Self-Tightening Grips for Deformable and Elastic Materials

Self-tightening grips increase their clamping force as the tensile load is applied, which makes them ideal for materials that stretch or thin during testing. They keep hold of the specimen without the operator adjusting anything mid-test.

This adaptive grip is what keeps soft, elastic specimens from slipping as they elongate. To match a set to your materials, request a personal quote.

Common configurations include:

• Scissor-type grips
• Eccentric cam grips
• Lever-actuated jaw systems

Each uses the rising load to add holding force, and the best fit depends on your specimen. For a recommendation, email sales@tensilemillcnc.com.

They are made for deformable and elastic specimens, including:

• Elastomers and rubber
• Thin plastics and films
• Foams and textiles
• Biomedical materials

These are exactly the materials that change dimension under load. Explore the full grips and fixtures range.

The right choice depends on your specimen’s elongation and how much it thins, its material, and the test load. Those factors point to the configuration, whether scissor, cam, or lever type.

Sharing your material and specimen details makes the choice straightforward. Email sales@tensilemillcnc.com.

At higher elongation, a fixed clamping force can let a specimen slip. Because self-tightening grips add holding force as load rises, they maintain contact and limit slipping right through the stretch.

This keeps the result valid on materials that elongate a lot. Learn more about our tensile testing equipment.

No. The gripping mechanism adapts to changes in specimen dimensions on its own, so the operator does not adjust the grip while the test is running.

That hands-off behavior keeps the test consistent and repeatable. To discuss your setup, talk to our team.

Yes. Biomedical materials are among their typical uses, since these specimens are often soft, elastic, or delicate and benefit from a grip that adapts as they deform.

The adaptive hold protects the specimen while keeping it secure. To set up a biomedical test, request a personal quote.

They are used in quality control labs, textile and rubber production, and research settings for standardized tensile tests on soft or flexible materials.

Anywhere elastic or deformable specimens are tested, they help keep clamping consistent. Explore the full grips and fixtures range.

Yes. For low-friction materials, a static clamp can slip, but the rising holding force of a self-tightening grip helps keep contact as the load increases.

This makes them practical for slippery or coated specimens. Learn more about our tensile testing equipment.

Yes. They support consistent clamping conditions throughout the loading cycle, because the holding force tracks the applied load rather than staying fixed.

Consistent clamping is what keeps elastic-material results comparable. See related consumables and jaw inserts.

Side action grips apply a set clamping force, while self-tightening grips increase force as the specimen stretches and thins. For elastic materials, that adaptive hold is the key advantage.

It removes the trade-off between gripping too hard at the start and slipping later. To compare for your materials, talk to our team.

You can request a personal quote or order online. Sharing your material, elongation behavior, and load lets us recommend the right configuration.

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