... experiment. it can press 2-8mm diameter biomass pellet, animal feed and fertilizer pellets , raw biomass materials can be waste ... , agricultural stalk, straw, peanut shell, sun flower, paper ect ,animal feed materials can be grain, soybean, maize ect, fertilizer materials can ... press can make biomass pellets as burning fuel , make animal feed pellet, and make fertilizers for farm use. the engine ...