2026-04-10Views：
Prospective Industry Research Institute "2014-2018 China air compressor industry production and marketing demand forecast and transformation and upgrading analysis report" data show that the western developed countries screw air compressor market share of about 80%. The Chinese market is expected to grow at an average annual rate of 15%.
For medicine, food, semiconductor, chemical industry, fermentation and other industries, oil-free and clean compressed air must be the first choice. Oil-free oil-free screw air compressor, water-lubricated oil-free screw air compressor, oil-free scroll air compressor and oil-free centrifugal air compressor are common oil-free.
Today, compare two types of oil-free screw air compressors-dry oil-free air compressors and water lubricated air compressors.
First:
the single screw water lubricated air compressor uses pure water for lubrication and cooling, and the internal parts combination of the body is made of special material medical grade stainless steel, which will never corrode.
Dry oil-free air compressor still depends on lubricating oil to cool, the body will produce oil smell.
Second:
the pure water of the water-lubricated air compressor system has been circulating in the system. The system will automatically change the water at a set time to ensure the quality of the water, and the operating temperature of the body is not higher than 50 degrees, so the water is not affected inside the body. And scale problems.
The operating temperature of the dry-type oil-free machine is very high, which exceeds 200 degrees, which directly affects the life of the cooling oil and the bearing.
Third:
the single-screw water-lubricated oil-free machine adopts imported special bearings, so there is no problem with direct water lubrication, high efficiency, low head noise, and few bearing combinations.
Twin-screw air compressors generally use FAG or SKF bearings, which are low-temperature bearings with short service life and high noise, and there are many combinations of double head bearings.
Fourth:
single screw water lubricated air compressor is directly sprayed with pure water in the body. Due to the high specific calorific value of water, the compression chamber is almost in the ideal state of isothermal compression and the compression process with the lowest energy consumption.
Dry-type oil-free cooling oil is about 100 degrees, the temperature of the compression chamber exceeds 200 degrees, and the temperature difference is relatively large, so the energy consumption can also be higher than that of a single screw water-lubricated air compressor.
Fifth:
single-screw water-lubricated oil-free machine, the body and the motor are directly connected, the speed is low below 3000 rpm, there is no speed-increasing gear, the bearing life is long, and the maintenance cost is low.
The dry-type oil-free machine body needs to add a speed-increasing gear to the middle of the motor, because the speed is higher than 18000 revolutions, the speed-increasing gear needs to be increased, the bearing life is short, and the maintenance cost is high.
Sixth:
the water-lubricated air compressor uses water to cool the lubrication seal, the air quality is guaranteed, and the speed is about 3000 rpm. The temperature is about 55 degrees, and the maintenance cost is low.
The dry twin-screw air compressor uses oil to cool the bearings. The air quality cannot be completely clean and environmentally friendly. The two-stage compression speed reaches about 18000 rpm, which consumes labor and the temperature reaches about 200 degrees. It is unsafe and has high maintenance costs.
Water-lubricated single-screw air compressor is an oil-free air compressor series. Water is used as a lubricant to fundamentally solve the problem of environmental pollution caused by lubricating oil. Compared with other oil-free air compressors, it has the advantages of simple and compact structure: low speed, low vibration and noise: low exhaust temperature: high thermal efficiency: stable and reliable performance, low specific power, etc.
Domestic oil-free air compressor manufacturers, choose "Shanghai Granklin Group", a group company specializing in the production of "water-lubricated air compressors. Years of "oil-free air compressor" production, has accumulated rich experience and profound technology, in the country has a wealth of cases. There are pharmaceutical factory, food factory, electronics factory, process gas factory (such as argon), laboratory preparation, marine air compressor, bottle blowing, beverage, wine, hospital and so on.
Speaking of how much is the water-lubricated oil-free air compressor? This problem, granklin's Shen is a professional counterpart. The main product of our Granklin Group is the water-lubricated oil-free air compressor. Under this topic, Granklin Group, as a senior enterprise in the industry, still has a little experience.
[Water-lubricated air compressor] As the main product of Shanghai Granklin Group, it has achieved "100% oil-free compressed gas" in the field of oil-free compressed air ". What are the advantages and disadvantages of screw air compressor compared to other types?
How much is the price of Guangzhou air compressor and how much is the price of Guangzhou air compressor? A screw air compressor for decoration is used to determine the skills. Experienced teachers will determine the silent air compressor. This is also an effort to make money. The music of ordinary screw air compressor is very loud when working.
Oil-free air compressor theoretically no clearance volume, single capacity, ideal isothermal compression, due to the good thermal conductivity of water, lubricating water into the compression chamber, the temperature will drop to 45 ℃, close to the suction temperature. Oil-free: water to replace oil, lubrication, cooling, sealing, noise reduction of the four effects, to provide 100 oil-free air, no pollution, the discharge of water without special treatment, in line with environmental requirements.
View detailsThe water lubricated air compressor produced by granklin group does not contain oil. it only needs to replace the air filter element and water filter element regularly according to the manufacturer's requirements and maintain the head of the water lubricated air compressor. 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.
View details"Air compressor" is mainly used to pressurize gas and some transportation and other operations of the machine. The general structure of the "air compressor" is similar to the water pump we are familiar with. It is widely used in many production and manufacturing industries. The "air compressor" also has many unique functions and uses.
granklin air compressor is focused on water lubrication screw air compressor research and development and manufacturing of the brand. We are committed to providing clean and efficient compressed air solutions for various industries through innovative technologies to meet the needs of demanding air quality applications.
What brand of air compressor is good? There are countless air compressor brands in the national market, and oil-free air compressor is currently in such a wide range of air compressor manufacturers. Can be 100% oil-free air compressor manufacturers, only a few leading brands. The water-lubricated air compressor produced by Shanghai Granklin Group is one of them.
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