Oil Lubricated Air Compressors

Advantages of oil-lubricated air compressors

These compressors are lubricated with oil which prevents the bearings from rusting or seizing up, the lubrication properties of the oil also helps to keep the motor cool so that less heat and noise pollution is generated.

The above benefits mean oil-lubricated compressors are reliable, durable and have a longer product lifespan. It also demonstrates why oil-lubricated compressors are ideal in industrial settings to power heavy-duty applications and cope with factory conditions.

What kind of oil should I use in my air compressor?

Oil is really important for the efficient functioning of a compressor, especially oil-lubricated ones. You should use oil that is recommended by the air compressor manufacturer or your service provider, as there are pros and cons to different types of oil depending on the make and model of your compressor. Using the correct oil during routine servicing also prevents the void of the compressor’s warranty.

There are different types of oils available on the market:

Synthetic air compressor oils – This type of synthetic oil is more expensive, but it doesn’t degrade like other oils and protects better against wear and tear, therefore working more efficiently within the air compressor engine. It is recommended for high-performance industrial compressors.

Petroleum-based (mineral oil) air compressor oil – This is the cheaper option and the most common type of oil. It works well for multiple kinds of compressors and depending on the application of the system, this oil can also be used as synthetic or food oils.

Motor oil – Motor oil is not suitable for air compressors because it contains abrasives and detergents. These detergents in the oil are used to keep oil sludge from building up on car and truck engines, whereas air compressor engines require this oil to stick around to lubricate the moving parts.

Food grade compressor oil – This oil is used for compressors supporting Food & Beverage, Packaging, Pharmaceutical and other cleanroom environments in circumstances where the applications being powered do not require compressed air to come into direct contact with the product – which is why oil-lubricated machines can be used! Although not intended, there may be a slight chance of the compressed air accidently coming in contact with the product, which is where food-grade compressor oil can be utilised to follow regulations.

How often should I change the oil in my air compressor?

This will depend on your compressor type as well as how much you use your compressor, and the oil change is usually carried out in connection with recurring maintenance.

Mineral compressor oil should be changed after every 4000 hours of operation and synthetic compressor oils can usually be operated twice as long. However, depending on the installation and plant room conditions, these oil change intervals may vary – this is something your service provider can help you out with.