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Siemens Test Benches: Ensure Drive Testing with SINUMERIK Systems

SEPT. 16, 2025

In the factory, Siemens SINUMERIK systems are almost synonymous with “precision” and “stability”. Whether it's high-precision parts for aerospace or series production for the automotive industry, it's there. But as we all know, it's not enough for the machine itself to maintain this kind of stable performance, it's the testing and validation of the drives that makes the difference.

In Songwei, we have come into contact with a number of customers who have re-installed their machines without rigorous testing of the drives, resulting in repeated failures and production line stoppages that far exceed the cost of the repairs themselves. To solve this problem, the Siemens test bench becomes an indispensable tool. It can realistically simulate the operating environment of the machine tool, help engineers to determine the faults, verify the repair effect, and also ensure the safety of operation.

Siemens Test Benches: Ensure Drive Testing with SINUMERIK Systems
The Siemens Test Benches We Commonly Use
At Songwei, there are three common Siemens test benches: 840DSL, 810D and 840D. Each generation has its own positioning and is suitable for different factory environments.

1. Siemens 840DSL Test Bench
Test Range: NCU/TCU Main Board; 3130, 3131 Series Power Supplies; 3120, 3121 Series Drives.
Features: High diagnostic accuracy, especially suitable for modern automated workshops.

2. Siemens 810D test bench
Test Range: CCU Main Board; 611 Series Power Supplies; 611 Series Drives; PCU50/20.
Features: Stable and reliable for old 611 systems.
Application Scenario: Many factories in Europe and Asia are still using this system, which has low maintenance cost but not low testing requirement.

3. Siemens 840D test bench
Test Range: NCU Main Board; 6SN1145 Series Power Supplies; 61123 Series Drives; PCU50/20.
Features: Good compatibility, to ensure the stability of the classic 840D system
Application Scenario: Those traditional factories relying on 840D, pursuing safety and standardized testing process

Many machine shops use 840D test benches as their "workhorse” because there are still many of them on the market and the volume of returned parts is high.

Why Songwei?
Many of our customers choose us not only because we offer Siemens test benches, but also because Songwei combines "equipment + experience”:

* Compliance with European standards: Our test benches are built according to international standards, both in terms of design and safety;
* Accuracy and reliability: It highly simulates the actual CNC machining environment;
* Prioritize safety: Self-contained protection mechanism to avoid equipment and personnel risks during the test process;
* Wide coverage: Supports 840DSL, 810D and 840D, no matter which generation you are using, you can find a solution;
* Professional support: Our team has rich maintenance and testing experience and can provide installation, training and technical guidance;
* Global service: Songwei test benches are used by customers from Europe to the Americas to Asia.

For customers, this means not only buying a piece of equipment, but also getting a reliable team to support them. If you have cross-generation compatibility or special needs, we can also provide customized test solutions.

Summary 

The value of a Siemens test bench is not just that it "measures”. It's about peace of mind for maintenance, efficiency for your plant, and a smoother transition between old equipment and new systems.

Whether you need an 840DSL test stand for a modern system, an 810D test stand for maintaining an old machine, or an 840D test stand for stabilizing a classic configuration, Songwei has a solution that meets European standards.

Feel free to contact Songwei to learn more about or order a Siemens test bench, and we will give you the best advice and support for your equipment and needs, so that your CNC system is always in the best condition.

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