High efficiency National III 260hp Yuchai engine with strong power, enabling switch between 220hp and 185hp light-load and fuel-saving working mode, which is environmental friendly and high efficiency; Double longitudinal axial flow threshing separation technology, large separation area, light workload, high efficiency, good threshing and separation effect; The inclination angle of the upper sieve is 6.5°, and the sloping land is harvested without wasting grain; the cleaning area is 4.3㎡, not only the cleaning area is large, but also the cleaning efficiency is high; The grain tank is enlarged with a volume of 7.5m³, which increases the working area hourly and makes the work more efficient. Increased capacity of the fuel tank up to 700L, meeting the needs of large plots and high yields harvesting tasks, with long working hours and improved work efficiency     High adaptability Double longitudinal axial flow threshing separation drum realizes flexible threshing separation, the corncob after threshing is relatively complete, which decrease the damage of grainl; Forcibly accelerate the feeding roller, adapt to green stalk, wet and dense crops, feed evenly and smoothly, the roller consumes less power, and effectively maintains the integrity of the straw; The acceleration roller is equipped with punching concave plate or grid concave plate, which has the function of flexible pre-threshing and separation; Hydraulic four-wheel drive chassis realizes convenient and fast stepless speed change, which adapts to various working conditions and scenarios; Grain unloading height is 5m, high adaptability and worry-free across regions; By replacing the header and adjusting some working parameters of the main engine, the harvest of corn kernels, soybeans, wheat and other crops can be realized multiple function for  one machine.     High reliability Equipped with international brand walking large pump and front and rear motors, domestic well-known hydraulic rear drive axle, original international technology four-speed large side reduction hydraulic front drive axle, higher reliability and better stability; The front tire is 16 layers, the comprehensive bearing capacity is 17 tons, and the reliability is higher; Transmission belt: The bridge is 3HB type, the grain unloading is 2HB type, the threshing type is 4HC, the power transmission is stable and durable; Key parts adopt international brand bearings, which are durable and highly reliable; The transmission shaft of the header adopts universal joint transmission, which solves the problem of failure of the original hexagonal shaft and double-row chain, and is more reliable and stable.     Comfortable driving The cab adopts ergonomic design, integrated control of the header, reel lift, electro-hydraulic main clutch switch, etc., which is convenient and fast; The integrated structure of the new armrest box and the seat makes the driving experience more comfortable.