An under-dimensioned cooling capacity produces a temperature balance that is too high. The consequence is poorer lubricating properties, more internal leakage, a higher risk of cavitation, damaged components, etc. Overheating leads to a significant drop in cost-efficiency and environmental consideration.

  Temperature optimisation
- a basic prerequisite for
cost-efficient operation
Temperature balance in a hydraulic system occurs when the cooler can cool down the energy input that the system does not consume - the system’s lost energy (Ploss = Pcool = Pin – Pused).

Temperature optimisation means that temperature balance occurs at the system’s ideal operating temperature – the temperature at which the oil’s viscosity and the air content comply with recommended values.

The correct operating temperature produces a number of economic and environmental benefits:

• The hydraulic system’s useful life is extended.
• The oil’s useful life is extended.
• The hydraulic system’s availability increases - more operating time and fewer shutdowns.
• Service and repair costs are reduced.
• High efficiency level maintained in continuous operation – the system’s efficiency falls if the temperature exceeds the ideal operating temperature.