Hydraulic oil radiators are used in construction machinery that uses hydraulic oil as a force transmission medium, such as: excavators, concrete delivery pumps, fine mortar pumps, boom pumps, truck-mounted pumps, pile drivers, trenchers, rotary drilling rigs, paving Machines, trenchless equipment, air compressors, road rollers, etc. This series of products are mainly used in the circuit of hydraulic system. When working, the high-temperature oil in the hydraulic system flows through the hydraulic oil cooling device, and performs efficient heat exchange with the forced flow of cold air in the heat exchanger, so that the oil temperature drops to the working temperature to ensure that the main engine can continue to operate normally, so that the work can be successfully launch.