How to Select the Right Hydraulic Oil

How to Select the Right Hydraulic Oil

Hydraulic oil is used to transfer power within hydraulic machinery and equipment. On the other hand, hydraulic oil and hydraulic fluid are terms that are sometimes used interchangeably.

Hydraulic fluid has many roles in the smooth operation of a well-balanced and designed system. These roles range from a heat transfer medium, power transfer medium and a lubrication medium. For most lubricated machines, there are plenty of options when it comes to lubricant selection. But how do you know if you're using the right hydraulic oil? Most lubricant mis-specifications don't lead to sudden and catastrophic failure, but rather they shorten the average life of the lubricated components and, thus, go unnoticed.

With hydraulics, there are two primary considerations - the viscosity grade and the hydraulic oil type. Viscosity is of paramount importance in choosing a fluid. These specifications are typically determined by the type of hydraulic pump employed in the system, operating temperature and the system's operating pressure. When selecting a hydraulic fluid, it is very critical to determine the system's needs: viscosity, additives, operation, etc. which in order to ensure the system's ability to function properly and attain long life.

When selecting the appropriate viscosity grade, look for the optimum viscosity required by the pump. Check the operating temperature of the pump and see if it falls between the temperature ranges of the lubricant in question. If not, you may need to increase or decrease the viscosity of the lubricant to achieve the desired, optimum viscosity. As you can see, selecting the proper hydraulic fluid for the application is not a hard task, but it does require time to research the application, determine the resulting cost and decide which fluid type is best.

Grades of Hydraulic Fluid

Choosing the Right Hydraulic Fluid Lubrication. Type of fluid is best for a particular equipment Data Sheet to show how to select the right hydraulic oil for your machinery. With hydraulics, there are three grades for considerations - the viscosity grade and the hydraulic oil type grade 32-46-68. These specifications are typically determined by the weight and viscosity of the oil. 

HLJH experts offer advice based from years of expertise in the field. If you still have questions on its use or simply want to place an order, you can do so by giving our friendly and knowledgeable team a call on +886-4-25332210 or send inquiry to us.

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