2026-04-15Views：
In laser applications, in order to ensure cutting quality and equipment safety, the oil content of the air compressor needs to be controlled at a very low level, which usually requires an oil content of less than 0.001ppm, and some high-precision scenes even require no oil. The following is a detailed description of this requirement:
in the laser cutting process, compressed air is used as an auxiliary gas to directly participate in the key links such as cutting, purging and protecting the focus lens. If the compressed air contains oil mist, high pressure jet to the laser cutting head protection mirror surface, will seriously affect the transmission of the laser beam, resulting in focus dispersion, resulting in rough cutting edge, product cut through quality problems, and may even burn the laser head. Therefore, the laser air compressor for oil content requirements are extremely strict.
In order to meet this demand, the special air compressor for laser cutting usually adopts a high-efficiency oil and gas separation system, which ensures ultra-low water and oil content through the full import of three filter materials and the enlarged oil and gas separation design. Some high-end models even use oil-free screw air compressors to eliminate oil pollution from the source and provide almost oil-free air to protect the laser lens and cutting quality.
In practical applications, the lens accuracy of the laser cutting machine can reach 0.01mm, which is extremely sensitive to impurities in compressed air. Therefore, in addition to the oil content, but also need to pay attention to the compressed air particle filtration accuracy and pressure dew point and other indicators. Generally, the particle filtration accuracy is required to reach 0.01 μm, and the pressure dew point is as low as 2-5°C to ensure that the impurities in the compressed air are almost zero to meet the high-precision requirements of laser cutting.
Long-term idleness will definitely break down, but the water-lubricated air compressor has less big trouble of oil deterioration, and the overall damage degree is lighter than that of oil-lubricated machines, and the maintenance is more worry-free.
Oil-free and water-lubricated single screw air compressor is a high-end product of air compressor. It provides completely oil-free compressed air and is suitable for industries or fields with high requirements for compressed air quality, such as environmental protection, electronics, chemistry, new energy, textile, papermaking, medical and health, food, aerospace, military industry, etc.
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