eXpert 9300
Rotating Beam Bending Fatigue Testing System
The eXpert 9300 is a rotating beam fatigue testing system designed to perform fully reversed bending fatigue tests with a constant bending stress applied across the specimen. Built to support ISO 1143 rotating bending fatigue testing at frequencies up to 100 Hz, the system enables efficient generation of S–N (stress–life) data for metals and other materials. Its precision four-point loading configuration ensures a uniform bending moment and highly repeatable results, making the eXpert 9300 an accessible, high-performance solution for fatigue characterization, durability studies, and materials development.
Faster, More Efficient S–N Curve Generation
The eXpert 9300 rotating beam fatigue test system is purpose-built to generate S–N (stress–life) curves faster and more cost-effectively than conventional axial fatigue testers. By applying a constant bending stress across the specimen, rotating beam testing eliminates the need for complex load control, extensometers, and high-force actuators typically required in axial systems. The result is a streamlined, repeatable fatigue method that delivers high-quality S–N data with lower system cost, reduced setup time, and minimal operator intervention.
Rotating beam fatigue testing is especially well suited for comparative materials studies, alloy development, heat treatment evaluation, and production screening—where large datasets are required quickly. With high-frequency operation and simple specimen geometry, the eXpert 9300 enables laboratories to generate statistically meaningful fatigue data in a fraction of the time and cost of axial fatigue testing.
High-Frequency Fatigue Testing up to 100 Hz
Capable of performing ISO 1143 fully reversed rotating bending fatigue tests at frequencies up to 100 Hz, the eXpert 9300 dramatically shortens time to failure compared to axial fatigue systems operating at lower frequencies. High-speed testing allows engineers to build complete S–N curves quickly, accelerating materials qualification, process optimization, and comparative fatigue studies.
Fully Automated 50 N·m Loading
The eXpert 9300 delivers up to 50 N·m of bending moment using an automated linear actuator, removing the manual deadweights and operator handling common in traditional rotating beam systems. This automated, balanced loading design ensures consistent stress application and repeatable results while reducing labor, improving safety, and keeping test costs low—key advantages over force-controlled axial fatigue machines.
High-Temperature Fatigue Without Added Complexity
For applications requiring environmental control, the eXpert 9300 can be configured with high-temperature heating chambers up to 600 °C. Horizontal tube furnaces with PID temperature control provide stable, uniform heating while maintaining the simplicity and efficiency of rotating beam fatigue testing—without the cost and complexity of high-temperature axial fatigue frames.
| PARAMETER | SPECIFICATION |
|---|---|
| Standard Compliance | ISO 1143 |
| Mounting Hardware | ER32 Collets |
| Maximum Cyclic Frequency | 100 Hz (at 6,000 RPM) |
| Shank Diameter | 1 – 20 mm |
| Sample Length | 90 – 220 mm |
| Sample Gauge Diameter | Determined by user / ISO 1143 |
| Sample Heating Capability | Up to 600° with furnace add-on |
Advanced Control Systems
The rotating beam fatigue controls platform combines a dedicated digital controller with LineLogger software to manage cycle execution, monitoring, and data capture in one system. The controller handles the real-time work — regulating spindle speed, counting every rotation, and enforcing stop conditions at failure or target cycles. LineLogger sits above that layer, logging cycle count, test status, and run conditions continuously while the test is running. This split keeps time-critical control functions in hardware, where they belong, and pushes data handling and review to software, where it’s easier to manage. The result is a system that runs unattended for long fatigue tests while still producing clean, cycle-accurate data that’s ready for fatigue life analysis as soon as the test ends.
Closed-Loop Control
The rotating beam fatigue controller maintains precise shaft speed and cycle count throughout the test. Speed is digitally regulated from 300 to 6000 RPM, ensuring a stable fully reversed bending condition at every cycle. The controller continuously tracks rotations and spindle status, allowing tests to run to exact cycle targets or stop on specimen failure. This closed-loop control minimizes drift during long-duration tests and ensures stress-life data is directly tied to real, measured cycles — not estimates. The result is tighter correlation between commanded test conditions and observed fatigue life, even at high cycle counts.
Fast, Repeatable Test Setup
Test setup is driven by the controller and software working together. Operators define specimen geometry, target stress level, and stop conditions once, then reuse the same configuration across runs. The controller applies consistent rotational speed and moment without manual tuning between tests. This reduces setup time, limits operator-to-operator variation, and makes it practical to run multi-specimen or multi-stress-level fatigue programs without rebuilding test logic each time. Validated test definitions can be saved and recalled, supporting consistent fatigue testing across shifts, operators, and long-term studies.
Cycle-Based Fatigue Results
The controller captures real-time cycle count, rotational speed, and test status for every specimen. This data is passed directly to the software for fatigue life reporting and S-N curve development. Tests automatically stop at failure or at predefined cycle limits, producing clean, traceable results aligned with rotating beam fatigue standards. Data can be reviewed immediately or exported for further analysis, supporting both research and production fatigue validation workflows. Because cycle counting and stop logic are handled at the controller level, fatigue life results remain consistent even during long unattended test runs.
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Long-term Value
With every purchase, ADMET offers free technical and application support for the life of your testing system. Whether you’re faced with a technical challenge or need an outside perspective on test design, we will partner with you to make your testing easy and successful.
Calibration Services
ADMET offers calibration services on new materials testing systems both before shipment and as a field service for any customer in need. Although ADMET utilizes the highest quality equipment available, regular calibration ensures that these components perform as required so the results generated can be trusted with confidence. A list of ADMET’s accredited calibration scope is available via the link.
Retrofit Capabilities
ADMET can extend the life of an aging testing system of any brand with our retrofit services. We often upgrade older systems with modern controllers, advanced software, and new fixturing to meet today’s materials testing needs. This extends lifespan, improves functionality, and improves the lifetime value of your investment. For a list of our retrofit capabilities, visit our retrofit webpage.
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eXpert 9300 Brochure