The oil mist in compressed air mainly comes from the lubrication system of the compressor and the natural oil in the air, while the water vapor comes from the condensation of water vapor in the air during the compression process. If these liquid pollutants enter the pneumatic tools directly without treatment, they will have a series of negative effects:
Reduced work efficiency: The presence of oil mist and water vapor will increase the air resistance inside the pneumatic tools and reduce the effective flow of compressed air, thereby affecting the response speed and operating efficiency of the tools.
Cause rust and corrosion: Water vapor is a catalyst for metal corrosion, and some components in oil mist may also corrode the metal surface. Pneumatic tools that are exposed to oil mist and water vapor for a long time are prone to rust and corrosion of internal metal parts, resulting in loose parts and seal failure, which in turn affects the accuracy and life of the tools.
Impact on product quality: In the field of precision manufacturing, such as electronic assembly, food processing and pharmaceutical manufacturing, the pollution of oil mist and water vapor may also cause direct damage to the products, such as contaminating electronic components, affecting food hygiene, reducing the purity of drugs, etc., thereby affecting product quality and corporate reputation.
Small compressed air filters: the key to efficient purification
Facing the threat of oil mist and water vapor in compressed air, small compressed air filters have become an important line of defense for pneumatic tool protection with their unique filtering mechanism and efficient purification ability. These filters usually use specially designed filter materials, such as activated carbon, glass fiber, polymer materials, etc. These filter materials have excellent adsorption, separation and filtration properties, and can effectively remove oil mist and water vapor in compressed air, ensuring that the compressed air entering the pneumatic tool is dry and pure.
The secret of special filter materials
Activated carbon: Activated carbon has extremely strong adsorption capacity due to its porous structure, and can efficiently adsorb oil mist, tiny particles and harmful gases in compressed air to ensure the purity of air quality.
Glass fiber: Glass fiber filter material has excellent high temperature resistance and corrosion resistance, and can effectively filter out solid particles and liquid pollutants in compressed air, while maintaining a low pressure drop to ensure efficient circulation of compressed air.
Polymer materials: Some polymer filter materials, such as polytetrafluoroethylene (PTFE), have excellent hydrophobic properties and can efficiently separate water vapor in compressed air to prevent it from entering the inside of pneumatic tools.
The filtering mechanism of small compressed air filters usually includes multiple stages such as pre-filtration, main filtration and fine filtration. Different filter materials and filtering technologies are used in each stage to ensure the best filtering effect. The pre-filtration stage mainly removes large particle impurities in the compressed air, such as dust, metal debris, etc.; the main filtration stage uses the adsorption and separation capabilities of special filter materials to remove liquid pollutants such as oil mist and water vapor; the fine filtration stage further refines the filtration to ensure that the compressed air entering the pneumatic tool reaches a very high purity.
In terms of filtration efficiency, small compressed air filters can usually meet the strict requirements of different industries for compressed air quality. For example, in the field of electronic assembly, the oil mist content in the compressed air is required to be less than 0.01mg/m³ and the water vapor content is required to be below the dew point -40℃; in the field of food processing and pharmaceutical manufacturing, the compressed air is required to be oil-free, water-free and dust-free to ensure the hygiene and safety of the product.
Small compressed air filters are widely used in many industries such as automobile manufacturing, electronic assembly, food processing, pharmaceutical manufacturing, aerospace, etc., especially in the field of precision manufacturing with extremely high requirements for compressed air quality. Their importance is self-evident. Through continuous filtration, these filters not only protect pneumatic tools and equipment, but also indirectly improve product quality, reduce maintenance costs, and provide strong guarantees for the production efficiency and economic benefits of enterprises.
In the field of automobile manufacturing, small compressed air filters ensure the dryness and purity of compressed air in processes such as welding and spraying, and improve process quality and production efficiency; in the field of electronic assembly, they effectively remove oil mist and water vapor in compressed air, prevent pollution and damage of electronic components, and improve product reliability and stability; in the fields of food processing and pharmaceutical manufacturing, they ensure the sterility and harmlessness of compressed air, and ensure the hygiene and safety of products.