With the development of society, the advancement of technology, and the improvement of living standards, the devices we use around us are also quietly changing. From the popularity of micro-oil air compressors, to now more and more related to people's livelihood or important industries, micro-oil air compressors are gradually replaced, which is also the trend of the times, and then choose oil-free air compressors, JOY Machinery ( The editor of Shanghai) Co., Ltd. will introduce to you as follows:

Air compressors are widely used and there are so many models. In general industries, we can choose oil-injected air compressors, which is what we often call micro-oil air compressors or oil lubricated air compressors. So how to choose air compressors for laboratory, food processing, biopharmaceutical, medical and other special industries? With or without oil?

Generally speaking, companies that have high requirements for compressed air quality need oil-free screw air compressors, which usually require the machines to have the following characteristics:

Ⅰ. Stable workability

1.Stable working air pressure: For example, the air pressure of the air compressor used in the laboratory is mostly 0-8BAR (about 0-8 kgf), which meets the air pressure requirements of general experimental equipment.

2. Stable gas production: stable and continuous exhaust volume (usually expressed in m3/min, L/MIN): refers to the air flow rate per minute under the rated working pressure, and the air compressor must ensure stable and continuous air during the air supply process The flow rate is high, so the stability of the air compressor is required to be high.

   Ⅱ. high quality compressed air

    During the entire operation of the oil-free air compressor, there is no air compressor oil mixed in the compressed air, and the compression chamber of the main engine only uses circulating pure water to seal the compressed air to prevent backflow, so the quality of the compressed air discharged is very high. Therefore, the selection of oil-free air compressors is a guarantee that high-quality compressed air is required.

   Ⅲ. Silent air compressor

   To ensure that laboratory staff have a relatively quiet working environment, it is recommended to choose a water-lubricated oil-free air compressor with good noise.

   Ⅳ. Work safety and easy operation

The air compressor must meet the requirements in terms of safety, and must pass relevant national certifications, such as the I pressure vessel certificate and the international general CE certification.

JOY machinery oil-free screw air compressor features:

1. Structure without lubricating oil: All systems of the oil-free screw air compressor do not have the participation of lubricating oil. The lubricant used is water, which provides breathable compressed air.

2. Ideal isothermal compression: Since the cooling performance of water is much higher than that of air compressor oil, the operating temperature of the oil-free screw air compressor is only 40°C, which is close to the suction temperature, achieving high-efficiency ideal isothermal compression.

3. Real environmental protection and high efficiency: no lubricating oil, that is, no oil pollution; multi-layer filtration and purification of high-precision water filter to ensure the pure water quality of lubricating water. The pure water used by the oil-free air compressor has three functions of sealing, cooling and lubrication, and the gas output per horsepower is 20% higher than that of ordinary dry compressors.

4. "Class 0 oil-free certification".

5. The single-stage compression pressure can reach 13 kg, and the two-stage compression can reach more than 40 kg; it can solve the embarrassing situation of the dry oil-free screw compressor with a pressure of 10 kg.

6. Lower maintenance cost: daily maintenance consumables are air filter element and water filter element; lubricating water is automatic water replenishment, no need to manually add water, and no need to stop during the process of automatic water replacement.

7. The existing water-lubricated oil-free screw compressors and systems generally use food medical-grade materials such as SUS304, which are clean and hygienic, and are more in line with the hygiene standards of the pharmaceutical and food industry.

8. The use of water to lubricate the compressed air contains fewer impurities and is cleaner.

9. Due to its natural explosion-proof characteristics such as near-isothermal compression, corrosion resistance, water spray lubrication in the compression chamber of the main engine, and no sparks in metal and non-metal meshing, it will be widely used in the field of special process gas compressors. JOY oil-free compressors are widely used in food, biopharmaceutical, laboratory research and other fields that have high quality requirements for gas due to their good performance.