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

Features

• 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

Specifications

• 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)