Air classifier works grader and cyclone dust collector, Fan consisting of a hierarchical system. The material in the fan pumping force down into the lower end of the spout by grader with updraft speed movement to the classification zone, under the strong centrifugal force generated by the turbine rotating at high speed grade, so that the thickness of the material separation, in line with the requirements of the fine particle size by grade round blade gap into a cyclone or dust collection, the role of gravity and centrifugal force coarse sinking, the rotor blades were thrown around and fell along the cylinder barrel, during landing but also by the impact of the secondary air flow, so coarse powder to break up the reunion and once again blown grading room, meal gravity discharged from the lower discharge valve. Air classifier Features 1. Vertical grade turbine unit, low speed, wear resistance, low system power configuration grader 2. Reasonable structure, and produce goods 3. Applicability 4. System multiple segments of negative size pressure operation, dust emissions of no more than 40mg / m, the device measures the noise through the use of silencers, no higher than high 75dB (A) 5. degree of automation. The control system uses process control, real-time operating status display. Air classifier Applications 1. high hardness materials: silicon carbide, a variety of corundum, boron carbide, alumina, zirconia, garnet, zircon, diamond, etc. 2. Non-metallic mineral: quartz, graphite, kaolin, calcium carbonate , mica, barite, mullite, stone, wollastonite, talc, pyrophyllite, etc. 3. Chemicals: aluminum hydroxide, silica, various dyes, epoxy resins, additives, etc. 4. Food and Drug : pollen, hawthorn, pearl powder, Ganoderma lucidum, a variety of vegetable powder, a variety of herbs, a variety of health care products, cosmetics, drugs such as antibiotics, 5. Metal material: aluminum, magnesium, zinc, tin powder, copper powder, etc. 6. Separation of metal and nonmetal materials, such as: aluminum and plastic separation, copper and plastic separation 7. Other materials: ceramic materials, refractory materials, electronic materials, magnetic materials, rare earth materials, phosphors, copy material powder