Grip capacity ratings are driven by the forces you plan to apply and the clamping method, not simply by whether the test frame is hydraulic or electromechanical. In practice, you can often use the same capacity-rated grips across frame types as long as the grips are rated for the required load and are compatible with the machine’s mounting and alignment scheme.

Hydraulic frames are frequently selected for higher-force work, and they are also commonly paired with hydraulic-actuated gripping (such as wedge or side-action styles) to deliver consistent clamping and safer handling at elevated loads. That is why hydraulic systems often end up specified with higher-capacity grip packages, even when the underlying “capacity rating” concept is the same.

When selecting grip capacity, focus on the full setup, including:

• Maximum test force for your method and specimen
• Specimen size, shape, and surface condition (risk of slip or crushing)
• Grip style and jaw faces needed for repeatable clamping
• Machine interface and adapters (mounting geometry and alignment)

If you want to confirm the right grip capacity and interface for your hydraulic or electromechanical frame, review the options on learn more and send your application details to request a quote.