air blower / Roots rotary lobe / 2-lobe / single-stage
RR Series Shandong Zhangqiu Blower Co.,Ltd



  • Type:


  • Technology:

    Roots rotary lobe, 2-lobe

  • Number of stages:


  • Other characteristics:


  • Applications:

    conveying, process, for chemicals, for food applications, for the petrochemical industry

  • Flow rate:

    Min.: 1 m³/h (35 ft³/h)

    Max.: 456 m³/h (16,103 ft³/h)

  • Operating pressure:

    Min.: 9,800 Pa (1.421 psi)

    Max.: 98,000 Pa (14.214 psi)


RR Roots type blowers/vacuum pumps are made with the technology introduced from Japan.

1、Various models including pressure type, vacuum type, dry type, wet type etc.
2、Small clearance position bearings made in Japan ensures the reliable rotor axial location.
3、Bi-lobe rotors are made in casting iron, and can be replaced completely for the high precision machining.
4、Dual splash lubrication
5、Besides of labyrinth seals, mechanical seals and packing seals are also available to deliver different gases.

Single stage blowers flow:0.95~452m3/min, pressure rise: 9.8~98kPa
Single stage vacuum pumps flow: 0.51~452m3/min, vacuum: -9.8~-49kPa
Single stage wet type vacuum pumps flow: 0.57~456m3/min, vacuum: -13.3~-53.3kPa

Widely used in Power, petroleum, chemical, fertilizer, steel, metallurgy, oxygen producing, cement, textile, food, paper making, dust-cleaning, aquatic farming, sewage treatment, pneumatic conveying etc. diverse industries.