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Oil-Free Compressors

100% oil-free compressed air.



100% oil-free compressed air. The basic principle of the oil free compressor is similar to the oil-injected compressor, except no oil is injected during compression.


No oil means that there is no oil for sealing the rotors and for cooling the compressed air, elements and rotors. The rotors don’t touch each other, and the air gap between the two is very small, which translates into optimal performance.

These oil free compressors are ideal if your application requires 100% oil-free air.

Oil free compressor

Sullair / Hitachi Oil Free SRL SERIES

Hitachi SRL Series scroll compressors are built on over 100 years of compressed air technology. The ultra-reliable SRL Series features a 100% oil-less design, making it ideal for your pure air needs. Standard design features make Hitachi Scroll compressors some of the quietest on the market. A small footprint and easy panel accessibility allow Hitachi Scroll compressors to fit in areas that other compressors can’t.

Sullair Hitachi Web Site


Sullair / Hitachi DS SERIES

Oil-Free Rotary Screw Air Compressor 60 – 100 hp (47-75 kW) Compressors

Introducing the New DS Series Oil-Free Rotary Screw Air Compressor by Sullair.  Engineered for industries demanding pristine air quality, this compressor stands as the optimal choice for a numerous applications including pharmaceuticals, food and beverage manufacturing, electronics, high-tech production, textiles, robotics, automotive, and painting.  Compliant with the stringent ISO 8573-1 Classes, particularly Class 0 for industries necessitating absolute air purity, the DS Series surpasses expectations, ensuring oil-free air where it matters most.  Powered by the renowned Hitachi Two-Stage Air End, designed for durability and efficiency, and boasting a suite of features such as the Enhanced Sullair Touch Screen Controller and the innovative Patented Oil Mist Remover, this compressor redefines reliability, ease of maintenance, and performance monitoring.  With Airlinx® Remote Monitoring, stay connected to your compressor’s operations in real time, mitigating risks of unplanned downtime and optimizing overall productivity.

Sullair Hitachi WEB Site

Oil free compressors

Sullair / Hitachi DSP SERIES

Oil-Free Rotary Screw Air Compressor 30 – 300 hp (20 – 240 kW) Compressors

Hitachi DSP Series rotary screw compressors are the premium, oil-free air solution for your application. With Hitachi, reliability comes standard, making downtime a distant memory. Hitachi also understands that air quality isn’t a nice-to-have, it’s a necessity—that’s why Hitachi DSP compressors are certified ISO Class 0. Build the foundation of your compressed air system with Hitachi DSP Series compressors. You’ll be glad you did.

Sullair Hitachi Web Site


Centrifugal Compressors

Efficient aerodynamics make centrifugal compressors ideal for a variety of industrial applications.  Centrifugal compressors produce pressure by transferring energy from a rotating impeller to the air.  Capacity can be controlled by adjusting the inlet guide vanes—closed to reduce and open to increase flow.

  • Oil Free Centrifugal compressors feature a simple, effective design that outperforms other compressors in delivering trouble-free operation and the lowest cost of ownership
  • Certified ISO 8573-1 Class 0 oil-free air for purity that meets exacting standards.
  • Low-to-no vibration without any special foundation required.
  • Superior control through a variety of controller system options.
  • Excellent reliability over extended periods with minimal maintenance.
Compresseur centrifuge - Compresseurs centrifuges

Sullair OFD1550

The Sullair OFD1550 Tier 4 Final air compressor is built for long-lasting performance and brings Class 0 oil-free air directly where it is needed—plantside, refineryside and your jobsite!

The OFD1550 provides 100% Class 0 oil-free air in a package designed for both short-term and longer-term usage as well as key features including:

  • State-of-the-art 7-inch color Sullair Touch Screen Controller (STS)
  • Ability to operate in temperatures ranging from -20°F to 115°F
  • High altitude capability (up to 12,000 ft. above sea level)

Sullair Web Site

Did you know that Comairco has been in business for 50 years?

Consider long term renting instead of buying!

Oil free compressor

Hitachi / Sullair SRL OIL FREE

2-44 hp

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Oil free compressors

Hitachi /Sullair DSP OIL FREE

30-300 hp

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Hitachi /Sullair DS OIL FREE

60-100 hp

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PIC_Oil Free Cutaway

Sullair Oil Free DA-13

100-200 hp

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Compresseur centrifuge - Compresseurs centrifuges

Sullair Portable Oil Free Rotary Screw Air Compressor

1550 cfm at 125 psi

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At Glance Cover Page

FS-Elliott Compressed Air Solutions

4 pages brochure FS-Elliott Product Line

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Polaris Cover page

FS-Elliott Polaris Industrial Air Compressors

11 pages brochure Polaris + Serie
250hp to 2600hp

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Used equipment

We have a wide range of air compressors, air dryers, tanks and outdoor mobile stations designed for your air compressors, as well as other used products to help you out in emergency situations.

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Rental Service

Portable compressors ranging from 60 CFM to 1600 CFM and electric compressors ranging from 5 hp to 350 hp are available at any time, whether for permanent lease, short-term rental or simply to respond to an emergency.

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Technical service

COMAIRCO offers an emergency compressed air maintenance and compressors maintenance service, 24 hours a day, 7 days a week. Our technicians are available around the clock to perform compressed air installation and compressors installation or repairs.

Find out more Camion Comairco