Oil-free double-stage vacuum pump is suitable for packaging, paper making, CNC, plastic, glass, leather, foam, printing and dyeing, PVC pipeline, bottle making, wood processing and meat products packaging and other applications, is an excellent choice for indoor vacuum and factory vacuum system. Small size, easy to install and maintain convenient, will not pollute the environment products. The vacuum degree is high, the vacuum degree can be maintained for a long time; motor power, low energy saving 50%, water saving is 90%; conducive to exhaust gas recovery and clean vacuum; green products, no secondary water pollution, reduce pollution control pressure.