Spin Testing Services

Test Devices provides production spin testing and balancing services of production parts for customers with a repetitive need and who demand schedule predictability along with a quick turn-around time. Whether proof testing critical rotating components before shipment, pre-spinning to achieve required rotational growth prior to finish machining or simplifying the supply chain by consolidating pre-spin with rough machining and/or NDT inspection, Test Devices offers a full range of spin testing solutions.

Download Our Spin Testing Ebook

Spin Tests For Design Validation

Burst Testing

Spin burst testing provides customers with an efficient method to validate rotor designs and establish component safety margins. All tests are performed under the safest conditions, in a robust spin chamber installed in a test cell with double-reinforced concrete walls and ceiling. Optional high speed video recording of the burst event can provide invaluable information about the rotor failure mechanism.
More info »

Low Cycle Fatigue Testing

Establishing the fatigue life of a rotating component is critical to establish safe working life criteria. Test Devices offers LCF spin testing services with rapid cycling capability that accelerates fatigue testing programs, providing customers with life-assessment data earlier. Optional crack detection can monitor component integrity in real time, enabling a test to be stopped prior to rotor failure.
More info »

Dynamic Spin Testing

Test Devices’ Dynamic Spin Testing provides the ability to excite airfoil and disk vibratory modes of fully or partially bladed engine rotor stages. This dynamic testing method enables characterization of the vibratory performance of blade designs to evaluate the effectiveness of damper designs and to assess the high cycle fatigue life of blade and damper systems. Tests can be conducted at ambient temperature or elevated temperatures exceeding 1000°F.
More info »

Thermal Gradient

During operation, rotating components are exposed to stresses due to thermal gradients that can exceed the centrifugal stresses. Test Devices can provide customers with more relevant test data by performing spin tests with thermal gradients that more closely simulate the complete stress state experienced by components in operation.
More info »

Overspeed Certification Test (Proof Testing)

Proof and Overspeed testing are a mainstay for manufacturers of turbomachinery and other rotating equipment. Essentially, a rotating component is accelerated to a certain speed greater than that ever seen in operation. Overspeed testing is included in the FAA certification of aircraft turbine engines. Test Devices has conducted many such tests.
More info »

Download Our Spin Testing Ebook


Spin Tests For Manufactured Parts

Overspeed Testing

With a dedicated machine and a two shift operation, Test Devices offers quick turnaround on repetitive spin/balance operations for single components or multipart lots. Tool Design, including rotor-dynamic and stress analysis, is also available.
More info »

Pre-Spin Testing

When new designs or materials are being introduced, more thorough test data is often required to validate predicted growth models. Test Devices can measure elastic and plastic radial growth of components in real time while rotating. This technique can verify stress and growth models and determine precise gaps between rotating and stationary components in turbomachinery.
More info »


New Call-to-action

Add-On Services

(These services can be added on to any of the spin services listed above.)

Growth Measurement at Speed

Test Devices can measure elastic and plastic radial growth of components in real time at speed. This technique can verify stress and growth models and determine precise gaps between rotating and stationary components in turbomachinery.
More info »

Optical Strain Survey

Traditional strain measurement techniques collect data only from a selected number of locations. Decisions on where to locate strain gages are typically based on analytical models or “educated guesses.” Often, the manner in which a gage is mounted, and the interpretation of the resulting data, is a topic of debate.
More info »

Strain Survey

Test Devices offers comprehensive strain surveys of complex rotating parts. Strain surveys enable customers to understand assembly stresses and determine the properties of materials (including composites) when exposed to operational strain under realistic conditions.
More info »

Tooling & Arbors

Tooling design and fabrication is a specialty of Test Devices. This is hardware that attaches the test component to the drive of the spin rig. It must withstand the same forces as the test article and deform at speed such that it does not impart unrealistic stresses to the test article. This can involve complex engineering solutions for extreme test conditions and when the test article does not have features for attachment.
More info »


Value Props

One-Stop Spin Testing

Test Devices has developed a group of strategic partners – expert and dependable vendors who provide adjunct services to spin testing. This allows customers to produce a single purchase order to Test Devices and benefit from seamless project management, start to finish.
More info »

Data Acquisition & Reporting

All data (including speed, vibration, temperature, and strain) is recorded on digital data-acquisition systems. Customers can be provided with color printouts of the data and electronic copies of the raw data when necessary. Test Devices archives the digital data indefinitely for future customer reference.
More info »


Balancing Services

Spin Testing and Balancing Services often go hand-in-hand. Learn more about our balancing services here.
More info »

Download Our Spin Testing Ebook