Industry pellet production and the end pellets can be used for fuel in fireplace, boiler, gasifier or biomass power plant.Equipped with a forced feeder, it can produce excellent wood pellets with high density and combustion value. Ring dies with different bore diameters can be customized according to clients’ different demands; here we would like to recommend the wood pellet mill with whole diameters of6mm, 8mm, 10mm, 12mm, etc. Solid pellets produced from which are proved incentive and smokeless. Ring die pellet mills are of vertical structure and they combine with the flat die pellet mills’ vertical feeding method. The original circle structure of ring die pellet press is specially designed for those wood materials like gum wood, palm which are hard to press. Because the proportion of the materials is light,so vertical feeding method is selected. In addition, due to the nice stability of circle structure ring die pellet mills, thus the design adopts combination of ring die and flat die.