Simple Shear Systems

The precise electromechanical drive, with its high resolution and 1 ms closed loop control rate, generates closed-loop strain and stress controlled static axial load and strain, as well as stress controlled shear forces.

The sample is mounted in a reinforced rubber-membrane connected to a tilting free parallel guided lower shear frame and a vertical parallel-guided load piston (also free from tilting).

Advanced fully automatic simple-shear apparatus for saturated and unsaturated tests for static shear loads up to 10 kN.





  • For simple shear tests under saturated and unsaturated conditions
  • Constant volume conditions (K0-Conditions)
  • Load independent shear rates (shear stress optional)
  • Highly precise and stiff load transducer for normal and shear force
  • Highly accurate displacement transducers for settlement and displacement (strain)
  • Material of specimen adapter:
    • stainless steel standard or customized specimen sizes are available
    • Two pore-water ports are situated at the top and bottom sample adapters for saturated conditions
  • Applicable for automatic test control and monitoring of parameters and evaluation with shear software modules

Circular simple shear boxes:

  • Ø 50.0 mm, 20 cm2
  • Ø 60 mm, 28.27 cm2
  • Ø 63.0 mm, 31.2 cm2
  • Ø 66.8 mm, 35 cm2
  • Ø 71.4 mm, 40 cm2
  • Ø 79 mm, 50 cm2
  • Ø 94.4 mm, 70 cm2

Option: Low cyclic version

Normal force (standard)

5 or 10 kN

Max. shear force (standard)

5 kN, optional 2 or 10 kN 

Max. shear displacement

20 mm

Spindle lift and vertical clearance 

220 mm 

Axial displacement transducer

10 mm 


25 / 0.001 mm

Accuracy class



0.00001 kN

Shear rate

30 – 0.000001 mm/min

  • Not available
  • Not available
  • ASTM D-3080
  • Standard Test Method for Direct Shear Test of Soils Under Consolidated Drained Conditions

  • ASTM D-6528
  • Standard Test Method for: Consolidated Undrained Direct Simple Shear Testing of Cohesive Soils.

  • CEN ISO/TS 17892-10
  • Geotechnical investigation and testing -- Laboratory testing of soil -- Part 10: Direct shear tests

  • JGS 0560
  • Method for Consolidated Constant Volume Direct Box Shear Test on Soils

  • JGS 0561
  • Method for Consolidated Constant Pressure Direct Box Shear Test on Soils

  • Detailed information will follow soon
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