This is a new patent of pellet mill special for wood sawdust. But it can also apply to the stalk, straw, and son on. It is adopted the technology from Europe. The output volume is high, energy consumption is low and the operation is convenient. A) The materials are pressed by the 3 rollers at one time, so the pressed area increases 1 more roller, so the output is improved. B) The three rollers are designed fan-shaped and slanted to reduce the friction between the roller and the plate. Therefore the consumption is lower. Packed in steel box