Air cooled compressor is a compressor cooled by atmospheric air circulated around the cylinders or casing. An air-cooled compressor relies on ambient air blowing over the cylinder head to cool the compressor. To aid in cooling, the cylinder and intercooler have cooling fins mounted on them. Air-cooled compressor is a kind of piston compressor.

Air cooled generators are available with open ventilated and with a closed-air circuit or totally enclosed water to air-cooled circuits. Generators with open-air circuit cooling are low-cost and have no need for additional cooling. Generators with closed-air circuit cooling are built for capacities up to 480 MVA. These machines are well suited for use with single shaft combined-cycle plants where the gas turbine and the steam turbine drive the same generator.

Air-Cooled Heat Exchangers are an all-aluminum bar & plate design featuring a wide variety of thermally efficient internal and external fin patterns. An air-cooled heat exchanger is simply a product, which cools a circulating fluid within finned tubes by forcing ambient air over the exterior of the tubes. Air-cooled heat exchangers are commonly used in petrochemical facilities to cool process fluids. These heat exchangers have an integral electric motor or fluid powered fan for cooling/heat removal of media. Some air-cooled heat exchangers are frequently used in process plants as condensers and coolers.