XD series vacuum pump is of single stage shaft coupling structure, which operation performance is highly rotary speed, low noise, quick pumping speed and high efficiency. The pump cooling by air. It has prevent oil-return structure, prevent pump oil return to the suctioned system. A gas draining filter install in the pump, eliminate the oil mist effectively operation balance, small vibration, can operated under any pressure. The technical parameter of the pump is 2×102Pa. It is applied to several sectors such as food vacuum packing, pharmaceutical, paper transportation in printing machines, glass industry transportation, vacuum clamps and drying industry.