Project Description

Oil-free air compressors and oil-less air compressors.

Choose The Right Air Compressor - Oil Free or Oil Less

When it comes to choosing between an oil free air compressor or an oil less air compressor, you have both options from Gardner Denver. Gardner Denver oil free and oil less compressors feature cutting edge technology and are highly engineered product that result in pure, quality compressed air.

Oil free compressors have no oil present within the compression chamber. Oil less compressors contains no oil throughout the entire system, nullifying the risk of any oil leaking into the air.

Energy efficient compressors provide customers with low operating costs and mitigate the risk of contamination. No oil in the compression chamber minimizes downstream filtration requirements and pressure drops.

Some of the most common industries that utilize oil free or oil less compressors from food and beverage, pharmaceutical, electronic, healthcare, power generation and more. Models from Gardner Denver are ISO 8573-1 Class certified.

Oil Free Compressors Versus Oil Less Compressors: There’s A Difference

Does your application requires zero oil in your compressed air system? An oil less air compressor is what you need. Need a compressor without the risk of contamination within the compression chamber? The oil free air compressor is right for you.

For instances where the consequences of oil contamination is too high, oil free compressor technology is a must. If you are trying to achieve Class 0, which indicates zero oil present within the compressor, an oil less compressor is going to be best suited for your job.

Some of the key benefits of utilizing either an oil free or oil less air compressor include:

  • Compliant with regulations - many industries, especially food and beverage and pharmaceutical, have strict regulations on compressed air.
  • Reduction in maintenance costs with the lack of oil
  • Reliability - produces high quality air

Some industries have developed extremely stringent quality standards. Within some applications, even the smallest contamination will cause product spoilage which can mean a significant loss of revenue and significant risk.

Lubrication in oil free compressors normally occur within the bearings and gears, which are completely isolated from the compression chamber so there is no risk of contamination. This is the case for both oil free rotary screw and rotary lobe compressors.

The Rotary Screw Compressor, screw compression element main parts comprise male and female rotors that move towards each other while the volume between them and the housing decreases.

The screw element is not equipped with any valves and there are no mechanical forces to create any imbalance. It can therefore combine a large flow rate with small exterior dimensions.  Since the screw compression element is the heart of the compressor CompAir keeps the design and manufacture in-house, using the latest CNC rotor grinding machinery, coupled with online laser technology for the utmost rotor profile accuracy.

An oil-free air compressor has no oil present in the compression chamber. An oil-less air compressor contains no oil throughout the entire system, nullifying the risk of any oil leaking into the air. Each highly engineered product results in pure, quality compressed air.

Select from several different oil-free air compressors and oil-less air compressors based on your jobsite needs, all with breakthrough innovations and advanced compressor technologies.

Both oil-free air compressors and oil-less air compressors are helping industries across the globe to exceed quality standards by providing contaminant free air. These energy efficient machines provide customers with lower operating costs and mitigate risk of contamination. The food and beverage, pharmaceutical, electronic, healthcare, and power generation applications greatly benefit from oil-free or oil-less air compressors.


With 100% contaminant free air, we are confident that your compressed air system will run as clean and efficient as possible.


Some processes need clean, dry, oil-free air that cannot risk contamination. With an oil-free compressor, you get peace of mind in your system and for your business.


A true oil-free compressor does not have oil in the compression chamber. This minimizes downstream filtration requirements and pressure drops, which directly translates into energy savings and a lower total cost of ownership.

ULTIMATE Oil-Free Compressor

Ultima is a ground-breaking oil-free compressor. The design of this all new compressor range from Gardner Denver utilizes a low pressure and high pressure dry screw airend. Each airend is individually driven by a variable speed, permanent magnet synchronous motor. This offers exceptional levels of efficiency versus traditional oil-free technology.

The unique design of Ultima has allowed us to combine ultimate performance with the ultimate efficiency. The Ultima delivers a 37% smaller footprint than a conventional two stage oil-free compr

To ensure optimum performance the Ultima comes standard with iConn remote data analytics.