Testing Accessories
Instron has used its wealth of applications and engineering experience to produce the most extensive range of accessories for materials testing instruments in the industry. Made up of hundreds of grips, fixtures, load cells, and other accessories, our vast range of general purpose and application-focused accessories are designed to help you get the most from your materials testing system.
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Product
Extensometers
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Instron offers one of the industry’s most comprehensive ranges of extensometers, providing precise, reliable strain measurement for virtually any materials testing application. From clip-on and automatic contacting units to advanced video and non-contacting systems, Instron’s extensometers deliver exceptional accuracy and repeatability across static, dynamic, and high-temperature environments. Designed and manufactured in-house, these solutions support global ASTM and ISO testing standards, helping laboratories achieve consistent, traceable results across metals, composites, plastics, and elastomers.
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Product
Tensile Grips
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Instron offers a wide array of tensile grip solutions engineered to suit virtually any materials testing application, with force capacities from one gram to two meganewtons covering fibers, films, metals, composites, elastomers, textiles, and more. From classic manual wedge and screw side action grips to pneumatic and hydraulic powered versions, Instron’s grips support static and dynamic testing across ambient and temperature environments. Built to global standards and backed by decades of durability and service, these tensile grips help labs reliably secure specimens while delivering consistent, repeatable test results—even for highly specialized or custom applications.
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Product
Load Cells
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Instron is the only testing system manufacturer that designs and builds its own load cells, ensuring exceptional accuracy, stiffness, and alignment across a wide measurement range. Produced at Instron’s High Wycombe, UK facility, each load cell is temperature-compensated and calibrated to international standards for outstanding repeatability. Backed by the largest commercial deadweight stack in the U.S., Instron’s calibration process delivers precision that often exceeds industry requirements—providing reliable, traceable performance for even the most demanding materials testing applications.
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Product
Environmental Chambers
3119-600 Series
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The Instron environmental chambers are precision thermal enclosures designed to integrate with static or dynamic test systems, enabling evaluation of material behavior under controlled non-ambient conditions. They circulate hot or cold air over specimens and grips using forced-convection to maintain stable temperatures. These chambers are available in a variety of standard sizes (or can be customized), and are compatible with extensometers, grips, and fixtures to provide a turnkey solution for temperature-dependent testing from subzero to elevated conditions.
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Product
Furnaces
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These three zone resistance wire wound furnaces are of split construction to facilitate fast and easy loading of a pre-assembled specimen train. The case is constructed from stainless steel with aluminium and hardened insulation board end plates. The optional front cut-out allows the use of side-entry high-temperature extensometry. Adjustable stainless steel latches keep the furnace halves locked together during use, but are then easily opened once testing is complete. The furnace is available with optional heavy duty brackets or mountings, which attach to a wide range of testing systems. An extensive range of standard controllers is available to suit most test regimes. Custom variants can be specified should the standard range not include a suitable unit.
