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Oil Free Compressors

100% oil-free compressed air.



100% oil-free compressed air. The basic principle of the oil-free screw 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.

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


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 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


Ingersoll Rand Centrifugal Compressors

When evaluating a compressed air system, it is important to consider the total lifecycle costs, including the initial investment, energy consumption and maintenance costs. Heat-of-compression technology coupled with the inherent efficiency and reliability of an MSG® TURBO-AIR® compressor allow the TDP to deliver premium performance at a low total cost of ownership for the complete compressor/dryer package.

Ingersoll Rand Web Site


Sullair OFS Series

Sullair OFS Series compressors are independently certified for Class 0 oil-free performance in accordance with ISO 8573-1. The reduced risk of contamination helps improve your business operations and profitability.

Sullair OFS Series compressors are the perfect choice for applications requiring completely oil-free air, including:

  • Pharmaceuticals
  • Food and beverage manufacturing
  • Electronics
  • High-technology manufacturing
  • Textile manufacturing

Sullair Web Site


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


Hitachi / Sullair SRL OIL FREE

2-44 hp

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Hitachi /Sullair DSP OIL FREE

30-300 hp

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Sullair Oil Free OFS75

100-350 hp

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Sullair Oil Free DA-13

100-200 hp

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Sullair Portable Oil Free Rotary Screw Air Compressor

1550 cfm at 125 psi

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TURBO-AIR Centrifugal Compressed Air Systems Ingersoll Rand

125-5650 hp

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TURBO-AIR 2000 Centrifugal Compressors Ingersoll Rand

125 -350 hp

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TURBO-AIR 3000 Centrifugal Compressors Ingersoll Rand

400 -800 hp

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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 and repair service, 24 hours a day, 7 days a week. Our technicians are available around the clock to perform maintenance or repairs on your compressed air equipment.

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