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Air Cooled Oil Coolers

Undeniable Proof That You Need Air Cooled Heat Exchangers

“I am looking for an Air Cooled Heat Exchanger Manufacturer who will give me an inexpensive oil cooler”


We were recently approached by a hydraulic equipment manufacturer for a quote on an Air Cooled Oil Cooler. When we asked him for details about his application, his answer was “Just give me an inexpensive oil cooler. Actually, I don’t need one as I am using a large tank of 750 liters. I just need to complete the bill of materials to satisfy the customer”. For us, this is not an uncommon response. On a little prodding, he disclosed that his hydraulic system used a 75 HP motor coupled to a gear pump delivering 160 LPM oil flow. The equipment had a continuous duty cycle.

If the heat produced during the work cycle is more than the heat dissipated from the tan,k surface a heat exchanger is required. In continuous duty systems, if the wasteful energy that is converted into heat cannot be dissipated effectively by radiation naturally from the surface of the tank we do need an external oil cooler. The amount of heat that a tank can dissipate with respect to the temperature difference between the oil temperature & the temperature of the ambient air can be estimated with the help of the table below. Read More

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