Ultrafine mill is formed by coarse grinder, secondary grinder and pneumatic conveyor. Grinding process is reached through high speed of impact; the wind energy powder making process replaces the traditional filtering process. These mills are widely used in industries like: chemical engineering, plumbago, rubber, pharmacy, dyestuff, oil, foodstuff, building materials, cement and refractory materials; it is suitable for grinding of materials like: lithopone, carbon ink powder, fossil meal, sulfur powder, lime dust, red mud powder, shell powder, feldspar powder, braize, bone dust,