Hydraulic Heat Exchangers / Coolers

Keeping Hydraulic Systems at Optimal Temperature

Hydraulic heat exchangers and coolers are essential components for maintaining the efficiency, reliability, and longevity of hydraulic systems. Excessive heat build-up can reduce performance, accelerate wear, and shorten the lifespan of hydraulic components. By transferring heat from hydraulic fluid to air or another fluid, heat exchangers ensure systems remain within safe operating temperatures.

At Hydraulics Online, we supply a wide range of hydraulic heat exchangers and coolers – including AC, DC and hydraulic fan-driven air blast coolers, offline cooling units, and thermostats – with expert advice to help you size and select the right solution for your application.

Our website shows only a selection of what we supply. For impartial advice and access to our full range of hydraulic components, contact our expert team.

AC Fan Driven Air Blast Coolers. For impartial advice and access to our full range of hydraulic components, contact our expert team.

A hydraulic cooler is a mechanical device used to transfer heat from a fluid to air or another fluid.

Key features include:

Finned tube construction – one fluid flows inside the tubes, while air or another fluid passes outside.
Heat transfer through conduction – excess heat is moved across a conducting wall to maintain fluid temperature.
Versatile cooling methods – available in air blast, water-cooled, and offline cooling configurations.
Temperature regulation – often paired with thermostats for automatic control.

Improved reliability – prevents overheating and protects sensitive hydraulic components.
Extended equipment life – reduces wear caused by high operating temperatures.
Energy efficiency – maintains optimal fluid viscosity for smoother operation.
Flexible installation – available in multiple cooling formats to suit different environments.
Cost savings – reduces unplanned downtime and maintenance costs.

Hydraulic coolers are widely used in:

Mobile machinery (construction, agriculture, forestry)
Industrial automation and process control
Marine and offshore hydraulic systems
Energy and utility installations
Material handling and lifting equipment

They are particularly valuable in systems where continuous operation generates significant heat loads.

Why are hydraulic coolers necessary? They prevent overheating, which can damage hydraulic components and reduce system efficiency.

How do I size a hydraulic cooler correctly? Correct sizing depends on system flow, operating pressure, and expected heat load. (See our guide on sizing hydraulic coolers).

Can hydraulic heat exchangers be used in mobile equipment? Yes, AC and DC fan-driven coolers are commonly used in mobile machinery.