Hydraulic oil is a non-compressible fluid that plays a vital role in the smooth operation of hydraulic systems. In addition to its primary role in transferring power and heat within hydraulic systems, it has a few secondary functions—contamination removal, sealing, and lubrication.
Hydraulic oil has a wide variety of applications. It powers forklifts and log splitters, allows pilots to control vital systems within aircraft, and ensures the proper functioning of hydraulic brakes on tractors and other farm equipment.
Hydraulic fluids can either be mineral (extracted from naturally occurring crude oil deposits that have undergone a refining process) or synthetic (engineered by chemical synthesis).