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Oil-free vacuum pump working principle and purpose Oil-free vacuum pump working principle and the general volume of the same pump, the stator, rotor, rotary vane, cylinder, motor and other major components. Rotor with a rotating plate, eccentrically installed in the fixed cylinder, when the rotor rotates at high speed, the rotor slot within the four radial sliding rotary pump chamber will be separated into four studio, due to centrifugal force, the vane close to the Cylinder wall, the stator into the discharge port separated from the cycle of operation, for the varactor, the inhalation of gas, discharged from the exhaust port, so as to achieve the purpose of pumping. Use range Oil-free vacuum pump can be applied to the following tasks: 1, automatic vacuum suction line on the packaging line to open bags, loading. 2, printing machinery on the vacuum suction paper. 3, a variety of liquid into the bottle of high efficiency vacuum filling. 4, all kinds of plastic vacuum plastic forming. 5, the surface of the object in airtight vacuum test. 6, carton and bottles of standard vacuum suction paste. 7, under vacuum to attract the fixed photographic plate. 8, the use of vacuum pressure difference under the guidance of gas analysis. 9, all kinds of medical machinery supporting the use of online. 10, the processing of non-magnetic parts folder with a vacuum chuck fixture. 11, a variety of containers in the vacuum leak test. 12, food processing machinery on the application. 13, Chinese and Western pharmaceutical vacuum distillation and drying. 14, the hospital operating room vacuum to attract. 15, institutions, institutes, factories and mines laboratory gas analysis, physical and chemical experiments. 16, all kinds of oil-free vacuum pump supporting the use of medical equipment.