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 of the Roots vacuum pump foreline phone manufacturers, 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. ZJP series Roots vacuum pump is a positive displacement pump, also known as a mechanical booster, is currently available, and one of the major high-vacuum pumping equipment Roots vacuum outlets, which works with Roots blower is similar to the use of eight rotors in the pump housing to synchronize and turn the opposite direction, thereby completing the intake and exhaust. The main features of Roots vacuum pump over a wide pressure range (1-1 × 10-4) has a higher pumping speed and pump chamber without oil, to avoid the oil vapor pollution vacuum systems. Roots vacuum pumps use small vibration, low noise. Small mechanical friction loss, so the drive power is small. Easy to maintain and repair, low cost, high life expectancy. Roots vacuum pump manufacturer and supplier of vacuum pumps Roots _ _ Guangzhou Machinery Co., Ltd. Zhucheng East Han Han by Zhucheng East Machinery Co., 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!