1. 2500mm separation tube, add separation area 50%, improve separation effect 2. Two side remove grass facility, improve harvester efficiency 50%. 3. Multi-level cleaning system, make the rice more clean,with no grass, no chaff. 4. Widen elevator,Increase granary, reduce unloading rice times. 5. Sealed cab, this reduce the noise, make the driver feel more comfortable. 6. Lengthen the middle bridge, the driver can see more clearly, more bigger range. 7. Steering wheel in one side of the cab.