Protects equipment life
Overheated oil loses its viscosity and lubrication performance drops. An oil cooler prevents early wear in compressors and hydraulic systems.
Product group · Heat Transfer Products
Oil Coolers
A heat exchanger that keeps the oil temperature of hydraulic systems, compressors and gearboxes within safe limits. Available in water-cooled, air-cooled and plate types, adaptable to different installation conditions.
CapacityProject-specific
FluidHydraulic/gear oil + water or air
Shell materialSteel / copper tube
Design pressure10 / 16 / 25 bar
Fan-assisted (air-cooled) and fanless (tube-type) oil cooler options
Why it matters
What does an oil cooler do?
In hydraulic and mechanical systems, friction and pressure loss heat up the oil. An oil cooler removes this heat, keeping the oil and the equipment at a safe temperature.
Keeps operation uninterrupted
Insufficient oil cooling can cause equipment to shut down automatically on a temperature alarm. A correctly sized oil cooler eliminates this risk.
Flexible design matched to a water or air source
By choosing a water-cooled or air-cooled type to match the facility's available chilled water source or water constraints, it adapts to different installation conditions.
Applied across a wide range of equipment
It is a standard complement to a wide range of equipment, including hydraulic power units, compressors, gearboxes, machine tools and injection molding machines.
Types
Sub-types of oil coolers
All three cool oil; what sets them apart is the medium they reject heat to and the shell design.
Water-cooled oil cooler
A compact, efficient shell-and-tube type connected to an existing chilled water or cooling-tower water source.
- High efficiency, compact shell
- Integrates with an existing water circuit
- Periodic maintenance depending on water quality
Air-cooled oil cooler
A standalone type needing no water source, rejecting the oil's heat directly to outside air with the help of a fan.
- No water consumption
- A standalone, self-contained unit
- Performance depends on ambient temperature
Plate oil cooler
A plate design that operates in a smaller volume than a water-sourced shell-and-tube type, for applications with limited space.
- Operates in a very small volume
- Watch pressure loss with high-viscosity oils
- Preferred for clean oil circuits
Selection criteria
What data determines the right oil cooler?
Capacity alone isn't enough. Once the six points below are clear, the choice narrows to a single model.
ParameterWhy it mattersWhat we need from you
Cooling capacity
The heat load to be removed from the oil circuit; it directly determines the cooler's size.
kW
Oil type and viscosity
Hydraulic oil, gear oil, etc.; viscosity affects the heat transfer coefficient and pressure loss.
Oil type + viscosity grade
Oil flow rate and temperature
Inlet–outlet temperatures and the flow rate form the basis of the capacity calculation.
l/min + °C
Cooling medium
Whether a water source is available, or an air-cooled type is preferred; this determines the installation and layout plan.
Water / air
Operating pressure
The oil circuit's operating pressure; it determines the tube wall thickness and connection type.
bar
Connection and installation
Flanged, threaded or welded connection; clarified based on integration with the existing equipment and the installation space.
Connection type and size
For a quote, having the following is enough
It's fine if you don't have all of it. We'll fill in the gaps together with you.
Create a quote request- Cooling capacity (kW)
- Oil type and viscosity
- Oil flow rate and inlet–outlet temperatures
- Whether a water source is available (its flow/temperature, if so)
- Operating pressure
- Mechanical project or specification, if available
FAQ
Questions from the field
The questions we hear most often when quoting oil coolers.
Should I choose a water-cooled or air-cooled oil cooler?
If the facility has a chilled water source (a chiller, cooling-tower water), the water-cooled type is more compact and efficient. If there is no water source, or water consumption isn't wanted, the air-cooled type, which rejects heat to outside air with a fan, is preferred.
What equipment is an oil cooler used with?
It is used to keep oil temperature within safe limits on equipment lubricated or cooled by oil, such as hydraulic power units, compressors, gearboxes, machine tools and injection molding machines.
Why does viscosity matter when selecting an oil cooler?
Oil viscosity changes with temperature and directly affects the heat transfer coefficient. An incorrect viscosity assumption can lead to lower cooling performance than expected.
When is a plate oil cooler preferred?
In applications with limited space, where a water-sourced, compact solution is wanted, a plate oil cooler, which operates in a smaller volume than a shell-and-tube type, can be preferred.
Do you only serve Istanbul?
No. While our office is on Istanbul's Anatolian side (Ataşehir), we supply and ship across Istanbul's European side, the surrounding provinces and the Marmara region, and Turkey as a whole — covering your equipment end to end, from a single source.
Next step
Let's clarify what you need together
Share your fluid type, capacity and operating conditions, and let's work out the right evaporator, condenser or dry cooler together.
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