Elmo Rietschle, CycloBlowers, HeliFlow

Elmo Rietschle Regenerative Blowers

Elmo Rietschle Regenerative Blowers

Elmo Rietschle Regenerative Blowers


Elmo Rietschle Generative Blowers are primarily used for moving gases and gas/air  mixtures.  

Some technologies are so good that it is hard to improve  them. Side channel blowers from Elmo Rietschle are such an example. They  have proven their reliability for many decades, performing  flawlessly day in and day out with virtually no down time.

Noise levels have been lower than that of most other vacuum pumps and compressors.



  • Low noise level
  • Reliable and durable
  • Virtually no maintenance
  • Available with variable speed drive
  • IP 55 protection class
  • Premium motors on request
  • ATEX versions available


Elmo Rietschle Regenerative Blowers

Elmo Rietschle Regenerative Blowers

The CycloBlower is the original rotary  screw blower. For more than 60 years, the CycloBlower has offered significant design advantages with proven results through  efficiency, quality & dependability. 

  • The most energy efficient PD Blower
  • Higher pressure/vacuum capabilities
  • Reduced pulsation & noise levels
  • Oil-free air/gas delivery
  • Efficient, shock-free compression
  • Long service life

Air Volume  

Up to 6700 CFM


Up to 20 PSI


 Up to 24″ Hg


3CDL-5, 3CDL-8

5CDL-5, 5CDL-9, 5CDL-13

7CDL-11, 7CDL-14, 7CDL-17

9CDL-13, 9CDL-18, 9CDL-23

11CDL-23, 11CDL-27, 11CDL-31

HeliFlow Tri-Lobe

Elmo Rietschle Regenerative Blowers

HeliFlow Tri-Lobe


Gardner Denver’s HeliFlow Series provides an innovative, low noise solution using a helical tri-lobe design.

The tri-lobe design allows for lower noise levels and higher pressure capabilities compared to similar straight-lobe blowers.

  • Quiet operation 
    • Solid helical tri-lobe rotors
    • Engineered for lower pulsations and lower noise                                         
  • Higher reliability 
    • The HeliFlow smooth pulse operation extends the life of bearings and downstream instrumentation
    • Large diameter shafts provide superior overhung load capacity
    • Dual Splash Lubrication provides longer life and reduced service intervals