ZJQ series of air-cooled Roots Roots vacuum pump manufacturers in the ZJ series Roots vacuum pump on the basis of an increase of bypass gas cooling system of new products derived out. Due to its special design, it can be in high differential pressure and high compression ratio of long-term reliable operation. ZJ series Roots vacuum pump is a rotary positive displacement pump Roots vacuum where the best, to be a front-stage Roots vacuum pump is intended for use with wholesale prices, over a wide pressure range has a higher pumping speed of was pumping gas contains dust and water vapor is not sensitive, widely used in metallurgical, chemical, food, electronics and coatings industries. 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. Roots pump wholesale price, Roots vacuum pumps, Zhucheng East Han Machinery Co., Ltd. provided by Zhucheng East Han 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!