2026-04-10Views：
Good or bad depends on the occasion of use and the actual working conditions. In some cases, such as food, medicine, precision instruments and other industries, it is necessary to use a full oil-free air compressor. But the whole oil-free air compressor is much more expensive and the maintenance cost is higher.
If it is used for purging, machining, manufacturing and power use, it is possible to choose an air compressor with oil and micro oil. Such as spraying, steel, electricity, hardware, mining, ceramics, textiles, machinery, etc. are widely used.
The difference between oil and no oil
oil and no oil in the air compressor generally refers to the amount of oil content in the gas discharged from the exhaust port of the air compressor. Generally, the oil content of the oil machine is relatively large, and the oil content of the oil-free oil machine is 0.01ppm. Therefore, the oil content is used to distinguish the oil and no oil in the air compressor.
Now large displacement, all oil-free air compressor models have begun to use centrifugal air compressors.
One is to use water instead of oil, and the other is to coat the rotor with a self-lubricating coating (not oil lubrication, but resin lubrication). Because the bearings running at high speed at both ends of the rotor need oil lubrication, it is necessary to seal the lubrication space of the rotor bearing and the compression space of the rotor. It is precisely because of this high-speed seal that the oil-free air compressor needs high processing accuracy. The cost is also very high.
Oil-free air compressor once the failure of the host head, because too precise, the host head can only be repaired back to the manufacturer, greatly increasing the irreparability, even if it can be repaired, also need to pay a huge amount of money and a lot of maintenance time.
At present, the quality and stability of this kind of air compressor is not very satisfactory, and the domestic oil-free machine is generally lubricated. Therefore, it is not a super large enterprise, or has special requirements, must be completely oil-free, it is best not to blindly purchase oil-free air compressor. Looking for good brand, professional technical personnel, combined with their own industry and actual use, understand the advantages and disadvantages, in the choice of judgment.
Nanning screw air compressor accessories, Nanning screw air compressor where to buy some manufacturers still marked on the parts. Generator and other important components. The oil filter, oil separation device, etc. are also accompanied by an operation manual. Certificates and introspections. Pointing user is
It is very difficult to make a brand, from the brand name to the registered brand, as well as the design of the product LOGO. The most important thing is whether the products to be produced by the enterprise have enough technology accumulation to complete the quantitative change and qualitative change of the enterprise brand. Shanghai granklin group in continuous research and development of products, improve products at the same time there are various patent certificates, such as all kinds of "water lubricated oil-free air compressor" certification, in the air compressor brand we have always been serious, dare not have the slightest slack.
View detailsThe structure is reasonable and has ideal force balance: the screw of the oil-free air compressor is equipped with a star wheel symmetrical structure on both sides, so that the oil-free air compressor not only has no unbalanced inertial force, but also uses the axial force on the screw. The radial force also cancels each other out, making it ideal
The reputation of "oil-free air compressor" depends on the users who have used it. When a brand reaches a certain user base, most people say that it is easy to use and the gas supply is stable, then this "oil-free air compressor manufacturer" must be a "oil-free air compressor enterprise" with good reputation and excellent product quality ".
What is the difference between a fixed screw air compressor and a variable frequency screw air compressor? Most of the variable frequency air compressors are also fixed, and the fixed screw air compressors include variable frequency air compressors and water lubricated air compressors produced by Grantklin Group are also fixed.
View detailsAn air compressor is a device used to compress gas. Air compressors are similar in construction to water pumps. Most of the air compressors that are often seen in life are reciprocating piston type. In recent years, water lubricated oil-free screw air compressors are also on the rise year by year. As an important form of energy generation, air compressor is widely used in
The market of permanent magnet oil-free screw air compressor is increasing year by year, which is consistent with the development route of national industrial upgrading. In industrial production, the oil-free gas provided by permanent magnet oil-free screw air compressor is essential. Permanent magnet oil-free screw air compressor is the best energy-saving product among all air compressors at present. Let's take a look at the advantages of permanent magnet air compressor.
Granklin Group 2 cubic water lubricated oil-free screw air compressor, oil-free air compressor is divided according to whether the compressed air contains oil, corresponding to oil air compressor or micro-oil air compressor, granklin air compressor is 100% oil-free with water lubrication.
To purchase air compressor products, first you have to learn to calculate an account, service life, after-sales air compressor, whether there is a manufacturer to provide technical support. It takes a long time to purchase an air compressor. If you spend hundreds of thousands of dollars to purchase the air compressor, it will take only 2 years to have various problems.
View detailsThe water-lubricated oil-free air compressor produced by Shanghai Granklin Group adopts single-screw technology to replace oil with water to achieve lubrication, cooling, sealing, noise reduction and other effects, providing high-quality oil-free air, no pollution, and the discharged water No special treatment is required to meet environmental protection requirements.
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