5 Factors to Consider when Selecting Hydraulic Pumps for Your Application

Blog | January 6th, 2022

When it comes to the operations of devices and machines these days, a lot of manufacturers would maximise hydraulic pumps due to their associated working principles.

Hydraulic pumps work by converting mechanical energy into hydraulic energy. Once devices and machines are turned on, the hydraulic pumps are expected to carry out two functions. First, they are expected to generate a vacuum at the pump inlet, forcing the hydraulic liquid to flow from the reservoir into the inlet line to the pump. Second, hydraulic pumps will deliver hydraulic fluid into the pump outlet before forcing it into the hydraulic devices and machines.

The working principles and functions of hydraulic pumps allow them to be very useful in powering up excavators, cranes, vacuum trucks, dump trucks, and other powerful machines. Now, if you want to select the best hydraulic pump for your application, then here are some factors that you should consider.

  1. Fluid Viscosity

One of the factors you should consider when selecting the best hydraulic pumps for your application is the viscosity of their hydraulic fluid. Viscosity pertains to the thickness of the liquid inside the pump, which can directly affect the performance of the hydraulic pumps. Opting for hydraulic pumps that possess a fluid with a maximum kinematic viscosity rating would be best for your application as it can maintain the efficiency of the pumps. This type of fluid can also minimise pumps’ wear and tear.

  • Type of Fluid

Another factor that must be considered when selecting the right hydraulic pumps for your application is the type of hydraulic fluid. Your pumps and your chosen hydraulic fluid should be compatible with each other to avoid unnecessary expenses. One type of hydraulic fluid that is often recommended for pumps is based on mineral oil. When maximising this type of fluid, you can expect enhanced lubrication properties on your systems. Other types of hydraulic fluids are biodegradable, water-glycol, and phosphate ester.

  • Flow Ratings

Hydraulic pumps that have proper flow ratings can effectively move and meet all your demands. When calculating the flow rate of the hydraulic pumps, you may want to obtain the values of pump speed in revolutions per minute, pump efficiency in a percentage, and the displacement value.

  • Torque Ratings

The power of the pump can only be attained when combining torque and rotational speed. Knowing the torque, alternatively, lets you pinpoint the amount of power you would need for your applications. To find the needed torque ratings for your applications, you may want to compare the old hydraulic machine with a new one and let them conduct similar operations. If you do not have an old hydraulic machine anymore, then you must calculate the torque manually.

  • Displacement Type

One more factor to consider when looking for the best hydraulic pumps for your applications is their displacement type. Hydraulic pumps may have either fixed displacement or variable displacement configurations. The main difference between these configurations lies in the amount of fluid they can displace. Fixed displacement pumps can move a similar amount of fluid on each cycle. Variable displacement pumps, alternatively, tend to change their output based on the application requirements.

To know more about hydraulic pumps, you can call us at Mobile Hydraulic Specialties.

Mobile Hydraulic Specialties Pty Ltd

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

Phone: (03) 9798-6511

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Contact Us

Mobile Hydraulic Specialties Pty Ltd

Phone: (03) 9798-6511
Address: Factory 89, 38-40 Popes Road, Keysborough, Victoria, 3173