Pellet maker can also be called pellet press, pellet mill, pellet machine etc. it is such a piece of equipment that used make various biomass materials into pellets form for feed, bedding or fuel uses. Pellet makers were first produced to make animal feed pellets from straws and grasses, but gradually people are becoming more and more interested in making wood pellets for heating purpose. However, compared to straws and grasses, wood has a much higher density and stronger fibres than these materials. They are much easier to process and have a lower density, as a result if you want to produce wood pellets, more torque or power is required. Besides, sufficient temperature and pressure are also needed in order to melt the materials natural lignin in wood, so the original pellet machine must be changed in order to produce good wood pellets. Pellet makers usually can process pellets whose diameter is between 4mm-10mm. In addition, the length can be adjustable base on clients demand and the best moisture content for pelletizing is between 12%-15%.