What are the types of mainstream screw air compressor What is the difference

In the compressed air industry, one of the most important developments is the use of oil-filled and oil-free air compressors. Each has advantages, depending on the application. Both are major markets. A key difference is that oil-free compressors are not as susceptible to contamination as oil-injected compressors, which are suitable for industries with less stringent air purity requirements.

water lubricated oil free air compressor:

this "screw air compressor" does not need to be lubricated with lubricating oil, but uses water to lubricate and cool the air compressor head. The specific oil-free compressor you need depends on the level of air purity you need to achieve.

oil injection air compressor:

these devices use oil-lubricated air to compress the chamber, lubricate the parts, and seal them in the air. These are the most common compressor types with lower initial and maintenance costs and longer life expectancy