Air Quality: An overview of Oil Free Technologies

Do I need Oil-Less or Oil-Free compressed air?

The decision to purchase an Oil-Less compressor or an Oil-Free compressor is based on several factors whether this is a personal preference to maintain the efficiency and life of the compressed air network system, air tools, pneumatic equipment and processing equipment or to comply with industry standards, directives or guidelines.

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Do I need Oil-Free compressed air?

The decision to purchase an Oil-Less or Oil-Free compressor is based on several factors on whether you need to maintain the efficiency and life of equipment been used to comply with industry standards, directives or guidelines.

There are several technologies available to provide the specific quality of air required however, there is some confusion to the class of air required and how the air quality is defined.
Essentially Oil-Free air is generated without any lubricant (oil) coming into contact with the compressed air, whereas Oil-Less air is generated by conventional methods (where oil and compressed air is in direct contact) and then oil removal systems are applied to reduce the oil residue within the final product.

There are many industries and application where the use of an Oil-free compressor is required: eg. Dental, Medical, Pharmaceutical, Laboratories, 3d-Printers, etc.

The Oil free range can be water and particle free by making use of dryer & filters. These compressors can be used as part of a system requiring HTM 2022 compliance or to provide Class 1 and Class 0 compressed air in accordance to EN ISO 8573-1

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The need for a high class of air is paramount for both applications and they are only set apart with regards to their dew point value. Piston, scroll and rotary screw compressors are all utilised in this applications where CLASS 0 is the requirement option.

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A number of important changes to compressed air standards within food applications have been made recently, the following summary highlights any areas which could impact on to existing or new equipment. Whilst these changes are at present recommendations only they are to be read in conjunction with the mandatory HACCP Food Grade Compressed Air which is a UK law from January 2006 for England, Scotland, Wales and Northern Ireland. Click here to find out more

European food hygiene laws are introduced into UK law and are the key drivers to compliance by food business operators. Compliance with the law began on: England - 1 January 2006 Scotland, Wales and Northern Ireland 11 January 2006 Click here to find out more

The highest manufacturing standards are applied to guarantee the maximum performance and reliability. A proven technology developed to compress air in absolute absence of oil, two spirals turning without any metal-to-metal contact in between intake air through a suction chamber, compresses it in 3 successive phases and deliver it at 8 or 10 bar or pressure.

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