This chaff cutter is professional,it can cut stalks,wheat straw,rice ... crops such as green straw and grass. High Efficiency Chaff Cutter Chaff cutter used to cut the green (dry) corn straw, straw ... , shims, knife bearing seat.2. Cutter thrower: it is mainly consist of cutting knifes, cutter head, locking dcrews etc.3. Transimission ... to Contact Helen!Mobile: 86 13676947329 High Efficiency Chaff Cutter