Since its establishment in 1980, Donghwa Entec has been supplying air coolers used for low and high speed engines for over 40 years, and our air cooler has been selected as a world class product. The engine’s combustion efficiency can be improved by supplying more compressed air to the engine by cooling the compressed air supplied through a turbo charger. Based on our air cooler technology for ship engines, the air cooler is also used as a cooler for EGR equipment, a NOX (a discharged gas from a ship) reduction equipment.