How to classify oil-free, micro-oil and injection of air compressors

Air compressors can be divided into three categories: oil-free, micro-oil and oil-sprayed according to lubrication and compression methods. The main difference lies in whether oily medium is used during the compression process and the oil content. Granklin water-lubricated single-screw air compressor is an oil-free type. Water films replace traditional oily lubrication to avoid the risk of oil pollution from the root cause.

oil free compressor: No oily medium is required during the entire compression process, and water, air or other non-oily substances are used to achieve sealing and lubrication. Granklin air compressor uses the precise engagement of a single screw and a star wheel plate, combined with dynamic water film technology, to form a stable lubricating layer in the compression chamber to ensure that the output air is completely oil-free. It is suitable for medical, food, electronics, etc. Scenes with extremely high requirements for cleanliness.

Micro-oil air compressor: A small amount of oily medium will be used during the compression process. Although it is processed through the oil separation device, the output air may still contain traces of oil. Such equipment is mostly used in general industrial scenarios, and the oil system needs to be maintained regularly to control the risk of oil pollution.

oil injection air compressor: During compression, a large amount of oily medium is sprayed directly into the compression chamber to cool, seal and lubricate through the oil. The output air needs to undergo multi-stage oil separation and filtration, and oil may still remain. It is suitable for heavy industry scenarios with low air quality requirements.

Thanks to its oil-free compression characteristics and water lubrication technology, Granklin air compressors can ensure efficient air supply while completely avoiding the risk of pollution to equipment and products caused by oil pollution. They are especially suitable for precision manufacturing fields that require high cleanliness air sources.