Oil-free vs Oil-injected Air Compressors: What Is Right for You?

In the world of air compressors, choosing between oil-free and oil-lubricated models can be confusing and daunting.

Both types have unique benefits and limitations and making the right choice will depend on your industry or specific application needs and requirements.

This blog will help you understand the critical differences between oil-free and oil-injected air compressors and provide you with the information you need to make an informed decision.

Whether you're a professional mechanic or a manufacturing plant manager, this article will give you a better understanding of the pros and cons of each type and help you determine which one is right for your industry application.

Oil-free vs. Oil-injected Air Compressors: An Overview

Oil-free and oil-injected air compressors are broadly two of the most common types available on the market. While both types serve the same purpose of delivering compressed air, the difference in their operation can significantly impact your air compression system's efficiency, maintenance intervals, and operating cost. Ultimately, the choice between oil-free and oil-injected air compressors will depend on your specific needs and requirements. So, take the time to carefully consider your options, and choose the one that is right for you!

Does That Mean That Oil-Free Has No Oil At All?

Oil-free air compressors will certainly not contain oil in their element or anywhere in path of process air being compressed, but they still have oil for bearings and gear – mechanical drive system to lubricate and run.

The gearbox is an essential part of the air compressor as it drives the two compressor elements (in case of Oil-free) with the help of drive motor. Regular maintenance checks are necessary to keep the gearbox lubricated and operating smoothly, as replacing these components can be expensive. The oil in the gearbox provides lubrication to the internal gears, bearings, and other components, and it is cooled and filtered before being re-circulated for cooling the element or gearbox parts.

However, the oil remains totally absent in the compressed air circuit operating in a completely different loop which ensures highest air quality delivered for your application. Also simplifying day to day maintenance activities by reducing service interventions, improving efficiency by avoiding unnecessary line filter pressure drops.

Oil-free vs. Oil-injected Air Compressors: Major Differences

The Presence of Oil

Oil-free air compressors are precisely what they sound like - they don't have any oil mixed in the compression chamber. Instead, they rely on teflon-coated screw elements and 2 stage compression (2 elements) to function and generate compressed air without compromising air quality.

On the other hand, oil-injected air compressors use oil to lubricate the moving parts and keep the compressor running smoothly. This oil also helps to cool the element and acts as sealant, removing contaminants from the stream.

Maintenance

Maintenance of air compressor matters a lot when you are deciding on type of compressor. Oil-free compressors generally require less maintenance, as there is no need to change large quantities of oil or separators, oil filters etc. In contrast, oil-lubricated compressors require more maintenance, including frequent oil changes and cleaning of the lubrication system.

Application

Oil-lubricated compressors are typically more found in industries where air quality is not much of a concern, like – cement, metal, plastic or general manufacturing. In contrast, oil-free compressors are better for applications where clean, oil-free air is a top priority.

Oil-Free Vs. Oil Air Compressors: What Are The Suitable Industries?

Industries using oil-free air compressors:

Industries using oil-lubricated air compressors:

Oil-Free Vs. Oil-Injected Air Compressors: Which One Is Right for You?

Choosing between oil-free and oil-lubricated air compressors can be difficult, as both types have unique benefits and drawbacks. When deciding which one is right for you, it's essential to consider several factors, including the specific needs of your application, the type of work you will be performing, and your budget. An oil-free compressor may be the best choice for applications where clean, oil-free air is a top priority, such as in the food and beverage industry, pharmaceuticals, and electronics manufacturing. In addition to Class 0 air quality benefit, Oil-free compressors are also chosen for lower maintenance and operating energy cost as well as lower environment impact. On the other hand, an oil-lubricated compressor may be more suitable for general manufacturing where capital cost is one of the main criteria of selection.

Conclusion

In conclusion, choosing a suitable air compressor for your business and industry ensures efficiency, performance, and longevity. With the wide range of oil-free and oil-lubricated air compressors, it can be challenging to make the right choice. That's where Atlas Copco comes in.

As a leading brand in manufacturing and supplying of air compressors and related accessories, Atlas Copco offers a comprehensive range of oil-free and oil-lubricated air compressors to meet the needs of any industry. If you're confused about which one to choose, don't worry. The experts at Atlas Copco are always on hand to help you select the most suitable air compressor.

Browse through a comprehensive range of Atlas Copco oil-free and oil-lubricated air compressors today, and if you're still unsure, contact the experts at Atlas Copco for guidance. Let's find the perfect air compressor for you and your business.

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Oil-free vs Oil-injected Air Compressors: What Is Right for You?

Oil-free vs. Oil-injected Air Compressors: An Overview

Does That Mean That Oil-Free Has No Oil At All?