load Capacity: 8cbm/h 3.Motor Power: 0.75-1.5KW New Design ... and Best Price Spiral Feeder Applications 1) widely used in building materials, electric power, chemical industry metallurgy, coal, machinery, and light ... convey powder, granular and small block materials, such as cement, coal, grain, chemical fertilizer, ash, sand, etc. note work environment ...