2026-04-09Views：
There are some differences in the design and working principle between screw air compressor and oil-free air compressor, which are mainly reflected in the lubrication mode, compressed air quality and application field. The following will be combined with the characteristics of Shanghai Granklin Group water lubrication oil-free frequency conversion screw air compressor for a detailed description:
lubrication method:
screw air compressors usually use oil lubrication, that is, lubricating oil is used during the compression process to reduce friction and cool the compressor. This type of lubrication may result in traces of oil in the compressed air.
Oil-free air compressors, such as the water-lubricated oil-free frequency conversion screw air compressors of Shanghai Grankering Group, use water as a lubricant, completely avoiding the use of oil. The water lubrication system reduces friction and cools the compressor by injecting an appropriate amount of water into the compression chamber to form a water film, thereby ensuring that the compressed air is pure and oil-free.
Compressed air quality:
since the screw air compressor uses oil lubrication, the compressed air may contain trace amounts of oil, which is acceptable for some applications that do not require high purity of compressed air.
The compressed air produced by the oil-free air compressor is completely free of oil, which is very suitable for applications that require extremely high purity of compressed air, such as food, pharmaceutical, semiconductor and other industries.
Application areas:
because of its high efficiency and stability, screw air compressor is widely used in various industrial fields, such as machinery manufacturing, chemical industry, textile and so on.
Oil-free air compressors are more suitable for industries with special requirements for the purity of compressed air. Take the water-lubricated oil-free variable frequency screw air compressor of Shanghai Glaklin Group as an example, its power range is between 7.5-250KW, which can meet different scales and needs of semiconductor manufacturing, food processing and other applications.
Question: What are the advantages of the water-lubricated oil-free variable frequency screw air compressor of Shanghai Granklin Group in terms of energy saving?
Answer: The water-lubricated oil-free frequency conversion screw air compressor of Shanghai Granklin Group adopts advanced frequency conversion technology, which can adjust the output of the compressor in real time according to actual needs. This intelligent adjustment function allows the air compressor to maintain high efficiency even when running at part load, thereby greatly reducing energy consumption. In addition, the water lubrication system also helps reduce the energy required for friction and cooling, further improving the overall energy efficiency of the air compressor. Therefore, this kind of air compressor has a significant advantage in energy saving, which helps to reduce the operating cost of users.
The bottle blowing process in the food industry requires strict pressure stability and cleanliness of compressed air. During the bottle blowing process, the compressed air needs to continuously provide uniform pressure to ensure that the wall thickness of the bottle body is consistent and the molding is free of defects, while avoiding the mixing of oil or other impurities, which will affect the food packaging.
Minor maintenance only needs to replace the air compressor oil and oil filter, which is usually replaced after 500 hours of operation of the new machine. Major maintenance is carried out about 3000 hours of operation of the machine. Air compressor is a more complex equipment, so its maintenance is more strict.
Mine permanent magnet frequency conversion integrated air compressor: Mine permanent magnet frequency conversion integrated air compressor is a device that uses a permanent magnet synchronous motor to drive the compressor rotor, which combines the advantages of permanent magnet synchronous motor and frequency conversion technology. This air compressor can be quickly adjusted by frequency conversion technology
The oil-free air compressor cannot be refueled. The following are some explanations about the oil-free air compressor: Working principle: The oil-free air compressor does not need to use lubricating oil to lubricate the mechanical parts during operation. This design ensures compression of the output
In the food packaging industry, it is very important to choose a suitable air compressor, because the quality of compressed air directly affects the hygiene and safety of food. As a professional air compressor manufacturer, Shanghai Granklin Group provides a variety of air compressor products.
The types of enterprises that need air compressors and the application scenarios of water-lubricated air compressors 1. the core types of enterprises that need air compressors manufacturing automobile manufacturing: used to drive pneumatic tools (such as wrenches and spray guns), automation equipment and tire inflation. Mechanical
The method of adjusting the minimum pressure value of the oil-free air compressor is mainly divided into manual adjustment and automatic adjustment. 1. manual adjustment to find the pressure switch of the oil-free air compressor, which is usually located on the control panel of the machine. Manual Open Empty
Granklin water-lubricated oil-free air compressor is very suitable for oxygen supply to provide clean compressed air for oxygen production and pressurization. The traditional piston air compressor oil content is too large, the new water-lubricated air compressor to provide compressed gas oil-free, water-free, the help for the medical system is not small.
The compressed air used in the production of puffed food must be clean air that does not contain oil, has very low moisture, has no dust and bacteria, and has no peculiar smell. Water lubricated air compressor is becoming a more and more popular gas supply choice for food production enterprises because it solves the problem of oil pollution from the source.
Fermentation sterile air needs to meet the following standards: Air flow: A certain flow of compressed air needs to be continuously provided to ensure the continuous progress of the fermentation process. The specific flow requirements are determined according to the fermentation scale and process requirements. Pressure: The pressure of air
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