Oil free compressed air: Factors to consider

21 November, 2023

In contrast, screw compressors are supplied in standard configuration with a sound enclosure, which guarantees quieter operation in environments requiring a very low noise level. For the centrifugal compressor, the sound enclosure is optional, as the centrifugal technology is inherently quieter.

The design of the centrifugal compressor is compact, enabling simple installation alongside a range of standard options pre-mounted on the machine, including air filter, condensate circuit, water manifold with individual flanged connections and control panel with integrated starter.

The installation of a screw compressor is even easier still, with a plug and play configuration.

Lifetime maintenance

Service costs are typically lower for oil-free solutions than oil-lubricated models. Whole life costs are reduced because businesses able to save on the cost of oil replacement.

Unlike oil-lubricated systems that require frequent oil change intervals throughout their service life, there is also no need to purchase equipment that would clean and separate oil from air, such as oil separators, filtration equipment and condensate treatment.

All oil-free compressor models are now being designed to optimise service and repair costs, with easy access to major components, but compared to rotary screw compressors, a 30-35% saving is estimated on centrifugal technology. This is in part due to the compression unit having fewer components subject to wear and tear, which also guarantees greater performance consistency over time.

Another benefit to consider with oil-free technology is that, with many businesses faced with ambitious sustainability goals, deciding on an oil-free solution provides the most eco-conscious choice too, helping to contribute towards a facility’s green credentials. For example, while oil-lubricated compressors mean oil or oil-contaminated condensate will need to be disposed of, impacting the environment, this is not a concern with oil-free technology

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