Torsion Add-On 3.0
The Torsion Add-On 3.0, engineered for applications that call for precise control of both axial and torque loads, expands the capabilities of Instron universal testing systems to deliver combined axial-torsional testing in a single, integrated setup.
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Overview
Available for 6800 and 5900 Series testing systems, the Torsion Add-On lets you apply axial and torque loads simultaneously or independently to better simulate real-world use conditions. Seamless integration with Bluehill® Universal software simplifies characterization of products across industries, from medical devices and electronics to packaging and automotive components, while supporting key global standards such as ISO 11040‑4, ISO 80369, and ASTM F543.
Better Insights. Faster Results. Smaller Footprint.
Test Real‑World Performance
Replicate the multi‑axis forces your products experience to ensure consistent, high‑quality user performance across countless applications.
Accelerate Development
Combine independent or simultaneous axial and torsional testing in one setup to uncover failure modes faster, reduce testing cycles, and shorten time‑to‑market.
Maximize Benchtop Space
Consolidate separate axial and torsional systems into a single testing setup, freeing up space while expanding your testing capabilities.
Specifications
Torsion Add-On 3.0
Biaxial Load Cells
Addressing Alignment Challenges
Increasingly within component testing, alignment is becoming a critical factor in capturing accurate and repeatable results. Applications such as ISO 80369 Luer connector evaluation or testing of increasingly miniaturized electronics are highly sensitive to even small angular or concentric deviations.
To meet these demands, we’ve introduced design upgrades* that mitigate the primary sources of angular and concentric misalignment with the system and ensure results can be reliably obtained for even the most demanding of applications. Current production units incorporate an updated output shaft for improved runout performance, paired with an XY adjustment base that enables quick, in‑situ corrections for concentricity.
*Available on systems manufactured after March 2026
Common Applications
Luer Lock Connections
Meet ISO 80369 Luer testing requirements with precise biaxial control. The Torsion Add‑On delivers accurate connection evaluation in a single, streamlined setup.
Glass Syringes
Test glass syringes to ISO 11040‑4 with confidence. The Torsion Add‑On covers all mechanical requirements — including torque — for full syringe characterization.
Pen Injectors
Evaluate pen injector usability on one platform. The Torsion Add‑On measures cap removal, dose dialing, and activation forces to ensure reliable performance.
Medical & Consumer Packaging
Achieve realistic opening and secureness testing for complex packaging designs. The Torsion Add‑On enables combined axial‑torsional evaluation for standards like ASTM D7860.
Bone Screws
Test bone screws to ASTM F543 using true‑to‑use biaxial loading. The Torsion Add‑On characterizes mechanical properties and supports development of new designs and materials.
Tubing, Cables & Wires
Characterize torsional durability in medical tubing, guidewires, and electronic cables. The Torsion Add‑On evaluates biaxial performance to improve longevity and prevent in‑use failures.
Flexible Electronics
Assess the durability of flexible circuit boards and displays under realistic loading. The Torsion Add‑On accelerates biaxial test development to validate reliability.
Buttons & Switches
Optimize tactile performance with programmable axial‑torsional testing. The Torsion Add‑On replicates real‑world actuation to refine button and switch feel.
Frequently Asked Questions
The Torsion Add-On 3.0 is an accessory for Instron universal testing systems that adds torsional testing capability, allowing a single system to apply axial and torque loads simultaneously or independently. It's used to characterize products such as medical devices, electronics, packaging, and automotive components under combined axial-torsional loading that better reflects real-world use.
Talk to an Instron Expert
Combined axial-torsional testing comes with its own demands. Tell us what you're testing, and our applications engineers will help you find the right Torsion Add-On setup for a new or existing system. No guesswork required.
Talk to an Applications Engineer
Tell us about your testing needs, and we'll help you configure the right frame, load cell, grips, and software for your lab. Please complete the form below, and we'll respond within 1-2 business days. For a faster response, call +1-800-473-7838 or +1 781 828 2500 if you are outside of the US.
