The difference between air compressor without oil machine and oil injection machine

The difference between air compressor without oil machine and oil injection machine is mainly reflected in the following aspects:

1. working principle

1. oil-free air compressor: no oil is involved in the compression process. It usually uses special high temperature resistant materials such as Teflon or molybdenum disulfide to solve the high temperature problem in the compression process, so as to achieve oil-free compression.
2. Oil-injected air compressor: Lubricating oil will be injected during the compression process, which can not only play the role of lubrication and cooling, but also reduce noise and increase air tightness, thereby improving the volumetric efficiency of the air compressor.

2. oil content

1. oil-free air compressor: The compressed air discharged is completely free of oil, or has a very low oil content, usually 0.01ppm. This kind of air compressor is especially suitable for industries with high requirements for compressed air quality, such as food, medicine, etc.
2. Oil injection air compressor: its discharge of compressed air will contain a certain amount of oil. This makes it more suitable for certain applications that are not sensitive to oil, such as the steel industry, non-ferrous metal smelting and manufacturing.

3. Maintenance and Maintenance

1. oil-free air compressor: Since it does not involve the use of oil, there is no need to replace the lubricating oil regularly, which reduces maintenance costs. But at the same time, due to its internal high temperature, more frequent inspection and maintenance may be required to ensure the normal operation of the equipment.
2. Oil-injected air compressor: It is necessary to replace the lubricating oil and filter element regularly, and the maintenance cost is relatively high. However, the use of lubricating oil also extends the service life of the equipment and reduces wear.

4. use environment and performance

1. oil-free air compressor: suitable for environments with high air quality requirements, such as food and pharmaceutical industries. At the same time, due to its oil-free characteristics, it is also suitable for some special environments, such as high temperature and high humidity.
2. Oil injection air compressor: more suitable for some of the oil is not sensitive to the environment, such as industrial manufacturing. Its stable compression process and efficient cooling performance make it excellent in certain high-load applications.

In summary, there are significant differences between oil-free air compressors and oil-injected air compressors in terms of working principle, oil content, maintenance, and use environment and performance. The choice of which type of air compressor should be based on specific application needs and scenarios.