Planar Biaxial Test Machine for cruciform metals174 Series Electromechanical Planar Biaxial test systems provides researchers with new abilities to characterize and evaluate quasi-static performance of high strength materials under planar biaxial loading conditions. You can perform both static and fatigue tests up to 2 Hz with the 174 series test system. The actuator provides accurate test results because of the test control quality due to its backlash free operation.

Each of our systems are provided as a complete test solution and includes self-reacting load frames in capacities ranging from 50 to 200 kN (11,250 lbf to 45,000 lbf). Each actuator features precision position measurement with speeds ranging from 5µm/min to 500 mm per min (20 ipm).

Transducers include load and position encoder based measurements with both contacting and non contacting strain based extensometers available. The video extensometer is based on digital image correlation (DIC) technology.

This system features high precision load and optional strain control on two synchronized axes which makes it possible to create controlled complex biaxial stress and strain test states. The system is programmed for tensile and tension-tension fatigue tests on flat test samples. Our four channel controller controls all four actuators independently to move in opposite directions on two axis perpendicular to each other.

The actuators and load cells are specifically matched to your load and speed application requirements. Each actuator includes high precision noise free digital position encoders. Our 24 bit controller increases resolution for analog transducers such as LVDT, load cell, extensometers. Our controllers set a new performance standard for low noise floor, delivering better than 0.02% on raw data; even better than that when used with the unit's digital filters.


  • Capable of tension, compression, shear, stress relaxation, and creep tests
  • Test space designed for customer samples and applications
  • Four channels of independent load, position and strain control
  • Adjustable data acquisition rates up to 5 kHz maximum
  • Each actuator features digital position encoder with sub micron resolution
  • Constant speed, constant load rate, position and load control


  • Actuator stroke 150 mm (6 in)
  • Strain measurement and control
  • Choice of load cells – selected to match sample and application requirements
  • Integrated standalone video extensometer with DIC technology
  • Accessories to match application - grips, fixtures, chambers


Model Max Force Capacity Max Stroke/Actuator Max Speed
174L50 50 kN (11,250 lbf) 150 mm (6 in) 500 mm/m (20 ipm)
174L100 100 kN (22,500 lbf) 150 mm (6 in) 250 mm/m (10 ipm)
174L150 150 kN (33,750 lbf) 150 mm (6 in) 250 mm/m (10 ipm)
174L200 200 kN (45,000 lbf) 150 mm (6 in) 250 mm/m (10 ipm)


  • High strength materials such as steel, aluminum, laminated composites, and polymer reinforced composites
  • Test types including fatigue, static and fracture crack growth


Each system includes sample grips or test fixtures, strain measurement and strain control options, chambers and bathes to produce a controlled test media. We are experts at supplying turnkey systems with integrated fixturing and strain measurement instrumentation.

  • Environmental Chambers & Solutions
    • Contacting
    • Non contacting video
  • Integrated standalone video extensometer with DIC technology
  • Grips and Fixtures compatible with environments