Roots vacuum pump structural features (1) over a wide pressure range greater pumping speed; (2) a rotor having a good geometric symmetry Roots vacuum production and supply, so little vibration Roots vacuum wholesale phone, smooth operation. Between the rotor and the gap between the rotor and the housing are Roots vacuum pump, no lubrication, low friction losses, it can greatly reduce the driving power Roots vacuum Wholesale, enabling high speed; (3) the pump chamber without oil seal and lubrication oil vapor can reduce pollution principle and structure Roots pump vacuum system components consists 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. Roots vacuum pump manufacturer, Tianjin Roots 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!