Understanding the Functions of Hydraulic Oil Coolers

Blog | May 31st, 2016

Hydraulic fluids generate heat when they’re trapped in mechanical systems. The oil rushes through pipes and hoses, which causes resistance and a subsequent build-up of heat. The transmission of the fluid through valves and seals only magnifies the issue, and all of this thermally agitated labour is further agitated by oil-driven mechanical friction. Fortunately, intelligent design practices minimize this fiery scenario, which is where hydraulic oil coolers enter this hot tableau as the ideal cooling solution.

Hot Oils Degrade

All hydraulic fluids are rated with a practical temperature limit. If that limit is passed, then the oil starts to break down and relinquish its non-compressible properties. Viscosity is compromised, the substance separates into sludgy deposits, and the once-productive hydraulic liquid is transformed into a system-degrading goop.

The Functions of Hydraulic Oil Coolers

These devices provide a strong current of heat-abating energy. Passive models are provided with wide cross-sectional area surfaces, airflow controllers that use fins and tubes to leverage the heat exchanging properties of the oil. Meanwhile, dynamic models incorporate powerful electric motors, mechanisms that actively push air through the network of oil-filled tubes, thus temperature-optimizing the hydraulic circuit.

Extends System Usability

The benefits of a cooling cycle are many. The amended thermal load prevents the oil from degrading. The heat generated by the oil pump is negated. It’s the same with the frictional events caused by valves and mechanical seals; they’re canceled by the cooling mechanism. On the practical side, maintenance costs are reduced, the housing won’t burn the skin of an incautious operator, and heat-sensitive mechanical assemblies won’t suffer. That same benefit applies to elastomeric seals, the parts that can crack and fail when metal components conduct immense quantities of thermal energy.

Economically Reliable

When we see hydraulic oil coolers at work, we know the equipment is receiving proper care. The oil is flowing in its optimal condition, fully viscous and loaded with hydraulic energy. Losses are present, but the mechanical prowess of the electrically powered cooler drives air across the tiny copper and aluminium passageways, employing the second attribute of the oil, its ability to function as a heat exchanging mechanism, one that dissipates the heat harmlessly into the surrounding air.

Engineers build special baffles into the system, mechanical parts that support the heat exchanging properties of the oil, but high loads can quickly diminish these temperature correcting components, which is why active coolers are an essential part of the system.

 

Mobile Hydraulic Specialties Pty Ltd

Factory 89, 38-40 Popes Road
Keysborough, Victoria, 3173

Phone: (03) 9798-6511

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