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Aq series

AQ water-injected oil-free screw compressors

Water-injected oil-free screw compressors

The AQ water-injected screw compressors meet your need for pure oil-free air. They deliver best-in-class energy efficiency for applications that demand reliability and purity.

AQ water-injected oil-free screw compressors

Key technical specifications

Capacity FAD l/s

0 gal/min - 0 gal/min

Capacity FAD

0 cfm - 0 cfm

Working pressure

105 psig - 185 psig

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AQ 15-55 VSD/AQ 30-55 (15-55 kW / 20-75 hp)
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AQ Water Injected Screw Compressor

The AQ eliminates the risk of contamination with 100% oil-free air for applications that require the highest levels of purity like - medical - pharmaceutical production - food production - critical electronics The water-injected screw compressors, water-cooled or air-cooled, meet your needs for quality air with high-pressure capability and energy efficiency.

AQ 55 VSD compressor

100% safe, high quality air

 Atlas Copco’s AQ oil-free compressors eliminate the risks of oil contamination. Whether your activities are in pharmaceutical production, food & beverage, critical electronics or in a similarly exacting industry, air quality is paramount for your end product and production process.

Enjoy lower operating and maintenance costs with an ISO-8573-1 CLASS 0 (2010) certified compressor.  
Zero risk
CLASS 0 means zero risk of contamination; zero risk of damaged or unsafe products; zero risk of losses from operational downtime.

Engineered to meet your needs

At Atlas Copco we aim to provide you with compressors that fulfill and even exceed your expectations and demands. Built as the result of decades of experience in oil-free design and manufacturing, the AQ range of oil-free screw compressors gives you all of this experience and knowledge in a class leading package.

Variable Speed Drive - Driving down your energy costs

Over 80% of a compressor’s lifecycle cost is taken up by the energy it consumes. Moreover, the generation of compressed air can account for more than 40% of a plant’s total electricity bill. To cut your energy costs, Atlas Copco pioneered Variable Speed Drive (VSD) technology in the compressed air industry. VSD leads to major energy savings, while protecting the environment for future generations

Advanced monitoring

The Elektronikon® controller can be adapted to your specific needs with extra sensors, digital contacts, fieldbus, Internet and SMS communication functions. Optimize the operation of your complete compressor room by using the ES multiple compressor controller.

More control
To maximize energy efficiency, the Elektronikon® controls the main drive motor and regulates system pressure within a predefined and narrow pressure band.

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Technical benefits

Advanced control and monitoring
The Elektronikon® controls the main drive motor and regulates system pressure within a predefined and narrow pressure band.
High efficiency
The superior cooling capability of water ensures that heat is removed efficiently at the source to generate more air per kW of power.
AQ compressor


Energy savings
VSD versions save up to 35% of energy by eliminating load/no load transition losses. Precise pressure control allows a tighter pressure band and a lower average working pressure for reduced energy consumption.
Quiet operation
AQ compressors are supplied in a sound-insulated canopy making them ideal for most working environments. No need for a separate compressor room.


Technical specification

Technical Property Value

Capacity FAD l/s

0 gal/min - 0 gal/min

Capacity FAD

0 cfm - 0 cfm

Working pressure

105 psig - 185 psig

Installed motor power

20 HP - 75 HP

Capacity FAD m³/min

3.3 m³/min - 9.1 m³/min


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