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Lab Vane Shear Test System

What is the Lab Vane Shear test?

Lab Vane Shear Data Sheet
Sample Geotechnical Report

Lab Vane Shear System

The Lab Vane Shear System is used to quickly calculate peak and/or residual undrained shear strength on intact or remolded specimens in the lab. Once the set-up is in place and the test conditions are selected, the Lab Vane Shear System will run the entire test from start to finish. The Lab Vane Shear utilizes a precision micro-stepper motor to apply the torque. An embedded controller with dedicated CPU allows for on-board data acquisition and closed loop control based on direct feedback from an advanced torque sensor.

Applicable Test Standards

  • ASTM D4648


  • Determine both peak and residual shear strength
  • Highly portable and lightweight design
  • Fully automated via computer or standalone capability for control and data collection
  • Micro-stepper, electronic motor system offers highly precise loading
  • Closed loop control based on direct feedback from an advanced torque sensor
  • Immediately produce reports according to test standards
  • Front panel display and keypad for observation and control of the test
  • Geo-Net compatibility allows access and control over a computer network


  • Torque Capacity: 1 Nm (9 lbf-in) standard; up to 3 Nm customizable
  • Measurement Accuracy: 61 µNm (0.0005 lbf-in)
  • Rotational Speed: 0 to 8 rad/sec
  • Control: Torque or Rotation
  • Vane Blades: 2 short and 2 long (custom lengths available)
    • H:D of 1:1 – 12.7 x 12.7 mm (0.5 x 0.5 in)
    • H:D of 2:1 – 12.7 x 25.4 mm (0.5 x 1.0 in)
  • Dimensions: 394 x 400 x 394 mm (15.5 x 15.75 x 15.5 in)
  • Weight: 10 kg (22 lbs)

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