Optimized Threshing Mechanism: Bigger double rollers, better threshing results and separation, additional re-threshing devices. Advanced Cleaning Mechanism：Optimized double fish shaker, dependent end shaker angle and lower loss. Wider Conveyer：Feeding more smoothly. Improved Reel：Spring tooth，hydraulic control for laid crop. Capacious Grain Tank：1.3m3 of grain tank, dependent open and shut of gate and unloading conveniently. Main Specification Modle 4LD-2.6 Feed 2.6Kg/S Productivity 0.33-0.67 hectare/h Total loss rate Wheat≤1.5% rice≤3.0% Weight 1950Kg Dimension(length*width*height) 7544*2625*3110 mm Harvester breadth 2200/2300 mm Mached power 70-90HP tractor