Corn Harvester YB3056/3065, YB4056/4065 Main features: 1> Stalk-pulling roll type snapping mechanism Combination of forced feeding header and snapping plate makes less loss and higher efficiency 2> Second stalk-pulling & cleaning fan mechanism Greatly improve purity of ears and available for harvesting maize in different mature period 3> Mechanically hoisting elevator mechanism Lower height to be transported conveniently 4> Lifter mechanism After applying forced feeding header together with lifter,it can realize harvesting the maize in irregular rows , convenient to disassembly & assembly, meet all customers' demand with high efficiency & adjustability 5> Openable cover for header Convenient & quick to maintain , adjust & inspect so as to improve the efficiency 6> Straw returned to field &collecting divice It can meet the customer's demand for utilizing straw ,such as returning to field??collecting; Hammer claw type and flail knife type returning mechanism can be choosen by customers 7> Large grain tank Large valid capacity (4YD-3 type 1.9m3 , 4YD-4 type 2.4m3), higher point to support grain tank can adjust to a lot of vehicles, convenient & quick to discharge 7> Grass cleaning knife mechanism With high efficiency and reliability , header is matched with grass cleaning knife so that no grass will wind around stalk pulling roll in operation