Large Electromechanical Shear Testing Machine – SHEARMATIC 300 EmS

The Wykeham Farrance Large Electromechanical Shear Testing Machine – SHEARMATIC 300 EmS allows laboratories to perform direct/residual shear testing on soil samples 300 x 300 mm square.

Description

The Wykeham Farrance Large Electromechanical Shear Testing Machine – SHEARMATIC 300 EmS combines advanced servo-actuation with full automation to perform direct and residual shear tests on large soil samples or other materials up to 300 x 300 mm. Its large capacity is designed to accommodate specimens with coarse particles up to 20 mm in diameter.

Inserts for testing smaller sample sizes are also available (see accessories).

Thanks to the new Electromechanical Servoactuation (EmS) technology, the system requires no hydraulic motor with oil pump, eliminating the need for oil maintenance and ensuring a cleaner and more efficient solution.

Fully automatic
The sample is consolidated via a closed loop electromechanical system for the automatic programmable application of the vertical load. The horizontal displacement is driven by an high resolution stepper motor.

Flexible control solutions
The control of the unit, including full test execution, can be achieved in two alternative ways:

  • Remote control from PC*: when remote control mode is used, the PC software, SOILMASTER T&A, serves as the user interface and manages the main functions, as well as channel calibration through linear, polynomial, and multi-coefficient curves.
  • Active control from the user interface: full test execution is possible without the need for a PC. The user interface is based on a large 6″ color touchscreen display, allowing the user to start, pause, and stop tests, select the data recording mode, view readings during test execution, and perform transducer calibration. The unit is supplied with a USB flash drive for virtually unlimited storage and TXT-format data output.

*Note: an optional all-in-one PC assembly, mounted on a support arm, is also available. It offers an ergonomic and space-saving solution for a compact and streamlined test execution.

Clarity in results
Results are then processed using SOILMASTER P&R Processing and Reporting, written by experts around international standards allowing you to concentrate on analyzing your materials; not on programing your testing machine.

 

Large Electromechanical Shear Testing Machine – SHEARMATIC 300 EmS

  • Versatile applications – ideal for testing shale, industrial slag, brick rubble and colliery spoils.
  • Single machine model featuring a multi-voltage and multi frequency power supply.
  • Configurable shear box assembly, allowing customers to choose between a coated steel shear box for standard test application and a stainless steel shear box, ideal for testing highly corrosive materials
  • High-performance – up to 100 kN vertical and horizontal loadvariable speed from 0.00001 to 15.00000 mm/min, and adjustable number of cycles from 1 to 50.
  • Precision control – fast, smooth, and accurate loading with integrated PID closed-loop control. Load is measured directly via a load cell mounted on the loading tip.
  • Optimized force stransmission – straight connection between shear box, drive unit, and load cell ensures axial transmission of the horizontal force along the shearing plane, avoiding the limitations of the classic “swan neck” design.
  • Flexible control options – operate via the local 6″ high-resolution touchscreen or remotely through the SOILMASTER T&A PC software.
  • Automatic test management from consolidation to failure: the operator is only requested to remove the clamping screws of the shear box
  • Environmentally friendly and quiet – powered by Electromechanical Servoactuation (EmS), with no hydraulic motors with oil pumps, no dead weights and no bulky compressors, delivering a cleaner solution with minimal maintenance requirements and significantly reduced noise levels.
  • Easy load cells replacement – quick system for switching between load cells of different capacities
  • Pivoting crosshead – provides free space for convenient sample preparation

Specifications

  • Maximum vertical force: 100kN
  • Maximum horizontal: 100kN
  • Load control: Constant Normal Load (CNL)/Constant Normal Stiffness (CNS)
  • Vertical displacement transducer: 50mm
  • Horizontal displacement transducer: 100mm
  • Infinitely variable speed from 0.00001 to 15.00000 mm/min
  • Sample size: up to 300 mm. Can be reduced to 150 mm using insert (see accessories)
  • Sample height: 150 mm
  • Easy load cell replacement system for quick switching between load cells of different capacity
  • Pivoting Crosshead to provide free space for sample preparation
  • Weight: 700 kg approx.
  • Overall dimensions (wxdxh): 1420 x 750 x 15290 mm
  • Multivoltage – Multifrequency power supply: 115-230V, 50-60 Hz, 1Ph
  • Power consumption: 200W

 

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