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Understanding Oil Free Air Compressors

gas air compressor oil free

If you own an air compressor, you probably have heard of oil-free air compressors. But what exactly are they, and how are they different from traditional air compressors? If you’re looking for a more energy-efficient and low-maintenance option, oil-free air compressors might be the perfect choice for you. Let’s explore what they are, how they work, and what benefits they offer.

A Look into Oil-Free Air Compressors

What are Oil-Free Air Compressors?

Oil-free air compressors, also known as “oil-less” compressors, are designed to provide compressed air without the use of oil lubrication. Instead, they use materials such as Teflon, or stainless-steel coatings to reduce friction and wear between the moving parts. In other words, they operate in a dry environment, which eliminates the need for oil lubricants.

How Do They Work?

Oil-free air compressors utilize techniques like air-cooling or water-cooling mechanisms to keep the compressor at the right operating temperature. Oil-less compressors can have one or two cylinders. In single-cylinder compressors, the piston compresses the air into the main cylinder that compresses air to proper pressure and size. In a two-cylinder compressor, one piston draws air and sends it to the second piston/ cylinder for further compression, which means more pressure while ensuring the compressor does not build up too much heat.

What Benefits Do Oil-Free Air Compressors Offer?

Oil-free air compressors are a popular choice for many industries due to their benefits. In addition to being more energy-efficient and low-maintenance, they can significantly reduce the chances of oil contamination of the compressed air. This is especially important in industries such as food and beverage or medical facilities, where any oil contamination could be a major safety concern. Another benefit is its portability. Compared to lubricated air compressors, oil-free air compressors are lighter, more compact, and easier to move around. Lastly, due to dry conditions inside oil-free compressors, they can have a longer lifespan, and require less maintenance and repairs.

Are There Any Disadvantages?

While oil-free air compressors offer significant advantages, there are a few disadvantages to consider. They tend to be more expensive than oil-lubricated compressors, especially those with advanced features and controls. Additionally, they can be noisier in operation because of higher speeds and less dampening due to less lubrication in the system. Lastly, oil-free air compressors are not very suitable for heavy-duty, high-pressure operations.

Is an Oil-Free Air Compressor Right for You?

Deciding what type of air compressor to buy depends on the function and environment. An oil-free compressor is right for many individuals. An air compressor expert can help determine what type you should buy.

Air Compressors in Portland, Oregon

Oil-free air compressors are an excellent choice for most industries that require efficient and effective compressed air. They are more energy-efficient, low-maintenance, and can significantly reduce the chances of oil contamination of the compressed air. However, they have some downsides, like higher purchase costs, noise levels, and being unsuitable for heavy-duty uses. When choosing an air compressor, it’s important to consider your compressors operating environment, the job you plan to use it for, and how much maintenance is required. With all the information presented, we hope you can better understand oil-free air compressors.

For more information, contact Pacific Air Compressors. We can help you make the right purchasing decision. We also provide air compressor installation and maintenance services. Shop our online store, contact us online, or call at (503) 674-2744.


Dear valued customers,

We normally keep all our inventory in stock. However, due to backorders from many of our vendors and parts shortages, some items that we have listed may not be in stock or could have a long lead time although they show as available on our store. If you need your items right away, please call or e-mail to ensure availability.