





Pneumatic Clamping Grips for Consistent Specimen Holding
Pneumatic clamping grips for consistent, high-cycle holding
Pneumatic grips use controlled air pressure to apply stable and repeatable clamping force to the specimen.
Overview
Pneumatic grips use controlled air pressure to apply stable and repeatable clamping force to the specimen. They are operated by a hand switch or foot pedal, and the integrated air cylinders close the jaws with adjustable pressure that can be set according to the material being tested. This helps maintain surface integrity while holding the specimen securely during tensile loading.
These grips are commonly used for rubber, plastics, textiles, and other flexible or soft materials where controlled clamping is important. The applied pressure can be adjusted to help limit crushing or slipping during standardized tensile procedures.
Due to their quick operation, pneumatic grips are used in high-throughput testing environments such as quality control labs and production settings. Variants including pneumatic side action designs are suited for mid-range test forces, often up to 20 kN, and support centered specimen alignment during loading.
Pneumatic grips are compatible with testing performed under ASTM, ISO, and similar standards, making them suitable for routine testing and development work across materials that benefit from adjustable, repeatable clamping conditions.
People Also Searched For

Wedge Clamping Grips for High-Strength Metal and Composite Specimens
Wedge clamping grips for high-strength metal and composite specimens
View details →
3-Point and 4-Point Bending Fixtures for Uniform Moment Flexural Testing
3- and 4-point bending fixtures for uniform-moment flexural testing
View details →
Grips and Fixtures for Tensile, Shear, and Flexural Testing of Wood Specimens
Grips and fixtures for tensile, shear and flexural testing of wood
View details →
Composite Testing Grips and Fixtures for Tensile, Shear, and Delamination Evaluation
Grips and fixtures for tensile, shear and delamination of composites
View details →Frequently Asked Questions
What are pneumatic clamping grips used for?
Pneumatic clamping grips use controlled air pressure to apply a stable, repeatable clamping force to the specimen. That consistency makes them a strong choice for soft and flexible materials that need a controlled hold rather than raw clamping force.
They are especially useful where many specimens are tested each day and the grip has to behave the same every time. To match a set to your materials, request a personal quote.
Can I adjust the clamping pressure on pneumatic grips?
Yes. The applied pressure is adjustable and can be set according to the material, which helps limit crushing on delicate specimens and slipping on tougher ones. This keeps the surface intact while holding the specimen securely, and the pressure is simply set to match the material.
Tuning the pressure to the material is key to clean, repeatable results. See related consumables and jaw inserts.
How do pneumatic grips work?
Integrated air cylinders close the jaws, and the operator triggers them with a hand switch or a foot pedal for hands-free operation. The clamping pressure is adjustable, so it can be set to suit the material being tested.
This gives a secure hold while keeping the operator’s hands free to position the specimen. Learn more about our tensile testing equipment.
Which materials suit pneumatic clamping grips?
Pneumatic grips are commonly used for soft and flexible materials, including:
- Rubber and elastomers
- Plastics and films
- Textiles
Adjustable pressure lets the grip hold these securely without damaging them. Explore the full grips and fixtures range.
How do I choose the right pneumatic grip?
The right choice comes down to a few things:
- The material and how delicate its surface is
- The peak force, up to around 20 kN for side action designs
- Your test volume and standard
Those set the grip and pressure range you need. For a recommendation, email sales@tensilemillcnc.com.
Do pneumatic grips damage soft specimens?
The adjustable air pressure is what protects the specimen. Setting a lower pressure for delicate materials helps maintain surface integrity while still holding the specimen firmly enough for the test.
This makes them well suited to rubber, film, and textile work. Learn more about our tensile testing equipment.
Which standards can I run with pneumatic grips?
Pneumatic grips are compatible with testing performed under ASTM, ISO, and similar standards, which makes them suitable for both routine testing and development work.
The adjustable, repeatable clamping supports standardized procedures across many materials. See our standards and certification.
Why are pneumatic grips good for high-throughput testing?
Because they close with a quick switch or pedal action, pneumatic grips speed up specimen changeover, which suits high-throughput environments such as quality control labs and production settings.
Faster, repeatable clamping means more tests per shift with consistent conditions. To plan a high-volume setup, request a personal quote.
What force range do pneumatic grips cover?
Pneumatic grips are suited to mid-range test forces. Pneumatic side action designs are commonly used up to around 20 kN, which covers most soft-material and general tensile work.
Air actuation gives a steady, repeatable clamping force that is easy to reset between specimens, which is part of why pneumatic grips suit high-volume work at these mid-range loads.
For higher forces, a wedge or hydraulic grip is the better match. To confirm the right grip for your loads, request a personal quote.
Do pneumatic grips keep the specimen centered?
Yes. Pneumatic side action designs support centered specimen alignment during loading, which keeps the load axial and helps produce consistent results.
Good alignment matters just as much on soft materials as on metals. Learn more about our tensile testing equipment.
How are pneumatic grips different from manual side action grips?
Both apply lateral clamping, but pneumatic grips do it with air cylinders and a switch or pedal, so the force is repeatable and hands-free. Manual grips rely on the operator turning a screw or lever.
For high-cycle, repeatable work, the pneumatic option removes operator variation. To compare for your lab, talk to our team.
How are pneumatic grips operated?
They are operated by a hand switch or a foot pedal, both of which trigger the integrated air cylinders. The foot pedal in particular keeps both hands free to load and align the specimen.
This simple control is part of what makes them fast in production. Explore the full grips and fixtures range.
How do I get a price or order pneumatic clamping grips?
You can request a personal quote or order online. Sharing your materials, force range, and test volume lets us recommend the right grip and pressure setup.
For a configuration matched to your testing, request a personal quote.