The operating temperature of a static or circulated oil bath has a direct impact on the useful lifespan and effectiveness of the lubricant. For every 18-degree increase in temperature above 130 degrees F, the rate of chemical reactivity doubles. In practical terms, if you are achieving a two-year lifecycle on a charge of hydraulic oil in a tank operating at 136 degrees F and can find a way to decrease the temperature of the oil to 118 degrees F, then you can expect to double your hydraulic fluid life. An easy way to check to see if you have room for improvement is to lay your hand on the side of the tank. If it is hot enough that you cannot leave your hand on the tank for more than a couple of seconds, then you are operating at roughly 145 to 150 degrees F. A fan-type heat exchanger can be installed for less than $1,000. With the right flow and ambient temperature, it could reduce tank temperatures to the desired level.
Join us in Birmingham, Ala., on February 7-9 for
Machinery Lubrication training.
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