Oil-free VS oil-injected air compressor| 5 key differences. Wrong choice may destroy the product!

Still struggling with which air compressor to choose? Today, use the most intuitive comparison to help you avoid difficulty in choosing! Whether it’s a food factory or an electronics workshop, you will know how to choose after reading this article ~

1. Essential differences in working principles

1. The clean way of oil-free air compressor

Dry screw or centrifugal technology is used to achieve gas compression through a precisely fitted rotor.

2. Lubrication philosophy of oil-injected screw

A dynamic oil film is formed by injecting mineral oil (temperature 35-45 ° C) to achieve sealing, cooling and noise reduction.

2. Three major advantages of oil-free machines

1. Absolutely clean air

Level 0 oil-free certification (ISO 8573-1 Class 0); mandatory requirements for the pharmaceutical/food/electronics industry; avoid product contamination (such as chip oxidation, food spoilage);

2. Avoid the trouble of oil mist

Expensive oil mist filters are no longer needed, and the air in the workshop is fresher (it is easier to meet environmental standards);

3. Long service life

The water-lubricated model can last for 100,000 hours, and there is no carbon deposition problem (the fuel injector must be cleaned in 5000 hours);

3. The irreplaceability of the fuel injector

1. The price is so fragrant

The same power is 60% cheaper than oilless oil, making it the first choice for small factories;

2. Durable quality

Continuous work is not squeamish, and can carry it at-20℃ to 50℃;

3. Simple maintenance

Any air compressor manufacturer can repair it with low professionalism;

The technical game between these two models is essentially a dynamic balance between efficiency and cleanliness, and requires systematic decision-making based on industry characteristics, working conditions and technological development trends.