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Roots™ Universal RAI-J Blowers

TRoots™ Universal RAI-J™ Whispair™ rotary positive blowers are engineered for reduced noise and smoother operation. Available in 5 models, these units feature Frames 33J thru 56J and universal mounting feet for flexible installation across four configurations.

Available Models

4 Products

Product Specifications

Roots Universal RAI-J Whispair Blowers −

All models in the Universal RAI Blower WHISPAIR rotary positive blowers series incorporate ROOTS’ exclusive WHISPAIR™ jet technology, designed to reduce noise and pulsation. These units use shock suppression techniques to minimize pressure fluctuations and improve overall performance.

The blowers feature grease lubrication on the drive end and splash lubrication on the gear end, along with ROOTS’ “figure-eight” gearbox design to enhance oil distribution and extend bearing life.

Frame Sizes: 33J thru 56J

These rotary blowers include detachable steel mounting feet for easy adaptation to vertical or horizontal installations, with four drive shaft positions (top, bottom, right, or left). All units are center-timed for operation in either direction.

Highlights −
  • Flow Rates: 28 – 600 ICFM (47 – 1019 mÂł/hr)
  • Pressure: Up to 13 PSI (896 mbar)
  • Vacuum: Up to 16 INHgV (539 mbar) (Dry)
  • Horsepower: 0.6 – 37 BHP (0.44 – 28 kW)

These heavy-duty rotary positive blowers are designed for continuous operation with a compact and durable construction.

Design & Features −
  • WHISPAIR™ jet design for noise and pulsation reduction
  • Noise reduction of approximately 3–5 dBA compared to standard units
  • Up to 40% lower pressure pulsation than conventional blowers
  • Grease lubrication on the drive end
  • Splash oil lubrication on the gear end
  • Exclusive “figure-eight” gearbox design for improved oil distribution
  • Detachable steel mounting feet for flexible installation
  • Universal mounting (vertical or horizontal configurations)
  • Four drive shaft positions: top, bottom, right, or left
  • Center-timed design for bi-directional operation
  • Rigid cast iron casing with computer-designed relief for shock suppression
  • Carburized and ground alloy steel spur timing gears
  • Anti-friction bearings with cylindrical roller bearings on the drive shaft
  • Precision-machined cast-iron involute impellers
  • Ground steel shafts
Applications −
  • Wastewater treatment
  • Pneumatic conveying / material handling
  • Industrial air systems
  • Chemical and petrochemical processing
  • General air and gas handling systems

Industrial Blower Experts Serving South Texas

As a leading Roots blower distributor, ACFM provides high-performance industrial blowers South Texas industries rely on. We supply durable Roots blowers Houston businesses trust, along with complete support for gas handling systems and air applications.

Whether you need assistance selecting a rotary positive blower or require support for installation and service, our team delivers reliable, long-term solutions tailored to your operation.