Hydraulic Pump Motor Test Bench: How to Choose the Right Testing Capacity

Selecting a right hydraulic pump motor test bench is a critical decision for hydraulic repair workshops, equipment manufacturers, and maintenance service providers. An undersized test bench may not meet the testing requirements of high-power hydraulic components, while an oversized system can increase investment and operating costs unnecessarily.

To make the right choice, buyers should evaluate the hydraulic components they need to test, their operating parameters, and their future testing requirements.

1. Identify the Hydraulic Pumps and Motors You Need to Test

The first step is to determine which hydraulic components will be tested on the bench.

Typical applications include:

• Axial piston hydraulic pumps

• Axial piston hydraulic motors

• Excavator travel motors

• Excavator swing motors

• Hydraulic valves cylinders

Different components have different testing requirements. For example, a test bench designed for small agricultural hydraulic components may not be suitable for large excavator travel motors operating under high loads.

Before purchasing a test bench, prepare a list of component models, displacement ranges, rated pressures, and required testing speeds.

2. Calculate the Required Hydraulic Power

Hydraulic power is one of the most important factors when selecting test bench capacity.

A test bench with a 160 kW drive motor may be a candidate for this application, but its suitability must be confirmed against continuous-duty performance, maximum pressure and flow, and the operating range of the complete test system.

3. Choose the Appropriate Drive Motor Power

The drive motor provides mechanical power for the testing process. Its required rating depends on the hydraulic component's maximum testing load and the test bench's mechanical and hydraulic efficiency.