Secant Stiffiness / Yerzley Oscillograph / Schob Hardness Tester

Secant Stiffness Testing Machine, model PRT-15

Computerized Secant Stiffness Testing Machine, cap. 500kN, suitable to conduct stiffness test, as per RDSO specifications on CGRS Plates. The machine is supplied along with Data Acquisition System & Sensors for force & displacement/distortion. During test real time values of load & distortion are visible on the Computer/Laptop through tailor mode Software supplied along with the machine. Initial pre-loading is done manually, not through Software. The Software calculates the stiffness after the completion of test. The machine operates on 400/440Votls, 3 phase A.C. supply.

Accessory

Compression Dynamometer 500kN capacity with Calibration Certificate for on Site Calibration.

Yerzley Oscillograph, as per ASTM D 945, model PRT-19

The Precision Yerzley Oscillograph consists of a freely supported horizontal beam, a specimen holder which can be suspended from a knife edge on one side of the beam, dead weights to apply compression loads on the test specimen, an arrangement to restrain the test specimen from moving up under the action of applied loads & a recording drum arrangement to record the amplitude of oscillations of the end of the beam. The equipment operates on 220/230VAC.

Schob Pendulum Test Resilience Tester, model PRT-17

This is a manually operated Tester, as per DIN 53512 & ISO 4662. The equipment comprises of a pendulum type oscillating device. It has a base frame with anvil, test piece holder & the indicator graduated 0-100%. The drop angle is 90° and the capacity of the machine is 0.5Joules.