For high-load fixtures, the priority is using a test frame and mounting interface that are matched to the fixture capacity and keeping the load path axial and well aligned. In most cases, that approach avoids any need for frame modifications, while still protecting the crosshead, columns, and load cell from unintended side loading.

Anchoring becomes a practical consideration when the setup can introduce higher moments or vibration, for example heavy wedge grips, large compression platens or assemblies, bending fixtures with wide spans, or any off-center specimen geometry. A rigid bench or floor foundation, proper leveling, and verified grip alignment help maintain repeatability and reduce the risk of jaw slip or fixture rotation under load.

When planning high-load testing, the recommendation typically depends on:

• Frame style (bench vs. floor standing) and the target force range
• Fixture mass and how far the load line sits from the frame centerline
• Whether the method can create bending or torsion in the grips
• How frequently the fixture will be installed and removed

If you want to confirm the right frame and mounting approach for your high-load fixture and specimen geometry, learn more and request a quote.