What is oil-free compressed air?

Oil-free compressed air refers to compressed air that does not add any oil lubrication during the compression process using an air compressor. According to ISO8573 standards, oil-free compressed air must meet certain requirements, that is, the oil content must be less than 0.01 mg/m & sup3;, reaching Class 0 level.

The working principle of oil-free air compressor mainly includes the steps of air intake, compressed air, air cooling and air discharge. In the intake stage, the air enters the compressor after being filtered by the filter screen to prevent dust, moisture, etc. from entering and causing damage to it. Then, the air entering the compressor is sucked in by the compressor extractor. Under the action of the high-speed rotating rotor, the gas is gradually compressed to a certain pressure, and heat is generated due to compression, resulting in an increase in gas temperature. In order to avoid damage to the compressor caused by overheating of the gas, a cooling system is usually provided inside the compressor to cool down the compressed high-temperature gas. Finally, the compressor internal through the outlet valve will be compressed air discharge, for industrial and civil use and other fields.

Oil-free air compressors are widely used in many industries, such as medicine, electronics, food and beverage, and chemical industry. These industries have higher requirements for air quality, and oil-free compressed air systems can meet their cleanliness standards and eliminate the possibility of product contamination by oil. In addition, the oil-free air compressor also has the advantages of low maintenance cost, environmental protection, safety and reliability. Since oil-free air compressors do not add any lubricating substances during operation, advanced material technology and manufacturing processes are needed to ensure the strength of the body and the self-lubrication inside the compression system to ensure its safety and life.

In general, oil-free compressed air is a kind of high-quality, high-cleanliness compressed air, which is suitable for industries and fields with high air quality requirements.