2026-04-10Views：
In the fields of biology, medicine, electronics, food, medical, automobile, chemical industry, etc., the water, oil, dust and bacteria in the compressed air are required to reach a high quality level. However, the water, dust and bacteria in the compressed air can be solved by a series of post-processing equipment such as filters and dryers, while oil removal is relatively difficult, however, we have some misunderstandings about oil-free air compressors and the compressed air they produce.
The compressed air produced by the oil-free air compressor is oil-free, which is not certain.
Although no oil is used in the compression chamber, the oil will not contact with the compressed air, but the oil vapor contained in the atmosphere itself cannot be removed, which makes the compressed air still contain a small amount of oil impurities. After measurement, the oil content in the compressed air produced by the oil-free air compressor has a very close influence on the air quality, the environment of the air compressor room and the cleanliness in the compressor.
2. Oil-free air compressors do not use oil, which is not correct.
Although oil is not used to come into contact with the air in the process of compressing the air, oil is still used to cool the compressor and lubricate the operating parts so that the compressor operates normally and stably.
3. The compressed air produced by the oil-free air compressor is pollution-free and pure and clean. This is a wrong idea.
In fact, there are many pollutants in the atmosphere, including dust, water vapor, oil vapor, microorganisms and so on. The compressed air produced by the oil-free air compressor can only ensure that no oil is brought into the compressed air in the compression project, but the magazine in the air itself cannot be removed. This means that the compressed air produced by an oil-free compressor is not necessarily pollution-free, and the use of air treatment products can help reduce pollution to the required air quality level.
Oil-free air compressors do not require air treatment products, on the contrary, the higher the air quality, oil-free air compressors must also be equipped with post-processing systems.
It can be seen from the third point that the gas quality of the compressed air produced by the oil-free air compressor is largely subject to the environment, so users need to configure the corresponding post-processing equipment according to their own demand for compressed air quality to meet their own demand for compressed air quality.
5. The use of oil-free screw air compressor and low maintenance costs.
In fact, because the compression ratio is much smaller than the oil-lubricated compressor, the energy consumption of the oil-free machine is higher, and the gas production of the oil-free machine with the same power is more than 40% less than that of the energy-saving screw compressor. Although the compression chamber is not lubricated by oil, the grease and air filter in other parts still need regular maintenance. The core rotor is generally treated with special coating and has a service life. It has high requirements for water and is easy to be damaged. The maintenance of the main engine is a necessary option for no oil machine. The high cost of the pen can account for 50% of the equipment cost.
We believe that for most users, in fact, it is not necessary to truly level 0 oil-free compressed air, but more to solve the problem caused by oil impurities for mid-range equipment: refrigerated dryers, heat-free regenerative dryers, micro-heat regenerative dryers, etc. It is a choice to prevent the efficiency of post-processing equipment from declining or even losing its water removal function. For users who really need 0-level oil-free compressed air, it is difficult to obtain oil-free compressed air continuously and stably by selecting oil-free air compressor alone. It is still necessary to carry out oil removal filtration with corresponding oil removal post-treatment equipment to achieve the required compressed air quality.
Air compressor pumping slow, is a lot of air compressor old users will encounter the situation, why is this. How long is the durability period of wearing parts?
There are so many domestic air compressor manufacturers, and the number is large. Before purchasing, it is best to look at the factory scale, production capacity, and various certifications and user cases of the product, and evaluate whether the air compressor manufacturer can meet its own needs.
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The application industries of water-lubricated air compressors produced by Shanghai Granklin Group: university laboratories, chromatographic analysis, medical pharmacy, dentistry, food processing, construction engineering, chemical industry, machinery, environmental protection, meteorology, hydropower, spraying, sandblasting, PET Bottle blowing, leak detection, metallurgy, water treatment, printing, shipping, textile, petrochemical, electronics, instrumentation, tobacco, nitrogen production.
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1. operators must be familiar with the structure, performance, working principle, operating procedures and precautions of the air compressor. 2. operators must undergo technical training and safety training, and after passing the examination, they shall take up their posts with certificates and shall not operate without certificates.
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