AERZEN Positive Displacement Blowers are oil-free, three-lobe rotary blowers designed for moving air and neutral gases in plant engineering and industrial settings. Made from cast iron and steel, these blowers handle volume flows from 30 to 65,000m³/h and differential pressures from -500 to 1,000 mbar, with integrated pulsation reduction for quieter operation.

  • Oil-free, three-lobe rotary blowers for air and neutral gases

  • Volume flow range: 30 to 65,000m³/h

  • Differential pressure: -500 to 1000 mbar

  • Integrated pulsation reduction for lower sound levels

  • Made from cast iron (GG-20) and steel (C 45 N, EN-GJS-500-7, EN-GJS-400-15)

  • 22 size options for varied plant requirements

  • Air-cooled, ribbed housing for efficient heat dissipation

  • Oil splash lubrication for moving parts

Applications

  • Water and wastewater treatment

  • Pneumatic conveying of bulk materials

  • Aeration and filter backwashing

  • Gas conveyance and degassing

  • Dust removal and vacuum production

  • Biogas treatment

  • Air separation plants

  • Industrial sectors including sewage, chemical, power, cement, food, and paper

Performance

Volume flow: 30 to 65,000 m³/h

Differential pressure: -500 to 1,000 mbar

Materials

Housing: cast iron (GG-20)

Shafts and rotors: steel (C 45 N, EN-GJS-500-7, EN-GJS-400-15)

Helical timing gears: 16 Mn Cr 5E

Options and variations

22 sizes from GM 3 S to GM 1080 L

Left or right driving shaft position

Overhung drive via v-belt, direct coupling, or gearbox