... than 30,000 hours.Technical DataAH Series Hydraulic Fan Oil Cooler specification AHThreadMax. PressureExterior cooling ... powered fanThe heat is transferred from the medium to be cooled to the ambient airCooler can be universally used in hydraulic ... oil,engine oil,lubricating oil and coolant circuitsApplication Field:Machine tools,engineering machine,tunnel,port machinery,hydraulic power unit ...