It is a 20 ton per day rice mill- machine installation site developed by Cleaning and stone removing machine， rice husker，paddy separator，rice milling machine，rice grading machine，rice color sorter.

Working Principle Based on the difference between broken rice and whole rice, overlapping rotation is made on the plane rotary screen surface, and automatic classification is formed by friction propulsion. The classification effect is better when the three-layer and four layer equipment adopts the technology of extracting whole rice two to three times in succession.