Universal Rai^® Blower

Ram-J Blower

URai^® DSL Blower

Roots-Flo^® Blower

Universal Rai-J^™ Blower

Ram Blower

RAM DVJ Blower

Ram-DPJ Blower

Universal Rai-G Blower

Your Trusted Partner for Roots Blower Solutions

When your operation depends on reliable air blower performance, you need a partner who delivers expert service, premium parts, and rapid response. Air Blower Services is your factory-authorized Howden Roots distributor serving Chicago, Illinois and facilities nationwide. With decades of experience and factory-trained technicians, we specialize in the service, repair, and installation of all makes and models of positive displacement blowers.

Why choose Air Blower Services? We're a factory warranty center using only genuine OEM parts. Our emergency 24-hour roots blower repair services ensure your operations never stay down for long. When equipment failure means lost production and revenue, every minute counts—and we're here to get you back online fast.

Special Announcement: We now carry the advanced 615 RGS-HVB Vacuum Booster for demanding industrial applications. Call today for competitive pricing and expert application guidance.

Aftermarket Parts, Service, & Repairs

Genuine factory OEM Parts
Factory Warranty Center
Repair services of all makes and models
Start-Up service and system troubleshooting
Vacuum Pump repairs

ROOTS Positive Displacement Blowers

Roots rotary pd blowers, vacuum pumps and gas pumps
Discharge pressures to 30 psig, vacuums to 27� Hg
Capabilities to 5600 CFM
Factory trained and authorized

ROOTS Positive Displacement Blower Packages

Roots EasyAir X2 enclosed packages
Pressures to 15 psig
Factory engineered, assembled and tested
Factory Warranty

Parts, Accessories, and Replacements Elements

Solberg inlet filters
Solberg inline filters
Solberg filter silencers
Replacement filter elements

Positive Displacement Roots Blower Lubricants

ISO grade 100, 150, 220, 320
single quarts, 5 gal. pails, and 55 gal. drums
Shell Durina SD lubricant

New! Royal Purple Poly Guard FDA Lubricant

HOWDEN ROOTS^™ UNIVERSAL RAI^® Rotary Positive Displacement Blowers

The Universal RAI series represents the gold standard in industrial positive displacement blowers—engineered for maximum reliability and operational flexibility. These heavy-duty workhorses deliver proven performance in the most demanding applications, from wastewater treatment to pneumatic conveying.

Designed for Your Operation: The innovative detachable mounting system provides unmatched installation versatility. Configure your URAI blower for vertical or horizontal mounting with four drive shaft position options (right, left, bottom, or top) to fit your space constraints perfectly. The compact, robust design ensures continuous service and exceptional longevity when operated within speed and pressure ratings.

Built to Last: Every URAI blower features industrial-grade components including cast iron casing, cast iron involute impellers, and carburized alloy steel timing gears for years of dependable operation. Oversized antifriction bearings and cylindrical roller bearings at the drive shaft handle heavy loads and resist V-belt pull. Advanced thrust control with dual lubrication systems (splash oil on gear end, grease on drive end) minimizes maintenance requirements.

Complete System Solutions: We offer comprehensive accessory packages including drivers, relief valves, inlet/discharge silencers, filters, check valves, extended bases, and drive guards—everything needed for a turnkey installation. Call 630.372.9222 for application engineering support and competitive pricing on complete URAI packages.

HOWDEN ROOTS^™ RAM^™ Rotary Blowers

When your application demands superior efficiency and reduced maintenance, the RAM series delivers. These advanced rotary blowers combine cutting-edge engineering with field-proven reliability to maximize your operational uptime and minimize total cost of ownership.

Advanced Engineering for Peak Performance: RAM blowers feature integral-shaft ductile iron impellers with precision involute profiles for optimal airflow efficiency. The rigid one-piece grey iron casing provides exceptional durability, while lightweight aluminum covers reduce overall weight without compromising strength. Premium carburized alloy steel timing gears and cylindrical roller bearings ensure smooth, quiet operation and extended service life.

Superior Sealing Technology: Multiple sealing innovations set RAM blowers apart. Piston rings minimize air leakage at shaft openings, lip-type oil seals prevent lubricant contamination of the air stream, and hydrodynamic drive shaft seals eliminate oil leaks. This multi-layer sealing approach means cleaner operation, reduced maintenance, and lower operating costs.

Installation Flexibility: Like all Howden Roots products, RAM blowers feature detachable mounting feet for easy field configuration. Choose vertical or horizontal mounting, with extended shaft options for side, top, or bottom outlet drive configurations to match your installation requirements perfectly.

Need expert guidance on RAM blower selection? Our application engineers are standing by to help you specify the right model for your flow, pressure, and installation requirements. Call 630.372.9222 for immediate assistance.

HOWDEN ROOTS^™ Tri-RAM^™ Rotary Blowers

Experience the next generation in quiet, efficient blower technology. The Tri-RAM series combines over a century of Roots engineering excellence (tri-lobe technology first introduced in 1914) with modern innovations to deliver dramatically reduced noise, minimal vibration, and smoother airflow with virtually no downstream pulsation.

Superior Performance in Demanding Environments: Built on the proven success of the RAM series, Tri-RAM blowers are ideal for applications where noise reduction is critical—from hospitals and food processing facilities to urban industrial sites with strict sound ordinances. The advanced tri-lobe design provides smoother operation, extended component life, and improved energy efficiency compared to traditional two-lobe configurations.

Ready to reduce noise levels while maintaining performance? Contact our technical team to learn how Tri-RAM technology can improve your operation. Call 630.372.9222 today.

HOWDEN ROOTS^™ RCS Rotary Positive Blowers

RCS rotary blowers are heavy-duty units designed with integral-shaft ductile iron impellers having an involute profile. The headplates, gear cover, end cover and rigid, one-piece casing are grey iron. Carburized and ground alloy steel spur timing gears are taper mounted on the shafts, secured with a locknut. Cylindrical roller bearings are used on the drive end with ball bearings on the gear end. Piston rings reduce air leakage through the shaft openings in the headplates, and lip-type oil seals prevent lubricant from entering the air chamber. The RCS incorporates thrust control, with splash oil lubrication at both ends of the blower. All units are designed with detachable rugged steel mounting feet which permit in-field adaptability to either vertical or horizontal installation requirements. The top shaft is extended for drive on side outlet blowers, and either shaft can be extended for drive on top or bottom outlet blowers. All frame sizes are center-timed to allow rotation in either direction.

HOWDEN ROOTS-FLO Rotary Positive Blowers

Patented ROOTS-FLO blowers are heavy duty rotary units in a compact, sturdy design engineered for reliable pneumatic conveying of grain and similar product. The basic model features a ribbed cast iron casing and ridged headplates, carburized and ground alloy steel spur timing gears secured to steel shafts with a taper mounting and locknut, and cast iron involute impellers. Oversized anti-friction bearings are used, with a cylindrical roller bearing at the drive shaft to withstand V-belt pull. Detachable rugged steel mounting feet permit easy in-field daptability to either veritcal or horizontal installation requirements.

DVJ & DPJ Rotary Positive Displacement Blowers

ROOTS DVJ blowers feature an excluseive discharge jet plenum deisgned to allow cool, atmospheric air to flow into the casing. This unique design permits continuous operation at levels to blank-off with a single stage unit, without water injection or heat exchangers. In the case of ROOTS DPJ blowers, discharge air is cooled before injecting into discharge jet plenum. headplates and the rigid casing are cast from grey iron, with aluminum dirive end and gear covers. Carburized ground alloy steel spur timing gears are securely munted on taper end shafts. Thsese units are designed with detachable steel mounting feet to permit in-field adaptability to discharge left, right or vertically upwards.

RAS-J Positive Displacement Blower

RAS-J series Whispair blowers are heavy duty units for continuous service featuring a proprietary design that reduces noise, pulsation, and horsepower levels over conventional blowers. An exclusive rap-around plenum and Whispair^™ jet eliminate rapid backflow of air into the blower from the discharge area - a major problem with conventional blowers.

Whispair Max Positive Displacement Blowers

The Whispair Max Rotary Positive Blower has a proprietary design that reduces noise and power loss by utilizing an exclusive wrap-around flange and jet to control pressure equalization.