Logo
 
 
 
Mechanical specimen grips for tensile tests
Screw type wedge action grip 100 kN
Mechanical specimen grips for tensile tests
Wedge grip 50 kN
Mechanical specimen grips for tensile tests
Test system tensile test on screws: specimen holder in wedge type grip
Screw type wedge action grip 10 kN
Screw type wedge action grip 250 kN

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.

Force-fit grips:
Vice grips
Pincer grips
Wedge type grip
Screw type wedge action grips

 

External tensioning

Self-tensioning

Self-tensioning

External tensioning

+ Symmetrical and asymmetrical clamping

- Only symmetrical clamping possible

- Only symmetrical clamping possible

+ Symmetrical and asymmetrical clamping

+ Light

+ Light

- Heavy

- Heavy

+ Adjustable clamping force 

- Clamping and pre-clamping force cannot be adjusted

Clamping and pre-clamping force cannot be adjusted

Adjustable clamping force (Reproduceable clamping forces can be reached with a torque wrench) 

- For small forces 

 

+ Up to high forces

+ Up to high forces

- It is difficult to reach reproducable clamping forces

 

- Spring back after brittle fracture

+ Frictional fixation after fracture

- Clamping force decreases during testing

• Clamping force increases during testing

• Clamping force increases during testing

• Clamping force increases during testing

- For polymers (thermoplastic, duroplastic), foils, food,...

- Up to 20 kN

- For elastomers, plastics, textiles

- Up to 20 kN

- For metals

- Up to 600 kN

- For metals

- Up to 250 kN

 

Form-fit grips:

Specimen holder for shoulder, screw and thread head testing

Application: Clamping of tensile specimens that cannot be gripped directly with clamping jaws due to their size, geometry or structure

 

For example suitable for:

  • Testing of thread specimen
  • Testing of shoulder specimen
  • Testing of screws
  • Testing of tubes
  • Testing of tapes
 

Safe test results:
certifications