2026-04-09Views：
Air compressors with oil and without oil are not absolutely good or bad. Their use occasions are different from those suitable for working conditions. If they are used for purging, mechanical processing, manufacturing and power use, it is OK to choose air compressors with oil and micro oil. However, oil-free air compressors must be used in some occasions, such as food, medicine, precision instruments and other industries. Oil-free air compressors are cleaner and more environmentally friendly than oil-free air compressors to some extent, but oil-free air compressors are more expensive than oil-free air compressors and have higher maintenance costs.
In addition to the price, oil-free air compressor and oil air compressor has the following differences:
1. The oil content is different. Generally, the oil content of the oil machine is larger, and the oil content of the oil machine is 0.01ppm, so this oil content is used to distinguish the air compressor with oil and without oil. There is also a completely oil-free air compressor, which is lubricated with resin materials, so the final discharge of gas does not contain oil, called a completely oil-free air compressor.
2. The structure is different. Whether it is an oil-free piston machine or an oil-free screw machine, a large amount of high temperature will be generated during the operation. The participation of oil in the air compressor will take away the high temperature generated during the compression process of the air compressor, thereby Cooling the machinery. The oil-free air compressor uses water as a cooling material to replace the oil to solve the high temperature in the compression process of the air compressor, thus achieving the purpose of oil-free compression.
In compressed air, when the oil content concentration reaches a certain level, it may indicate the presence of liquid oil. In particular, if the oil content concentration in the compressed air exceeds a certain threshold, this is generally regarded as an indicator of the presence of liquid oil. However, the specific concentration threshold can be
The performance test standards for oil-free air compressors involve many aspects. These standards are designed to ensure the performance, quality, safety and reliability of air compressors. The following is a detailed analysis of the performance test standards for oil-free lubricating air compressors: 1. to the international standard ISO 8573-1:
There are significant differences between the suction dryer (adsorption dryer) and the cold dryer (freeze dryer) in many aspects, which are mainly reflected in the working principle, drying effect, energy consumption, maintenance cost and applicable scenarios. The following is a detailed comparison: 1. working principle
How about permanent magnet variable frequency air compressor -- take the water lubricated air compressor of Shanghai Greenland Group as an example to 1. the overview of permanent magnet variable frequency technology. Permanent magnet variable frequency technology is an important innovation in modern motor technology. Different from traditional
The service life of the screw machine varies due to many factors. Generally speaking, its service life is between 5 and 20 years. The specific service life depends on the following key factors: Equipment quality: high-quality screw machines usually have a longer service life. This is because
There are indeed types of air compressors that do not require oil, which are mainly oil-free air compressors. The following is a detailed explanation of the oil-free air compressor: Working principle: The oil-free air compressor uses compressed air to directly complete the gas and liquid state in the cylinder
Confirm whether the air-cooled screw unit is frequency conversion, you can use the following methods: check the model identification: the model of the frequency conversion air-cooled screw unit usually contains the words "frequency conversion" or "BP. Observe external machine: frequency conversion air
The replacement cycle of the air compressor oil filter will be affected by many factors, including the quality of the oil filter and the use environment of the air compressor. Generally speaking, the service life of the better quality brand oil filter can reach 3000 hours, while the service life of the general quality oil filter may only be
In the use of air compressor in humid environment, comprehensive measures should be taken to deal with condensate, corrosion and electrical hazards. The following is the specific solution: 1. core impact analysis Condensate accumulation After humid air is compressed, the density of water vapor increases, and condensate is easy to separate out during cooling.
Air compressor exhaust oil content standards are usually determined according to international standards and industry norms, these standards are designed to ensure the purity of compressed air and meet the needs of different application scenarios. The following is a detailed summary of the air compressor exhaust oil content standards: 1. international standards
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