Regenerative Blowers


Two new ROTRON® brand regenerative blowers have been introduced to satisfy a wide range of industrial applications.  They can agitate solutions, convey parts and products, perform vacuum hold-down and pick-up operations, dry and clean parts, or sample process and off gases, among many other capabilities.
These clean, oil-free, and quiet blowers (Models DR333 and DR433) incorporate compact, rugged construction engineered for reliable and long service life at point-of-operation.  They employ regenerative air technology to develop proper air pressures and vacuums without the higher energy and maintenance costs associated with larger multi-stage or positive air-displacement blowers and compressors.
ROTRON DR333 blowers can achieve maximum flows up to 58 SCFM, pressures up to 10.8 PSIG (300 IWG), and vacuums up to 17.5 IHG (240 IWG).  The DR433 versions can develop maximum flows up to 110 SCFM, pressures up to 13 PSIG (360 IWG), and vacuums up to 17.6 IHG (183 IWG).
Both models feature rugged cast aluminum housing, impeller, and cover; threaded cast iron flanges; and UL approved 3-phase TEFC motors with permanently sealed ball bearings contributing up to 25,000 hours of service life.  The motors can be specified to handle a broad range of international voltage and frequency options.
These blowers can be customized with options and accessories to satisfy particular application requirements.  Available accessories include flowmeters reading in SCFM, filters and moisture separators, pressure and vacuum gages, relief valves, and variable frequency drive package, among others.


  • clean, oil-free, and quiet
  • regenerative air technology
  • achieve maximum flows up to 58 SCFM
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