2026-04-10Views：
What kind of oil is used in the air compressor? Does an oil-free air compressor not use lubricating oil?
Oil air compressor refers to the use of lubricating oil (synthetic oil or semi-synthetic oil) in the air compressor system to lubricate the machine and dissipate heat. This kind of air compressor, the compressed air will have a certain amount of lubricating oil, that is, the post-processing equipment is used for filtering, but it will still have a small amount of lubricating oil, so it is not suitable for some working conditions.
Oil-free air compressor, there are 2 kinds:
in the air compressor system, no lubricating oil is added, pure water is used for lubrication, and no lubricating oil is involved in the operation of the air compressor. Therefore, the compressed air has no lubricating oil, so it is called an oil-free air compressor.
In the air compressor system, lubricating oil is involved in the operation of the air compressor, but the lubricating oil is isolated from the compression zone by means of complete isolation. The lubricating oil is only responsible for the lubrication protection of the bearing and does not participate in the compression.
Note: The compressed air of an oil-free compressor is not 100 percent oil-free. Because the air contains trace amounts of oil, in some places, the oil content in the air is higher. Therefore, even if the oil-free air compressor is used, the compressed air still needs to be processed.
In addition: the price of oil-free air compressor is much higher than that of oil-free air compressor. Therefore, if you can choose a micro-oil permanent magnet frequency conversion screw air compressor, try to choose micro-oil.
Many enterprises in the purchase of permanent magnet variable frequency air compressor, often because of the permanent magnet variable frequency air compressor industry is not familiar with, do not know what kind of permanent magnet variable frequency air compressor brand. Generally speaking, in the domestic market of permanent magnet variable frequency air compressor, choosing Shanghai Granklin Group is a good choice.
Whether it is a low-pressure air compressor, a medium-pressure air compressor, or a high-pressure air compressor, Granklin water-lubricated oil-free screw air compressor will be your best choice. There are many types of oil-free air compressors, including small oil-free air compressors and large oil-free air compressors. Small oil-free air compressors are aimed at piston air compressors, while large ones are aimed at screw air compressors. Different types of air compressor prices also vary.
View detailsShanghai granklin group water lubrication air compressor manufacturer, as a member of the air compressor industry, we talk about other types of air compressors, such as dry oil-free air compressors. Dry oil-free air compressor its product advantages are:
medical air compressor choose water lubricated oil free air compressor medical air compression system it is the best "shanghai granklin oil free air compressor". The compressed air needed for survival cannot be interrupted for a moment. A continuous supply of mechanical ventilation is essential.
Permanent magnet frequency conversion air compressor has become a hot spot and bright spot in the industry due to its energy-saving and high-efficiency characteristics. The original energy-consuming air compressor on the market is gradually being replaced or replaced by permanent magnet frequency conversion air compressor, which can directly bring users 20%-40% cost savings. With the section
The air filter of the air compressor system is the first barrier of the screw air compressor. The quality of the air filter is very important. If the quality of the air filter is not good, just like people, the disease enters from the mouth. If the quality of the air filter is not good, customers will waste a lot of electricity bills, and it will directly affect the service life of oil, oil filter, oil, bearings, etc.
From the oil content point of view, the oil and no oil in the air compressor generally refers to the amount of oil in the exhaust port of the air compressor. There is also a completely oil-free air compressor, which is not lubricated by oil, but by water, so the final discharged gas does not contain oil.
In the case of permanent magnet variable frequency screw air compressor which is good to use (commonly used single-stage compression screw machine), the permanent magnet variable frequency air compressor is often unfamiliar with the equipment of permanent magnet variable frequency air compressor and does not know what brand of permanent magnet variable frequency compressor to choose.
Food, medicine, textile, chemical and other industries with high gas requirements, oil-free air compressors are gradually recognized by enterprises and widely used by more and more companies.
Is it difficult to choose an air compressor for industrial use? Among the large air compressors, the "water-lubricated air compressor" produced by Shanghai Granklin Group can achieve 250KW power on a single machine. Industrial use of oil free air compressor choose it:
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