Touch Screen Frame for Direct Shear Testing

It is equipped with an advanced, electromechanical operating device comprising a stepper motor, a precision-made reduction unit and a final worm screw with reduced play.

These devices are designed to obtain linear, micrometrical movements at a constant speed and, independently from force developed, fast reverse drive. 

Continual drive speed in either direction can be varied via the electronic control unit from 0.00001 to 9 mm/minute.

RS232 Interface for PC. Touch screen.

The number of cycles, forward/reverse speeds and displacement for the measurement of residual shear may also be programmed.

Accommodates shear boxes measuring up to 100 x 100 mm.

ASTM D 3080 BS 1377:7 CEN ISO/TS 17892-10

Specifications:

• Max. force forward/reverse: 5 kN 
• Speed range: 0.00001 - 12 mm/minute 
• Different speeds may be selected for forward and reverse drive
• Speed/load limitations: none 
• Displacement movements: 0,03 pm 
• Rapid approach speed (unloaded): 12 mm/min. 
• Forward/reverse cycles: programmable up to 20 mm
• Number of cycles: no limit to a number which may be programmed 
• Micro switches prevent piston overtravel and dynamometer overload 
• Leverage system allows applied weights to be amplified by 10, 9, 7.92 and 6.125 
• Supports are provided for transducers, dial gauges, and load cells.
  
• Dimensions (without packing): 1016 x 572 x 1548 mm (h)
  
• Weight (without packing): 100 kg

The standard equipment supplied with the shear testing apparatus does not include the following essential components:

Load measurement instruments,

Displacement measurement instruments,

Shear box

Weights.

These instruments are to be ordered separately