Application range of mobile screw air compressor Mobile screw air compressors are used in mining, water conservancy, transportation, shipbuilding, urban construction, construction and other industries. At present, the air compressors on the market are mainly divided into screw air compressors, piston air compressors and centrifugal air compressors. Piston-type air compressors have low investment in equipment and have been used by many companies in the past, but their gas production efficiency is poor, and they are gradually being replaced by screw-type air compressors. In my country, mobile screw air compressors are replacing other types of air compressors at an alarming rate.