Air-X-Changers (AXC), established in 1954, is the worlds leading supplier of air-cooled heat exchangers and one of the oldest and largest manufacturing companies in the natural gas processing industry. AXC coolers......Air-X-Changers (AXC), established in 1954, is the worlds leading supplier of air-cooled heat exchangers and one of the oldest and largest manufacturing companies in the natural gas processing industry. AXC coolers protect gas compression equipment and control the conditioning of natural gas from the wellhead through compression, processing and delivery by pipeline distribution systems. Air-X-Changers units are also widely used in turbine lube oil cooling, landfill gas compression and liquids cooling.