The principle and structure Roots vacuum pump is mainly composed of a pair of high-speed synchronous rotation of the "8" shaped rotor and two semicircular pump chamber components. The pump alone can not exhaust, must be with a pump (such as claw-type pumps, screw pumps, rotary piston pump, water pump, oil ring pumps, etc.) used in tandem. Front air intakes on the front-stage pumps in series Roots vacuum pump unit and increase the degree of vacuum before the pump, the effective range can greatly improve the pumping rate. Roots vacuum pump ultimate pressure is determined by the pre-pump. Roots pumps are widely used in vacuum casting, vacuum distillation vacuum melting, vacuum degassing, vacuum coating industry and the chemical and pharmaceutical industry, vacuum drying. Pump is not sensitive to small amounts of dust. ZJ Roots vacuum pump, the use of CNC machining center Roots vacuum pump and side cover, are used between the cover and the side cover "O" ring seal Roots vacuum pump manufacturers supply, cylindrical pin positioning, parts exchange Good performance Roots pump wholesale convenience, maintenance, pump with an air inlet, the structural design of the three exhaust ports, user-friendly installation. Roots pumps can not be used, only the series before the pump to use, you can choose screw, seal pumps, liquid ring pump as the wholesale production of Roots vacuum pump, it is worth mentioning that elected with screw pump, liquid ring pumps When as a backing pump, especially for the occasion in addition to a large number of suspicious smoke gases. Roots vacuum pump manufacturers, wholesale, long 沙罗茨 vacuum pumps, Zhucheng East Machinery Co., Ltd. by John Han Machinery Co., Ltd. Zhucheng East. Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) (www.dhlcfj.com) strong, credible, Shandong Weifang fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Zhucheng East Han Machinery Co., Ltd. into the brilliant and you work for a better future!