2026-04-09Views：
The main differences between micro-oil and oil-free air compressors are reflected in the following aspects:
lubrication method:
micro-oil air compressors use a very small amount of lubricating oil during the compression process to reduce friction and wear, but this means that the compressed air output may contain trace amounts of oil.
Oil-free air compressors (such as the water-lubricated oil-free frequency conversion screw air compressor of Shanghai Granklin Group) do not use lubricating oil for compression at all, but use other lubrication methods, such as water lubrication, to ensure that the output compressed air is completely oil-free.
Compressed air quality:
the compressed air output by the micro-oil air compressor may contain trace oil mist, which is acceptable for some applications that do not require particularly high gas quality.
The compressed air output by the oil-free air compressor is completely free of oil and is suitable for industries with extremely high gas quality requirements, such as food, medicine, electronics, etc.
Maintenance costs:
the micro-oil air compressor needs to replace the lubricating oil regularly, and check the oil level and oil quality, and the maintenance cost is relatively high.
Oil-free air compressors do not need to handle lubricating oil, reducing maintenance costs and workload related to oil.
Environmental impact:
the micro-oil air compressor may have a certain impact on the environment due to improper handling of lubricating oil.
Oil-free air compressors are environmentally friendly and do not produce oily wastewater or waste gas.
Initial investment and energy efficiency:
micro-oil air compressors are usually more affordable and may have a higher energy efficiency ratio in some applications.
Oil-free air compressor due to the use of more advanced technology and materials, the initial investment may be higher, but in the long run, its operating costs and maintenance costs may be lower.
Question: How is the oil-free technology realized for the water-lubricated oil-free variable frequency screw air compressor of Shanghai Granklin Group?
Answer: The water-lubricated oil-free frequency conversion screw air compressor of Shanghai Granklin Group adopts advanced water lubrication technology to achieve oil-free compression. In conventional air compressors, lubricating oil is used to reduce friction and to cool the compressor components. However, in the water-lubricated oil-free air compressor, water is used as a lubricant and injected into the key parts of the compressor through a special water circuit system to form a water film to reduce friction and wear.
This water lubrication technology not only ensures no oil pollution during the compression process, but also provides an effective cooling effect and prolongs the service life of the compressor. In addition, Shanghai Granklin Group also adopts frequency conversion control technology to adjust the output of the compressor according to actual needs, further improving energy efficiency and stability.
In summary, through the use of water lubrication and frequency conversion technology, Shanghai Granklin Group's water lubrication oil-free frequency conversion screw air compressor to achieve efficient, reliable and completely oil-free compressed air output.
Compressed air ppm is a unit used to describe the content of trace substances (such as oil, moisture, etc.) in compressed air, specifically referring to the concentration of one part per million. In the field of compressed air, ppm is often used to express the oil content in compressed gas, that is, parts per million
The energy consumption of the air compressor is a range of values, which are affected by many factors, including the type of air compressor, specifications, working pressure, flow and operating conditions. In general, the power of small air compressors may be low, usually between a few kilowatts and a dozen kilowatts.
Air compressor exhaust oil content standards may vary due to different air compressor types, uses and industry standards. Generally speaking, for ordinary air compressors, the oil content in the exhaust should not exceed a certain limit to ensure the quality and air quality of the compressed air.
In today's growing industrial field, screw air compressor with its efficient and stable characteristics has become the first choice of many enterprises. Among the many brands, Shanghai Granklin Group has become the most popular in the market for its excellent product quality and affordable prices.
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