1. Hydraulic drive side output device.side output harvester，which can realize 2 + 2 mode with combine harvester. 4 ridges were harvested at one time.

2. The separation effect of potato soil and potato seedlings is good.  The front floating disk knife is used to cut the surface along both sides of potato ridge together with weeds, which is conducive to digging parts and preventing the machine from winding and blocking the stems and weeds on both sides;  The shape suppression and depth limiting device not only crushed the hard shell of the ridge surface, but also made the potato soil loose and improved the separation effect of potato soil.  Moreover, it can ensure the depth of digging shovel, dig potato fully and do not hurt potato, reduce power consumption.  Two-stage wave grid transmission separation screen, the material is made of high-performance alloy steel through special heat treatment process, with good elasticity, high strength, good wear resistance and other characteristics, so that the potato soil separation effect to achieve the best, sticky, sandy soil can be harvested.

3.Low breaking rate:Different vibration amplitude is scientifically adjusted according to the content of potato soil at different stages of transmission and potato movement track.  The driving wheel is rubber teeth, meshing well with the steel grid, light wear, long life, reliable use, potato breakage less, the potato peel rate reduced within 2%.

4.Wide range of adaptation.  The supporting power is 92-118， which is suitable for the four-wheel tractors owned by most farmers at the present stage.  It has the characteristics of wide adaptation power, less investment and quick effect.

5.The machine runs briskly without vibration, does not block grass, leaks soil quickly, and has a long service life.  The excavation Angle and the lifting Angle of the conveying separation device are designed in the same way to solve the problem of soil accumulation after shoveling.  The machine adopts laser cutting machine, precise and beautiful, high concentricity, high precision sealed bearing, anti-wear rubber wheel, never into the soil, long service life of the machine.