Apollo has designed many compact aluminum coolers which are combination coolers such as: Inter Cooler and After Cooler for two stage reciprocating compressors.Inter Cooler, After Cooler and Radiator for two stage reciprocating compressors.After Cooler , Radiator for single stage reciprocating compressors .After Cooler and Oil Cooler for Screw Compressors.Radiator and Hydraulic Oil Cooler for Excavators, Loaders, Dumpers, Soil Compactors, Concrete pumps.Radiator, Hydraulic Oil Cooler and Charge Air Cooler for turbo charged diesel engines used for concrete pumps, cranes, other construction and mining equipments.