Eccentric Roller Grips for Thin and Flexible Samples

Eccentric roller grips are self-tightening fixtures for tensile testing of thin films, rubber sheets, flexible plastics, and other low-strength materials. They are designed to hold delicate specimens securely without damaging them.

They suit the soft, stretchy materials that standard jaws struggle to hold. To match a set to your materials, request a personal quote.

The design uses an off-center roller that presses the specimen against a fixed surface. As the tensile load increases, the roller rotates and adds clamping force, so the grip tightens itself under load.

This adaptive action keeps hold of the specimen as it stretches. Learn more about our tensile testing equipment.

They are made for thin and flexible, low-strength materials, including:

• Thin films
• Rubber sheets
• Flexible plastics

These are exactly the materials that elongate and thin under load. Explore the full grips and fixtures range.

They use an off-center roller pressing the specimen against a fixed surface, which is well suited to thin, flat, flexible specimens. Other self-tightening grips use cams, scissors, or levers for different specimen shapes.

The roller design shines on films and sheet materials. To compare for your materials, talk to our team.

Yes. The mechanism maintains contact with the specimen as it elongates or reduces in thickness, which helps prevent slipping or tearing during the test.

Keeping steady contact is what makes results on stretchy materials reliable. Learn more about our tensile testing equipment.

To protect delicate materials, the gripping surfaces are commonly coated with rubber or other non-marking materials. This holds the specimen firmly while keeping its surface intact.

Non-marking faces matter for films and finished sheets. See related consumables and jaw inserts.

Yes. As the load rises, the off-center roller rotates and adds clamping force, so the grip effectively tightens itself. No manual adjustment is needed during the test.

That self-tightening behavior is central to holding low-strength specimens. Learn more about our tensile testing equipment.

The lever-operated design allows quick specimen setup while maintaining steady clamping throughout loading. The operator places the specimen and engages the lever, and the roller does the rest as load builds.

Fast, repeatable setup suits high-volume soft-material testing. Explore the full grips and fixtures range.

They are used in research labs, quality control environments, and manufacturing lines that work with soft or flexible specimens.

Anywhere thin films and elastomers are tested, they provide a secure, gentle hold. Explore the full grips and fixtures range.

They are compatible with ASTM and ISO test methods for films, elastomers, and similar materials, so they fit standardized soft-material tensile procedures.

This makes them suitable for both routine and development testing. See our standards and certification.

Yes. Because they maintain contact as the specimen elongates, they hold high-elongation materials such as rubber and film without losing grip late in the test.

That steady hold is what keeps stretch results valid. Learn more about our tensile testing equipment.

You can request a personal quote or order online. Sharing your material, thickness, and load lets us recommend the right grip and surface.

For a configuration matched to your testing, request a personal quote.