Pellet mill is a machine that produces agricultural and forestry wastes like sawdust, straw, rice husk and other biomass materials into biomass pellets for biofuel or feed. Pellet making machine uses high temperature and pressure to pretreat and process those materials and solify them into pellet fuels, which is the ideal fuel replacing fossil fuels. The main parts of pellet machine are die and roller, under their cooperation, materials go into the die hole from one side and come out from the other side, finally, become biomass pellets.
There are two types of pellet machines, flat die pellet machine and ring die pellet machine. The former is generally used in small-scale production, like household use, while the latter is mainly used in complete production like factory.