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Three cooling systems for hydraulic oil
Sep 19, 2018

The cooling of hydraulic oil is water cooling, air cooling, air cooling + water cooling. Different cooling methods can be selected according to regional climate differences and construction conditions.

water cooling system

water cooling system


air cooling system

air cooling system

First, the water cooling system

The water cooling system consists of inlet and outlet nozzles, valves, return pumps, coolers, inlet pipes, etc. It is generally installed below the underframe. The water cooling system is convenient to use, simple in structure, fast in cooling, easy to obtain cooling water, and low in cost.


a.Cooling range

Cooling range of the water cooling system: AT = 50C.


b. Working principle

When the oil temperature is ≥ 50C, the cooler water gate valve is opened, water flows in from the water inlet, and flows out from the water outlet through the cooler. At this time, the hydraulic oil is exchanged with water in the cooler, and the hydraulic oil is cooled.


Second, the air cooling system

The air cooling system consists of radiators, hydraulic motors, fans, hoses and other components. It has the function of adjusting the temperature of the hydraulic oil.


a,Cooling range

Cooling range for dual cooling systems: AT = 400C.


b. Working principle

When the temperature of the hydraulic oil is higher than 55 °C, the temperature control switch contacts are automatically closed, the action command is issued to make the hydraulic motor electromagnet act, the hydraulic motor starts to work, and the hydraulic oil is cooled under the action of the radiator; when the hydraulic oil When the temperature is lower than 38 °C, the contact of the temperature control switch is automatically disconnected, the hydraulic motor stops working, and the cooling stops.


c. Features

The cooler uses a high-performance radiator and hydraulic motor for long-term operation in harsh environments. Hydraulic drive - environmentally friendly; high refrigeration, small footprint, easy to install.

Easy to disassemble, low cost, no additional cooling cycle is required for cooling media such as air.


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