... for grinding crop stalks 5.12 months warranty OUTDOOR / FIELD Hammer MillIntroduction The OUTDOOR / FIELD Hammer Mill,matched with diesel engine also ... can be used in outdoor places, is a type of impact mill or milling machine ... of wood piece, straw, grass, stalk, tree branches, waste cardboard, bamboo, wood scraps, corn stalk, peanut shell, wheat stalk, wood fuel ...