It is applicable to “superfine free-washing rice”, features the unique polishing chamber structure, multi-path inlet air and twice atomizing dampening; the rice is fractionized with screen plates and stainless steel roller in high speed running each other under strong air suction effect, accordingly to remove the residual bran and groove mark on rice surface, and to make the starch on rice grain surface formed to the gelatinous layer; less broken rate, easily for storing; the rice grain is bright, clean and crystal-clear, it can be free-washed or less washed, The nutrient content loses less, the taste is soft and delicious, which enhances the dietary value of the rice. The operation of fast and slow feeding adjustment device is scientific and simple. It is provided with built-in motor and small floor area. Type WFPG160Output (kg/h)4500 5500Power (kW)55/65--4Air volume (m3/h)5500--6000Weight (kg)1500Overall dimensions (mm)2237×840×1929