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Air Cooler, motoinverter series, EL MI

OK-MI Air cooler

The EL MI series is a complete oil/air cooler system with an axial fan for industrial applications.

In hydraulic systems, energy is transformed and transmitted. During this process, efficiency losses occur, i.e. mechanical and hydraulic energy is converted into heat. Indeed, it is the purpose of the cooler to dissipate this heat and to maintain the thermal balance of the hydraulic fluid.


These high-performance coolers equipped with axial fans and motoinverter are suitable for hydraulic cooling applications, with both return line and off line versions available.
Typical applications include industrial power units, lubrication systems (i.e. gearboxes) and machine tools.


  • Controlled Cooling Power
  • Constant Output Oil Temperature
  • 16 Bar Dynamic Pressure Rating

OK-EL MI coolers use high-efficiency axial fans driven by motoinverter and sturdy aluminum bar-and-plate cooling elements. Therefore, this guarantees immediate adjustment to required cooling performance under changing load conditions and superior cooler durability.
Cooling power, as a function of fan speed, is controlled depending on the required oil outlet temperature. The main advantage of this cooler/motoinverter product line is the integration of oil temperature control via proportional fan speed into one very compact design. Further advantages are a lower noise level and lower power consumption over the term of a year.

Contact us for more information on this product

HYDAC Australia

HYDAC New Zealand

AUSTRALIA 1300 449 322

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