What are some of the common issues with hydraulic pumps?

Not all hydraulic pumps are created equal. Each of the three types mentioned above have unique pros and cons.

For example, gear pumps, though relatively simple and economical, may struggle to maintain flow consistency because of their tendency to pulsate in high-pressure situations. They can also get noisy and aren't the easiest to service.

On the other hand, vane pumps are known to provide smooth and efficient fluid flow at higher pressures, making them ideal for applications requiring steady operation. They're also typically quieter and easier to service compared to gear pumps. But they also often cost more.

And piston pumps, while they are available in various designs (e.g., axial, radial and swashplate) to suit a range of unique applications, are often more complex and expensive than other types of pumps.

Major causes of premature pump failure

Up to 95 percent of hydraulic pump failures are caused by aeration, cavitation, contamination, excessive heat, over-pressurization and improper fluid.
Explore more about the lubrication challenges of modern hydraulic equipment through the below posts:

The Journey Towards a More Energy Efficient Hydraulic System

What Additive Components Are in Your Hydraulic Fluid

How it Works: Hydraulic Pumps