Oil-Free Compressors

100% oil-free compressed air.

When compressed air comes into direct contact with your product, air quality is critical.

Compressors

Oil-free air compressors are designed for applications where even microscopic oil contamination is not acceptable — helping manufacturers protect product integrity, meet regulatory requirements, and reduce operational risk.

Why choose oil-free compressed air?

Eliminates the risk of oil contamination
Supports ISO 8573-1 Class 0 air quality requirements
Ideal for regulated and sensitive production environments

Oil-Free Rotary Screw Compressors

Designed for continuous-duty industrial applications, oil-free rotary screw compressors deliver reliable, high-quality air for operations where contamination is not an option.

They are commonly used in manufacturing, food processing, and pharmaceutical environments requiring consistent airflow and long-term reliability.

Oil-Free Scroll Compressors

Oil-free scroll compressors provide a compact, quiet, and efficient solution for applications with lower air demand.

They are ideal for laboratories, medical facilities, and clean environments where space, noise, and air purity are critical.

Oil-Free Centrifugal Compressors

Oil-free centrifugal compressors are engineered for large-scale industrial operations with high air demand.

Known for their efficiency and reliability, they are widely used in facilities where uptime, energy performance, and air quality are essential.

SRL16.5_Hitachi oil free Sullair Air Compressor

Sullair Oil Free SRL SERIES

Sullair 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 Sullair 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.

Hitachi Global Air Power Website

Sullair DS SERIES

Oil-Free Rotary Screw Air Compressor 60 – 600 hp (47-450 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 Sullair 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.

Hitachi Global Air Power Website

DSP45 Sullair Hitachi Oil-Free air compressor

Sullair DSP SERIES

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

Sullair DSP Series rotary screw compressors are the premium, oil-free air solution for your application. With Sullair, 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 Sullair DSP compressors are certified ISO Class 0. Build the foundation of your compressed air system with Sullair DSP Series compressors. You’ll be glad you did.

Hitachi Global Air Power Website

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.

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

Why work with Comairco?
Our team helps you select the right oil-free technology based on your application, air quality requirements, and long-term operating costs — not just horsepower.

Looking for detailed specifications and performance data?
Download our oil-free compressor brochures below to explore each technology in more detail.

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

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