The role of the air compressor in specific applications in various industries? Air compressors are widely used in electric power, textile, steel, food, pharmaceutical, breathing, diving, fire, electronics, machinery, equipment, automotive, packaging, printing, toys, chemicals , energy, glass, green, metal, PET blow molding, shipbuilding, military and other aspects. 1, compressed air as a power: total drive various pneumatic machinery, pneumatic tools discharge pressure of 7 to 8 kg / cm air compressor manufacturers, instrumentation and automation equipment for controlling pressure of about 6 kg / cm Compressor manufacturers offer automatic vehicle, doors open and close, a pressure of 2 to 4 kg / cm, the pharmaceutical industry, the wine industry stirring, pressure of 4 kg / cm, air jet loom weft blowing pressure of 1 ~ 2 kg / cm, medium and large diesel engine starting pressure of 25 to 60 kg / cm, well fracturing pressure of 150 kg / cm, "second law" oil pressure of about 50 kg / cm high pressure blasting mining pressure of about 800 kg / cm, the pressure in the air defense industry for its power. The ups and downs submarine, torpedo firing and driving and wreck salvage, etc., all with different pressure compressed air for power. 2, the compressed gas used for refrigeration and gas separation: gas compressed, cooled, liquefied and expanded for artificial cooling, such as ammonia or freon compressor. More compression pressure of 8 to 12 kg / cm, this type of compressor is usually a "refrigerator" or "ice." Also in the case of gases liquefied gas mixture, it can be in the separation apparatus, the components are separated out, get qualified lip reading to a variety of gases. As after air separation can be pure oxygen, nitrogen, and pure xenon, krypton, argon, helium and other rare gases. 3, the compressed gas used in the synthesis and polymerization: In the chemical industry, the gas is compressed to a large high-pressure compressor manufacturers, often advantageous synthesis and polymerization. Such as ammonia, nitrogen and hydrogen, hydrogen and carbon dioxide synthesis of methanol, carbon dioxide and ammonia synthesis urea. The chemical industry, such as high pressure polyethylene pressure of 1500 to 3200 kg / cm. How to screw compressor oil change? Screw compressor maintenance for oil is indispensable, compressor users love air compressor, air compressor should be cleaned frequently, maintenance, and more attention should always Pneumatic ? oil level, and that the screw compressor oil change, change what steps follow it 1 start running to the normal temperature for one hour; 2, shut down; 3, drain the fuel tank, cooler and filter all of the oil; 4, the minimum amount of oil to add new oil to replace needed to operate (eg: 1/2 volume); 5, up and running to its normal operating temperature for one hour. In that hour, every 15 minutes to open and close the exhaust valve so that the machine cycle at the highest pressure and the lowest pressure valve setting. You can increase the bull's-eye bubble observation windows. You'll also see the viewing window becomes clear from the beginning of milky; 6, shut down; 7, drain the fuel tank, cooler and filter all of the oil; 8, add new oil to 1/2 volume replacement; 9 Repeat step 5; 10, off; 11, drain the oil screw air compressor, screw compressor rear cooler comprises a cooler oil-free compressor manufacturers, tank and filters. If necessary, remove the pipe in order to remove oil at low. Clean the filter; replace splitters and all non-permanent type of oil filter. Check the import of contaminated oil filter cover, if the case needs to be replaced; 12, added need to replace the recommended minimum fuel oil to run the required (eg: 1/2 volume); 13, boot and run to the normal temperature for 15 minutes; 14, shut off the oil side by side inside the machine. Open air filter and filter, but do not replace; 15, do you recommend machine oil added to the normal oil level; 16, reboot and pay attention to the oil level. Observed when the machine operations within the oil window of about 1/2; 17, within two minutes after turning off the foam can be dispersed to the oil level and there is no oil flowing from discharge valve. Compressor manufacturers offer Yulin compressor manufacturers, Qin Wei Qin Wei Xianyang provided by Air Compressor Co., Ltd.. Xianyang Qin Wei Compressor Co. (www.xykyj.cn/) strong, credible, Xianyang in Shaanxi compression, separation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Qinwei Air into the brilliant and you work for a better future!