Gas compression can be divided into volumetric and speed type according to the principle, piston air compressors are commonly used volumetric compressors, while centrifugal compressors are speed type compressors. The advantages of centrifugal compressors compared to piston compressors are obvious: compact structure, small size, large displacement, small consumption of raw materials; less wearing parts than piston compressors, long continuous operation cycle; no friction in the cylinder, no lubrication; continuous and stable air supply.

Dear air separation brings together a large number of highly sophisticated technical research and development talents such as doctors and masters, the research centre has 16 senior technical titles and 20 intermediate technical titles, the company has a number of design experts who enjoy a reputation in the same industry in China to ensure the technological advancement of our small air separation unit and large air separation plant and liquid air separation plant.