Direct / Residual Shear Test Machine - Automatic

Automatic Direct Shear Test Machine is motorized with servo motor and measuring sensors are electronically connected to a digital readout unit to get accurate readings. Supplied with carriage assembly load hanger integral 9:1, 10:1 and 11:1 lever loading device as standard. The loading arm which is used to apply the vertical load on the shear box assembly can be set up to 50 kg weight. The total load on the specimen can reach up to 5 kN.
The shear machine is driven by high resolution servomotor and gear box assembly. Speed range is fully stepless variable over the range 0.00001 to 9.9999 mm/min. 5 kN load cell is used for load measurement. 10 ° 0.002 mm and 25 ° 0.001 mm sensitivity displacement sensors are used for vertical and horizontal displacement measurements respectively. Displacement limits are controlled by limit switches. Maximum vertical load is 5000 N from 0 to 500 N, applying using 10:1 beam loading device.

Standards Compliance :

• Complied as per ASTM D3080, BS 1377-7, AASHTO T236, CEN ISO/TS 17892-10

Application :

• The test measures the consolidated drained shear strength of soil material in direct shear.

Capacity :

• The machine shear box tests on 60 mm and 100 mm square, °60 mm round, °100 mm round, °2.5" round samples.
• All shear box assemblies can contain water for saturation and drainage.
• The Assemblies consist of a shear box with a carriage, upper and lower half, porous plates, grid, plane grid, 2 pieces Perforated Grids and
  software Direct Shear Test Machine Supplied with 50 kg Slotted Weight Set.

Dimensions (cm) :

• 65°155°135

Weight (kg) :

• 120

Speed Range (mm/min) :

• 0.00001 to 9.9999

Maximum Shear Force (kN) :

• 5

Power Supply :

• 220 V, 50–60 Hz, 1 ph

Optional Accessories :

• Shear Box Assembly, Specimen cutter and Extrusion Dolly should be ordered separately depending on the sample size.

• Touch Screen Graphic Display Automatic Control Unit
• Real time Load vs. Displacement or Stress vs. Displacement graphs can be seen on the Graphic Display. The Software calculates both the maximum and residual shear stress.
• After minimum value is reached, the software calculates the cohesion value –c– and shear resistance angle ––° by using the best straight line fit.