Designed to suit ElectroPuls^® test instruments, the 2742-206 mechanical wedge action grips are suitable for tension, compression, torsion and reverse-stress testing on a wide range of specimens and materials. The grips are mechanically operated and the open-fronted design provides easy specimen insertion, positioning, and clamping.

Principle of OperationThe bearing-assisted wedge action on the grips allows for easy and tool-less tightening of the grips. Where it may be necessary, this can also be done using a tommy bar or wrench. In both cases this adjustment is done without altering the vertical position of the faces in relation to the specimen.

This Instron^® design of a moving grip body, not jaw face, makes it possible to pre-select the exact point at which the specimen is gripped, with a consistent gauge length and with no compressive force being applied, which may cause specimen buckling. The open front design allows for quick and easy changing of the jaw faces. The jaw faces are serrated for optimum gripping performance and the serrations are designed to minimize damage to the specimen surface. Pullrods are also available to use for temperature testing.