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90° Capstan Grip

Grip employing deflection Download
  • Metals
  • Plastics
  • Textiles
Test load
  • 1 kN
Specimen shape
  • Yarn
  • Band up to 5 mm width
  • Wire
  • Spinning yarn and continuous filaments
  • Very fine yarns
Type of test
  • Tensile

90° deflection

The pneumatic grip for yarn and tire cords is a single actuator grip used on filamentary tensile specimens.

The force reduction curve employing 90° deflection carefully reduces the tensile force on the clamping position.

Advantages & features

Advantages & features

Function description

Function description

The load-reduction curve with 90° deflection gently reduces the tensile force before the clamping point. Pneumatic clamping ensures constant gripping force with easy, reproducible adjustment. The specimen is held securely and jaw breaks are avoided.


  • Secure holding of the specimen ensures reliable test results, even with specimens prone to shrinkage.
  • High specimen throughput thanks to quick specimen insertion and centering via guide groove.
  • The load-reduction curve ensures gentle gripping with no jaw breaks.
  • The jaws can be changed easily for different applications.
  • Interchangeable load reduction curves enable optimum adaptation of the specimen grips to accommodate different specimen materials.
  • In addition, the specimen grip can also be used vertically without load-reduction curve.
  • Two specimen grips in one. Depending on the specimens, the specimen grips can be used with the load reduction curve as well as without it. As a result, optimal gripping is ensured even with alternating specimens.

Technical overview

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Name Type Size Download
  • Product information: Pneumatic grips with 90° deflector, Fmax 1 kN PDF 219 KB

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