1. It applies to wheat, paddy, corn, pea beans, sorghum, beans, pulses, sunflower seed etc. 2. Remove dust, chaff, straw, injured seed, sprout seed, month seed, mildew grain and other light impurities in one time. 3. High Purity, Mildew rate less than 2%. 4. Large Capacity: 30-50t/h. 5. High Screening Rate: Double Screen Box Structure. 6. Double Air Screen, Double Cyclone. 7. Environmental, Closed Structure, Double Screw Cyclone. 8. Energy Consumption. 9. Stable and Reliable, Advances Swiss Technology.