... ,cotton stalk,wheat straw,grass and so on.The final pellets has the features of environmental friendly,high calorific value,low ... is enough to operation the machine.4.wearing parts : the wearing parts of the machine are the gear of the roller , molds .5 ... the mold, which can cut pellet automatically, it can also adjust the length of pellet. 4.During the process, the oil supply device can lubricate the ...