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No matter how familiar you might be with hydraulic machinery, it’s easy to overlook the importance of the hydraulic fluid itself. There are a surprising number of hydraulic fluid characteristics to consider in order to ensure that your system is able to work at full efficiency. For more inputs you can also get in touch hydraulics company in India

The Roles of Hydraulic Fluid

Heat Transfer

When a hydraulic pump is functioning normally, it creates high pressure within the pump. This pressure forces hydraulic fluid into the spaces between parts within the system. While this is an important part of the way that a hydraulic system works, the friction of the molecules in the fluid rubbing against the machinery can build up a tremendous amount of heat.

Removing Contamination

While the perfect hydraulic system would be entirely sealed, the simple truth is that no seal is perfect. That means very small amounts of water may occasionally be introduced into your hydraulic fluid. You may also find dirt or metal particles in your fluid, which is usually the result of wear over time.


One of the most important roles that hydraulic fluid plays is ensuring that your machinery is properly lubricated. Without this lubrication, the metal parts of your equipment would rub against each other, quickly wearing out while producing less effective power. 


First and foremost, hydraulic fluid is an energy transfer medium, which allows pistons, vanes, and other pumps to power your devices. Unlike air, hydraulic fluid is non-compressible, making it ideal for applications that require fast action and more power than could traditionally be achieved with pneumatic systems.