Traction testing wedge grip

Mechanical specimen grips Gripping, clamping, holding - from rough to fragile Hegewald & Peschke offers a wide range of mechanical grips for tensile tests. This includes both from-fit and force-fit grips, each of which can be used for a wide range of materials, specimen shapes and temperature ranges. Vice grips External tensioning + Symmetrical and asymmetrical clamping + Light + Adjustable clamping force - For small forces - It is difficult to reach reproducable clamping forces - Clamping force decreases during testing - For polymers (thermoplastic, duroplastic), foils, food,... - Up to 20 kN Pincer grips Self-tensioning - Only symmetrical clamping possible + Light - Clamping and pre-clamping force cannot be adjusted • Clamping force increases during testing - For elastomers, plastics, textiles - Up to 20 kN Wedge type grip Self-tensioning - Only symmetrical clamping possible - Heavy - Clamping and pre-clamping force cannot be adjusted + Up to high forces - Spring back after brittle fracture • Clamping force increases during testing - For metals - Up to 600 kN Screw type wedge action grips External tensioning + Symmetrical and asymmetrical clamping - Heavy + Adjustable clamping force (Reproduceable clamping forces can be reached with a torque wrench) + Up to high forces + Frictional fixation after fracture • Clamping force increases during testing - For metals - Up to 250 kN