Biaxial Testing Machine for Biomaterials

The biaxial testing machine was developed for mechanical testing of natural and artificial elastic tissues. The integrated, height-adjustable liquid basin enables testing in tempered liquid mediums.

Key Advantages and Features

Advantages and Features

  • Biaxial testing machine specifically designed for the mechanical characterization of soft natural and artificial materials
  • Four linear drives, controlled independently of each other in terms of position, force, or strain
  • Liquid basin for optimal temperature conditioning of the medium
  • Specimen extension is recorded with a laserXtens/videoXtens extensometer

Strain Measurement

  • Use of the non-contact laserXtens with videoXtens add-on allows for biaxial strain measurement with just one extensometer
  • The laserXtens does not require specimen marking
  • Specimen marking is required with the videoXtens add-on, if the specimen does have a naturally occurring pattern with sufficient contrast
  • Optional strain control including mid-point control via four independent linear drives (dependent on the material), only in combination with 2D dot matrix of the videoXtens add-on

Liquid basin

  • The liquid basin can be lowered for easy specimen gripping
  • The liquid basin can be easily raised for testing
  • Use of transparent plastic breakwater for improved signal quality in air, thereby ensuring that the transition from gaseous to liquid medium is free from optical interference

Specimen grips

  • The following load application options are available:
  • Free-moving hooks attached to thin yarn and linked for flexibility
  • Parallel-closing clamps with pin-plates
  • Parallel-closing clamps with pyramid jaws

Technical Overview


50, 100 or 200


Load frame dimensions










Working height

Adjustable between 950 and 1050 mm


Speed, max.



Product Information Available for Download

RWTH Aachen University Develops and Tests Biohybrid Implants with ZwickRoell Biaxial Testing Machine

With over 45,000 students, 564 professors and 260 institutes, RWTH Aachen University is the largest technical university in Germany with the claim to be one of the best technical universities in the world.
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