RootsTM Rotary Blowers

Supporting industrial processes with reliable, efficient air and gas blowers

Roots blowers are found wherever there is a need to move air and gas.  That means throughout a vast number of applications within industries such as food & beverage, chemicals, water, pulp & paper, mining, cement, power, metals and oil & gas. 

Many industrial processes rely on air such as combustion, vacuum, air separation, water aeration, pneumatic conveying, membrane cleaning or regeneration and many more.

Within gas applications, Howden’s blowers process many gases from steam to nitrogen, hydrogen and other hydrocarbons as well as being specialists in steel degassing high vacuum boosters.

For vacuum truck OEMs our truck mounted Roots blowers are the ideal solution as they are both quiet and powerful.


Why industry chooses Roots Blowers


Range: nine models offer a large performance envelope with small rotary blowers up to 10,000 m3/h available as a bareshaft blower or within a standard package. Larger blowers up to 70,000 m3//h can be packaged as required per customer requirement or supplied as a bareshaft for packaging by others.


Reliability: our blowers are trusted to perform in areas of continuous use. Optional features such as Dual splash lubrication can increase oil capacity and add to blower reliability.


Efficiency: all power consuming equipment can contribute to significant annual and lifetime operating costs. Howden’s experts will specify the right blowers for each site and duty to maximise the output with the minimal level of power consumption.


Noise: keeping operations under the permitted noise level is a critical factor for the health of personnel on site and the neighbouring community. It’s an area in which Howden excel with a range that offers WHISPAIR™ technology which reduces pulsation and noise by 3-5 dBA. Acoustic enclosures can also be supplied with up to 22 dBA free field attenuation.

Key Features

  • Easy to install, with small footprint.
  • Acoustic enclosure is designed to provide up to 22 dBA free field attenuation.
  • Broad operating performance range provides a multitude of efficient and compact solutions.
  • Air flow from front to rear is designed for personnel safety and equipment reliability.
  • Access to air filter is convenient and designed to reduce pressure losses, improving reliability and blower efficiency and protecting your investment.


  • Small rotary performance
  • Flow rate: Up to 10,710 m3/hr (6,300 cfm)
  • Pressure: Up to 15 psig
  • Vacuum: Up to 28” Hg
  • Large rotary performance
  • Flow rate: Up to 120,000 m3/hr (70,000 cfm)
  • Pressure: Up to 35 psig
  • Vacuum: Up to 28” Hg and high vacuum
  • Custom design available for high static pressures


Huge range of applications as the small lobe blowers are designed to work on trucks, while the bigger blowers operate in applications such as vacuum filtration and drying and materials handling.


Roots URAI series

URAI series

Heavy duty rotary blowers in a compact, sturdy design engineered for continuous duty and maximum reliability. These blowers have a time tested lubrication system and our exclusive “figure-8” gearbox, which improves oil distribution to the timing gears and lengthens bearing life.

Roots RAM series

RAM Series

Market leading volumetrically efficient blowers. The RAM series can operate under either vacuum or pressure application with no equipment modification, and can provide simultaneous vacuum and pressure for a system with a single unit. All units feature cylindrical roller bearings and splash lubrication for maximum life.

EasyAir Rotary

EasyAir Rotary

The EasyAir Rotary Factory Blower Package System is an improved design based upon the popular EASYAIR 8000 package. The EasyAir Rotary system provides performance engineering in a standard package. It is produced for vacuum or pressure applications, enabling simple, on-site installation.

Roots truck mounted

Truck Mounted Blowers

The Roots TRI-NADO™ TM Truck-Mount, Tri-Lobe Vacuum Blowers have been redesigned to incorporate the latest technology for reduced noise and vibration.

Learn more about our Roots Blowers

Reliable performance for industrial applications


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