2026-04-10Views：
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 and water lubrication.
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 is relatively high.
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.
The water lubricated air compressor produced by Shanghai granklin group is widely used in metallurgy, machinery manufacturing, mining, electric power, textile, petrochemical, textile and other industries. Our cases cover all provinces and cities in China. Oil-free screw air compressor
View detailsBecause of its particularity, the food industry has higher requirements for air compressors. Generally, such industries will choose oil-free screw air compressors as air sources. Oil-free air compressor in the food industry is mainly used for mixing liquid, bread fermentation tank natural gas, cleaning equipment with nozzles
If the maintenance of the air compressor is not timely, it will have a great impact on the air compressor. The screw air compressor will have a first guarantee for 500 hours of operation and a maintenance for 2000 hours after operation. Screw air compressor oil is good or bad on the oil injection screw
Water-lubricated air compressor is the main product of Shanghai granklin group. the head of water-lubricated air compressor can be used in permanent magnet variable frequency air compressor, screw air compressor, water-lubricated air compressor and oil-free air compressor. the products are the best in the domestic industry in the field of energy-saving and oil-free air. The energy efficiency grade of air compressor is divided into three levels, the first level of energy efficiency reaches the advanced level, energy saving, the second level of energy efficiency is more energy-saving, and the third level of energy efficiency is high energy consumption, which is the market access index.
View detailsThe possible causes and inspection methods that lead to the vibration of the screw air compressor, it is necessary to pay attention to this vibration phenomenon when using the screw air compressor, and find and solve the problem in time. Let the screw air compressor supply compressed air for you better and more stable.
The equipment that integrates components such as freeze dryer, precision filter, gas tank and so on is called integrated air compressor, and it can also be called combined air compressor, which is convenient to install, simple to apply and convenient to move.
When you need "oil-free air compressor" to provide "oil-free air" for the production of enterprises, will fall into a difficult problem of choice, so many types and brands of "oil-free air compressor", pick the eye. We can look at the difference between "power frequency air compressor" and "frequency conversion air compressor" to decide how to choose and purchase. If you need "water lubricated air compressor" or "oil free air compressor" may wish to contact us "Shanghai granklin group".
According to market conditions, most manufacturing industries choose air compressors. For example, oil-free air compressors are generally used in the food industry and the pharmaceutical industry. The laser industry uses more medium pressure. Textile and chemical fiber industry uses more low pressure. For high-pressure testing of products, bottle blowing
What are the safety measures in the work of the air compressor?(1) When the compressed air is cooled, the oil-water mixture condensed in the cooler, air storage barrel and oil separator must be blown off in time, at least once per hour. (2) When the air compressor is working, if the cooling water supply is not timely, it must be parked immediately to be cooled.
The water lubricated oil-free air compressor uses pure water lubrication that meets the drinking water standard, and the entire compression process is completely free of oil. Thus, 100% oil-free clean compressed air is provided. Product features: 1. High efficiency, high reliability, 100% pure oil-free compressed air, ideal isothermal compression, displacement: 2.3-21.3m ³/min.
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