Description

Rugged, low-noise bi-lobe rotary blowers

The ROOTS® Universal RAI-J™ rotary blowers are engineered for tough applications with the added benefit of quieter operation. Built with strong, removable steel mounting feet, they allow for quick installation in either vertical or horizontal positions. These units also support four flexible drive shaft configurations—left, right, top, or bottom. The RAI-J™ series includes WHISPAIR™ technology, which helps minimize pressure fluctuations and reduces overall noise output by 3 to 5 decibels.

• Delivers pressure up to 15 psig (1034 mbar)
• Achieves vacuum to 16” Hg (539 mbar)
• Handles airflow up to 630 cfm (1070 m³/hr)
• Comes with metric shaft and pipe fittings

Key Features

• Removable steel feet for flexible installation
  
• One-piece cast iron housing for strength and stability
  
• Heavy-duty anti-friction bearing system
  
• Spur timing gears with splash lubrication
  
• Standard pipe-sized connections for simplified integration

Benefits

• Flexible Setup Options: Adjustable steel feet make it easy to install the blower in any of four drive shaft positions—top, bottom, left, or right.
• Built for Long-Term Use: Compact, tough construction delivers reliable performance within rated speed and pressure ranges.
• Durable Internal Build: Includes a solid cast iron body, cast iron impellers, and precision alloy steel gears.
• Strengthened Bearing Support: Equipped with oversized anti-friction bearings and a cylindrical roller bearing to handle V-belt tension.
• Smoother Performance: Reduced pressure pulsations help minimize vibration during operation.
• Quieter Operation: WHISPAIR™ technology effectively limits air backflow, cutting down noise output.
• Better Efficiency: Up to 40% lower air pulsation compared to standard blowers, improving system performance.

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