Ruled wheel especially for dust, small particles of materials by environmental protection, metallurgy, chemical, mining, machinery, electricity, food, cement, road construction, and other industries drying equipment projects based on merit. The structural characteristics of the discharge by planetary rotation principle, the input and output on the same axis, but also with the motor directly connected to one of the unique nature and therefore compact and handsome in appearance, small size, light weight. The materials can also be based on user needs special processing, such as high temperature, corrosion-resistant, stainless steel, flexible blade, explosion-proof impeller. For users of special specifications, non-standard housing, electric, manual, belt sprocket and so on, can be produced. Compact discharge structure, since the bearing, gear box some distance away from the housing, for high-temperature lubrication has greatly improved, smooth operation, low noise, beautiful shape, easy to use. 15128740750 develop design, same day shipping, all indicators