These gripping solutions are designed to control slippage on difficult specimens by matching the clamping mechanism to the material and geometry. For low-friction or delicate samples, several options use self-energizing grip action so holding force increases as tensile load rises, helping maintain a stable hold without over-crushing the specimen.

For thin films and thin laminate strips, eccentric roller grips and self-tightening grips are commonly used because they progressively increase grip force as the specimen is loaded, which helps prevent pullout as the sample elongates or necks.

For wires, strands, and cables, snubbing (capstan-style) grips reduce slip risk by wrapping the specimen around a curved surface to build friction and spread the load more evenly. Final selection typically depends on:

  • Specimen form (flat strip vs round wire, single strand vs bundled)
  • Surface condition (smooth, coated, braided)
  • Force level and whether the material is easily damaged at the jaws

If you want to confirm the best grip style and jaw interface for your specific film, wire, cable, or laminate, use the product page to learn more and share your specimen details to request a quote.