... to do trail experiment. it can press 2-8mm diameter biomass fuel pellet, animal feed pellet and fertilizer pellets , raw biomass ... agricultural stalk, straw, peanut shell, sun flower, paper ect ,animal feed materials can be grain, soybean, maize ect, fertilizer materials can ... especially for crude fiber biomass materials, needs higher pressure to press into good pellets, so flat die wood pellet mill is ...