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Pneumatic Direct / Residual Shear Machines

Standard Pneumatic Shear Machine (110V / 60Hz)

Standard Pneumatic Shear Machine (110V / 60Hz)

Model: HM-381
$8000.0000
Price: $8,000.00
Standard Pneumatic Shear Machine (220V / 50Hz)

Standard Pneumatic Shear Machine (220V / 50Hz)

Model: HM-381F
$8000.0000
Price: $8,000.00
Digital Pneumatic Shear Machine (110V / 60Hz)

Digital Pneumatic Shear Machine (110V / 60Hz)

Model: HM-382
$9000.0000
Price: $9,000.00
Digital Pneumatic Shear Machine (220V / 50Hz)

Digital Pneumatic Shear Machine (220V / 50Hz)

Model: HM-382F
$9000.0000
Price: $9,000.00

Gilson Pneumatic Direct & Direct/Residual Shear Machines are manufactured in cooperation with Karol-Warner and provide direct or direct/residual shear values for evaluating the strength and stability of soils. Soil specimens are carefully trimmed into a horizontally divided Direct Shear Box that allows independent movement of the upper and lower halves. A vertical confining load is applied to the soil specimen, and a horizontal shear force is applied to the lower half of the shear box, while the upper half remains stationary. After shear failure has been measured, selected models allow the force direction to be reversed to determine residual shear values.

Gilson Pneumatic Shear Machines use Karol-Warner's proven CONBEL® loading system to apply vertical confining pressures to the specimen. Confining loads are applied pneumatically using a small rolling diaphragm piston for light loads of 4—100lbf (0.018—0.44kN), and a larger diameter piston for loads up to 1,500lbf (6.67kN). This design increases the sensitivity and accuracy of the lighter loads. Loading is controlled using the precision regulator with included calibration chart. Load settings are displayed digitally and are accurate to ±0.25%. Both pneumatic shear machines are completely self-contained, and the need for loading weights is eliminated.

A stepper motor controls strain rates to ±1% from 0.0001—0.3in/min (0.0025—7.62mm/ min) and is easily set with digital thumb wheel controls. Total shear capacity is 1,500lbf (6.67kN). Drainage plates and a water chamber constructed of Teflon-coated, anodized aluminum for corrosion resistance are included. Round or Square Direct Shear Boxes are available in a variety of sizes and are purchased separately. HMA-739 Shear Box Counterbalance offsets top-half weights of Shear Boxes with specimen dimensions up to 2.5in (63.5mm) and is also purchased separately. Inquire for Counterbalances for larger sizes. An optional Rolling Cart for Pneumatic Shear Machines with sturdy all-steel construction offers easy portability in the lab. HM-739 horizontal and vertical Linear Variable Displacement Transducers with 1in (25.4mm) range and 0.0001in (0.0025mm) resolution are available separately to replace analog Dial Indicators if desired.

HM-381 Standard Pneumatic Direct Shear Machine uses an S-Type Load Cell connected to the built-in digital display to indicate shear loads. Consolidation and shear displacement are measured using analog mechanical dial indicators.

HM-382 Digital Pneumatic Direct/Residual Shear Machine uses an S-Type Load Cell to measure shear load, and Linear Variable Displacement Transducers (LVDT’s) to measure horizontal and vertical displacement. A Four-Channel Digital Readout processes and displays measured load and displacement values and transfers data to user’s computer in ASCII format. This model has functionality to perform residual shear testing.

Features:

  • Pneumatic system applies vertical confining pressures – no weights required
  • Load cell with digital readout displays shear load values
  • Total shear capacity of 1,500lbf (6.67kN)
  • Stepper motor controls strain rates to ±1% from 0.0001—0.3in/min (0.0025—7.62mm/ min)
  • HM-382 performs both direct and residual shear tests

Included Items:

  • Standard Pneumatic Shear Machine (115V/60Hz or 230V/50Hz)
    • Analog Dial Indicators for horizontal and vertical displacement measurement
    • S-Type Load Cell with Digital Readout
    • Drainage Plate
    • Water Chamber
    • 15ft Air Supply Tubing

or

  • Digital Pneumatic Shear Machine (115V/60Hz or 230V/50Hz)
    • Linear Variable Displacement Transducers (LVDT’s) for horizontal and vertical displacement measurement
    • S-Type Load Cell
    • HM-419 Four-Channel Digital Readout for LVDT’s and Load Cell
    • Drainage Plate
    • Water Chamber
    • 15ft Air Supply Tubing

Accessories:

Shear Capacity 1,500lbf (6.67kN)
Accuracy ±0.25%
Rate of Load ±1%
Strain Rate 0.0001—0.3in/min (0.0025—7.62mm/ min)
Air Pressure Requires 90psi (6.2bar)
Electrical

HM-381: 110V / 60Hz / 0.5Amps

HM-381F: 220V / 50Hz / 0.3Amps

HM-382: 110V / 60Hz / 0.6Amps

HM-382F: 220V / 50Hz / 0.4Amps

Product Dimensions 36 x 14.5 x 54in (914 x 368 x 137mm), W x D x H
Estimated Shipping Weight 175.0lbs (79.38kg)

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Shear Capacity 1,500lbf (6.67kN)
Accuracy ±0.25%
Rate of Load ±1%
Strain Rate 0.0001—0.3in/min (0.0025—7.62mm/ min)
Air Pressure Requires 90psi (6.2bar)
Electrical

HM-381: 110V / 60Hz / 0.5Amps

HM-381F: 220V / 50Hz / 0.3Amps

HM-382: 110V / 60Hz / 0.6Amps

HM-382F: 220V / 50Hz / 0.4Amps

Product Dimensions 36 x 14.5 x 54in (914 x 368 x 137mm), W x D x H
Estimated Shipping Weight 175.0lbs (79.38kg)
Meets Standard(s):