Hydraulic Oil Cooler Supply for Mobile and Industrial Systems

Blog | July 27th, 2026

Source hydraulic oil coolers for mobile and industrial systems from MHS in Melbourne—confirm heat load, airflow and motor requirements.

Excess oil temperature can reduce fluid life and affect hydraulic performance, but selecting a cooler by physical size alone is risky. Mobile Hydraulic Specialties supplies Parker and Olaer cooling options and application support for mobile and industrial systems.

What Is a Hydraulic Oil Cooler?

A hydraulic oil cooler is a heat exchanger that removes heat from hydraulic fluid and transfers it to air or another cooling medium. MHS publishes passive and fan-cooled options with hydraulic, AC and DC motor configurations.

Its hydraulic products range includes oil coolers for industrial applications and Olaer heat exchangers for mobile and industrial equipment. Published heat-transfer capability extends up to 45 kW across available configurations, subject to selection conditions.

What Information Determines Cooler Selection?

Effective selection starts with operating data:

  • Estimated heat load rather than only installed motor power
  • Desired oil temperature and maximum ambient temperature
  • Hydraulic fluid type, viscosity and flow rate
  • Permissible pressure drop through the cooler
  • Available airflow and risk of dust or debris blockage
  • Electrical supply or hydraulic fan-drive requirements
  • Mounting space, orientation and vibration exposure
  • Duty cycle, peak load and continuous operating periods

A 45 kW catalogue rating does not mean every cooler will reject 45 kW in every installation. Heat rejection changes with temperature difference, airflow, contamination and operating conditions.

Passive, AC, DC or Hydraulic Fan Cooling?

Passive cooling can suit applications with adequate natural airflow and a modest heat load. AC-powered fan coolers are commonly considered for stationary industrial systems with a suitable electrical supply. DC configurations may suit vehicle-mounted equipment, while hydraulic fan drives can be considered where hydraulic power is available and electrically driven airflow is unsuitable.

The final configuration must fit the machine and control strategy. Thermostatic switching, bypass arrangements, fan protection, maintenance access and noise may also affect the design.

Treat Overheating as a System Problem

A larger cooler will not correct every temperature issue. Restricted filters, incorrect relief-valve settings, excessive leakage, undersized reservoirs, blocked airflow or inefficient components can generate or retain unnecessary heat.

Check operating temperature, system pressure, filter condition, oil level, cooler cleanliness and recent machine changes before replacing equipment. MHS also provides hydraulic system design and service, allowing buyers to discuss the cooler as part of the complete fluid-power system.

Hydraulic work involves stored energy, hot fluid and moving plant. Assessment and installation should be completed by competent personnel using an appropriate isolation procedure and the Safe Work Australia plant risk code as relevant guidance.

Send Enough Data for an Application Review

An enquiry should include the existing cooler model, system schematic where available, oil type, measured temperatures, duty cycle, ambient conditions, available power and photographs of the installation area. State whether the request concerns an exact replacement or a recurring overheating problem.

MHS is an authorised distributor of Parker products and a distributor of Rineer hydraulic vane motors. Its offer covers component sales, application, design, service and installation across hydraulic and pneumatic systems.

Need a cooler selected for an actual duty cycle? Contact Mobile Hydraulic Specialties with your system data to discuss hydraulic oil cooler supply in Melbourne.

Mobile Hydraulic Specialties Pty Ltd

Factory 89, 38-40 Popes Road
Keysborough, Victoria, 3173

Phone: (03) 9798-6511

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Contact Us

Mobile Hydraulic Specialties Pty Ltd

Phone: (03) 9798-6511
Address: Factory 89, 38-40 Popes Road, Keysborough, Victoria, 3173