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Self-tightening grips type wedge, easy to use and applicable to perform tensile tests on small samples of rigid materials (Metals, Plastics, Composites …)
Wedge Grips feature easy specimen loading, self alignment and centerline sample positioning. Wedge grip force increases as pull load increases, so these grips are ideal when high clamp load is needed – such as gripping difficult to hold materials or elastic materials that contract as they are pulled.
Wedge jaws offer a high mechanical advantage by the way they tighten. As the grip body is drawn up, the inclined sides push against the matching side of the faces which move laterally against the specimen. The grip faces are spring loaded on the top, against the body. The open front allows faces to be interchanged as well as easy specimen loading.