air blower / Roots rotary lobe / 3-lobe / single-stage
ZG series



  • Type:


  • Technology:

    Roots rotary lobe, 3-lobe

  • Number of stages:


  • Applications:

    conveying, cooling, discharge, heavy-duty, petrochemical

  • Flow rate:

    Max.: 184 m³/min (6,498 ft³/min)

    Min.: 0 m³/min (0 ft³/min)

  • Operating pressure:

    Max.: 98,000 Pa (14.214 psi)

    Min.: 9,800 Pa (1.421 psi)


ZG Blowers with tri-lobe are heavy duty style new products based on MB blowers which technology is from America.It is the replacement for Duroflow models of Gardner Denver, RAM/RCS models of Dresser Roots, and RBS models of Robuschi.


Low noise tri-lobe rotor
Noise-reduction know-how application for casing
Integral-shaft ductile iron impellors
Dual splash lubrication
Over sized cylindrical roller bearings
Hardened teeth face for precision helical timing gear, taper-lock shaft mounting
Versatile configuration
Piston ring air seals
Lip type viton oil seals
Air cooling
Automatic belt tensioner and integrated discharge silencer base frame application for the blower package.


Pressure to 98 KPa / Vacuum to -49 KPa
Flow: 0.6~113m3/min


Widely used in waste water treatment, petro-chemical, cement, power, metallurgy and pneumatic conveying diverse industries