The pendulum Impact Tester, Model IT-30 is designed for conducting Izod, Charpy test.
The pendulum is mounted on antifriction bearings. It has two starting positions, the upper one for Charpy the lower one for Izod testing. On release, the pendulum swings down to break the specimen & the energy absorbed in doing so is measured as the difference between the height of drop before rupture of the test specimen and is read from the maximum pointer position on the dial scale.
This machine is geometrically checked in the works to the more stringent requirements of the American standard.
The accuracy of the machine is then verified by PROOF TEST by testing standard test specimens supplied by the NIST, USA. Two sets (Low & high energy-1 Set (4 Nos.) each.) must agree with the normal values within certain tolerance specified.
In Auto Impact Tester, pendulum will lift, specimen will get loaded and pendulum will release automatically. Once specimen breaks, result will display on digital panel, and auto brakes will apply immediately.
The pendulum is mounted on antifriction bearings. It has two starting positions, the upper one for Charpy and the lower one for Izod testing.