The oil cooler is available to realize the heat exchange between two fluid mediums with a certain temperature difference, so as to reduce the oil temperature and ensure the stable operation of the system. It plays an important role in different operating environments and working conditions such as condensation, heating, evaporation and waste heat recovery.

There are many different kinds of oil cooler, among which plate oil cooler includes detachable plate oil cooler (detachable plate heat exchanger) and brazed plate oil cooler (brazed plate heat exchanger); Air - cooled oil cooler includes tube type and plate - fin type. The oil cooler is mainly used for cooling hydraulic oil and lubricating oil. Oil cooler is widely used in plastic machinery, engineering machinery, mining machinery, automobile, steel, wind power, aerospace and other industries.

Oil coolers are widely used in variety industries. For example, in the chemical industry for alcohol fermentation, resin synthesis cooling and so on. In power industry for high voltage transformer oil cooling, generator bearing oil cooling. In machinery industry for a variety of quenching liquid cooling, reducer lubricating oil cooling.

In the machinery industry, hydraulic system and lubrication system are essential parts of each mechanical equipment. The hydraulic system needs to maintain high pressure continuously when working, which will produce a lot of heat, and the oil temperature will rise after a long time of work. If the heat is not released in time, it will lead to the aging and damage of the sealing elements of the system, and the viscosity of the oil becomes lower with the rise of the oil temperature, and the oil pressure can not meet the requirements of the work. To ensure the safe and reliable operation of the unit. The oil temperature must be controlled within the prescribed range. The main reason for the oil temperature rise of the lubrication system is different from that of the hydraulic system, but it is also necessary to control the oil temperature within the prescribed range.