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Soil mechanics

Direct and residual shear testing machine AUTOSHEAR

ASTM D3080 | AASHTO T236 | BS 1377:7 | CEN-ISO/TS 17892-10 | NF P94-071

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Main Features

  • User interface 6" touch screen colour display for numerical and graphical plotting of the readings
  • Maximum horizontal force: 5 kN
  • Maximum vertical force: 5 kN, using the 10:1 cantilever device
  • Three analogue channels. one for load cell and two for displacement transducers
  • Effective channel resolution: 131,000 points
  • Infinitely variavle speed from 0.00001 to 15.0000 mm/min
  • High stiffness load chain shear box - driving head - load cell
  • Compatible with shear boxes up to 100 mm diameter or square
  • USB pen drive for unlimited storage capacity and TXT format data output
  • Optional PC control via LAN port and dedicated software
  • Sturdy shear box techno-polymeric carriage untouchable by corrosion
  • Adjustable speed and travel (forward and reverse) for residual shear test
  • Number of cycles adjustable from 1 to 99
  • Specific and independent data recording for consolidation and failure stages
  • tecnical specifications
    • Scroll the table
      • Maximum shear force: 5000 N
      • Maximum vertical load: 500 N or 5000 N using 10:1 cantilever loading device supplied with the machine
      • Maximum horizontal travel: 23 mm
      • Test speed: from 0.00001 to 15.00000 mm/min
      • Maximum number of cycles: 99
      • Sample type and size: up to 100 mm square or round
      • Overall dimensions: 1040 x 530 x 1200 mm (l x d x h)
      • Weight approx.: 60 kg
      • Multivoltage: Multifrequency power supply 230 V, 50 Hz or 110 V, 60 Hz
  • ordering info
    • 27-WF21A60 
      Autoshear, direct and residual shear testing machine with automatic built-in data acquisition
      100-220 V, 50-60 Hz, 1 ph
  • accessories
    • Electronic measuring device

      Load cell
      27-WF0377/ST
      Load cell 5 kN capacity, with adapters


      Displacement transducers
      30-WF6207
      Linear potentiometric transducer, 10 mm travel, for vertical deformation, complete with mounting block

      30-WF6208
      Linear potentiometric transducer, 25 mm travel, for horizontal deformation, complete with mounting block


      Shear box: loading pad, base plate, 2 plain grid plates, 2 perforated grid plates and 2 sintered bronze porous stone
      Code 27- WF0215/B WF0216/B WF0217/B WF0218/B WF0219/B WF0222/B
      Shape Square Square Round Round Round Round
      Sample size [mm] 60 100 50 60 63.5 100
      Sample cutter 27- WF0215/B7 WF0216/B7 WF0217/B7 WF0218/B7 WF0219/B7 WF0222/B7
      Extrusion dolly 27- WF0215/8 WF0216/8 WF0217/8 WF0218/8 WF0219/8 WF0222/8


      Weight set
      27-WF0230/C3
      Weight set 37.5 kg comprising: 2x0.25, 2x0.5, 2x1, 3x2, 3x4 and 2x8 kg weights 

      Additional weight set
      27-WF0230/C4
      Weight set 34 kg comprising: 2x1, 1x2 and 3x10 kg weights


      Data process template
      30-WF6016/T2
      Direct and residual shear Geo-Analysis template conforming to BS 1377:7

      30-WF6016/T9
      Direct and residual shear Geo-Analysis template conforming to ASTM D3080
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