Rotary Lobe Blowers Large Frame Package

Simple maintenance

Sound enclosures have removable panels allowing easy access for all service work such as oil and filter inspection changes and V-belt tensioning.

Premium efficiency motors

Premium efficiency, TEFC drive motors are EPAct compliant. Optional motor enclosures and voltages are available.

Automatic belt tensioning

The pivoting motor base and tension spring automatically apply the correct V-belt tension for excellent transmission efficiency. The visual indicator prevents overtensioning to extend belt, pulley and bearing life.

Simple maintenance

Drain valves with gasketed caps mounted on the front, just inside the access door, simplify oil changes.

Effective cooling

The combination of air ducts in the sound enclosure and powerful fans create a highly efficient cooling system that ensures effective cooling even for frequency-controlled units.

Cooling air flow

The optional sound enclosure features a cooling air opening directly adjacent to the drive motor for effective cooling and optimum efficiency – even under maximum load conditions. The inlet and outlet cooling air openings are fitted with foam-filled silencing covers.


  • HB 1300Pi
    2176 to 4493 CFM
  • HB 1600Pi
    2922 to 5258 CFM
  • Pressure up to: 15 psig
    Vacuum to: 15″ Hg