Automatic Large Direct Shear System

The VJ Tech Large Shear Box Pro is designed to accommodate specimen sizes up to 300 mm x 300 mm on the 100kN Model, and 300 mm x 400 mm on the 250kN Model (with the possibility of reducing to 300mm x 300mm), making it ideal for testing a wider range of materials including large particle sizes, such as aggregates.

Geotextile membrane mounting points are present to allow the user to perform tests on Geotextile liners. A stepper motor is used in both axes to eliminate the need for oil pumps. Lower capacity load cells can be provided for improved accuracy.

With a built-in datalogger, the Large Shear Box Pro system can log up to 5 analogue sensor inputs and be connected to a PC for data acquisition and data processing via our Clisp Studio software.

  • Accommodates up to 300mm x 300mm size samples (100kN Large Shear Box); 300mm x 400mm (250kN Large Shear Box).
  • Smaller size shear box assemblies to meet your requirements.
  • Mounting points to fix geomembranes
  • 100kN and 250kN Load capacity options available
  • Multiple Units can be controlled from single PC via a LAN or Ethernet/USB hub
  • Built-in logger allowing high speed sensor data conversion (24 bit, up to 5000 samples/s)
  • Optional standalone use via Touchscreen display with data export to PC or a USB Drive
  • Built-in live data tables and graphs for immediate analysis and real-time data visualization
  • Built-in auto protection for mechanical limits & sensor limits
Maximum Sample Size
300 mm x 300mm or 300 mm x 400 mm (smaller sizes shear boxes available) 100
Maximum Vertical Load
100 kN or 250kN (lower capacity load cells available on request)
Maximum Horizontal Shear Force
100 kN or 250kN (lower capacity load cells available on request)
Maximum Horizontal Travel
60 mm or 80mm
Maximum Speed Range
0 - 10.0000 mm/min or 0 - 30.0000 mm/min
Power
220-240VAC 50/60Hz 1ph
Dimensions (W x D x H)
1630 x 650 x 1500 mm or 2110 x 750 x 1630 mm
Weight
775 kg* Weight of 100kN Frame only.
Test Performed
  • Direct Shear
  • Residual Shear
Standards
British
BS1377-7 : 1990 BS1377-2: (Clause 26)
European
BS EN ISO 17892-10 : 2018
American
ASTM D3080-04 ASTM D3080-11
Australian
AS1289.6.2.2 : 1998 Q181C
Item
Description
100 mm square sample box for Large Shear Box

Smaller sample size box that fits inside the 300 mm sample box

150 mm square sample box for Large Shear Box

Smaller sample size box that fits inside the 300 mm sample box

200 mm square sample box for Large Shear Box

Smaller sample size box that fits inside the 300 mm sample box

Geotextile Liner

Geotextile lining clamped into the Shear box

Upgrade Options *
1-D Consolidation tests (Oedometer)
*Upgrade options will require additional hardware. Contact us for more information.
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