An air compressor is a machine that can compress the air in the atmosphere into a high-pressure gas. Its working principle is to suck in the air in the atmosphere through the compressor, then compress it into high-pressure gas, and store it in the gas tank. Air compressors are widely used in many fields, such as automobile manufacturing, construction, medical and food processing industries, etc. Based on different usage requirements and application scenarios, air compressors can be divided into various types, including rotary air compressors, piston air compressors, centrifugal air compressors, etc. When choosing an air compressor, factors such as frequency of use, gas demand, power and pressure need to be considered to ensure optimal performance and economy.