Wood Pellet Mill 700 The feed particle machine feeding vertically, vertical die, directly in place, no raw material arching, fitted with a fan device, and simple for thermal dissipation are the characteristics of the compressed wood pellets mill. Due to centrifugal force, materials are dispersed equally throughout the D-ie, which is a static machine with rotating rollers. a two-layer die. dual-purpose, large capacity, and energy-saving up and down. machine for feeding particles