The common specifications of the air compressor: 
 3HP, 4HP, 5HP, 7.5HP, etc.. 

 Air compressor (English: The air compressor) is the main gas supply, it is the original motive (usually motor) mechanical energy is converted into a gas pressure device, the pressure of the compressed air generating device. 

 Purposes: 
 a traditional air power: pneumatic tools, rock drills, picks, pneumatic wrench, pneumatic blasting 
 b, instrumentation control and automation equipment, such as machining centers, tool replacement 
 c, vehicle braking, doors and windows open and close 
 d, air jet loom using compressed air blowing weft to replace the shuttle 

 Oil-free air compressors 
 e, food, pharmaceutical industry, the use of compressed air stirred slurry 
 f, the starting of large marine diesel engines 
 g, wind tunnel experiments, ventilation of the underground passage, metal smelting 
 h, fracturing 
 i, the high-pressure air blasting coal mining 
 weapons systems, missile launchers, torpedo 
 k, submarines, ups and downs, salvage, offshore oil exploration, hovercraft 
 l tire inflation 
 m painting, 
 n, Blow Molding Machine 
 o, the air separation industry 


 Regular maintenance and repair of major components 
 To make the air compressor to normal and reliable operation to ensure that the service life of the unit are required to develop a detailed maintenance plan, the implementation of fixed-man operation, regular maintenance, regular inspection and maintenance of air compressor to keep clean, no oil, no dirt. 
 The main components of maintenance of the following table: 
 Note: 
 Cleaning cycle 
 A. Maintenance and replacement of various components according to the above table must be determined: the pressure within the air compressor systems have been released, has been separated from other source of pressure, the switch on the main circuit has been disconnected, and do a good job are not allowed to switch on the security identification . 
 B. Replacement time of the compressor cooling lubricants depends on the use of the environment and acid-base gas, humidity, dust and air. The newly acquired air compressor to run 500 hours shall be replaced with new oil after replacement every 4000 hours normal drain intervals, running less than 4000 hours of machine should be replaced once a year for the first time. 
 C. Oil filter at the first boot and run 300-500 hours must be replaced, the second time in 2000 hours to replace, after the press every 2000 hours of normal time to replace. 
 D. Remember when the repairs and replacement of air filter or intake valve to prevent any debris from falling into the host cavity of the compressor. Operation, will host the entrance closed by hand a few laps of the rotating direction of rotation by host after the operation, to determine without any obstruction, to boot. 
 E. Required to check the tightness of the belt at about 2000 hours of each run of the machine, if the partial pine belt to be adjusted until the belt tension in the whole process; in order to protect the belt, the need to prevent the belt due to oil pollution and scrap. 
 F. Required to replace the oil filter every oil change.