Bolt Extensometers for Proof Load Testing – Model 3565

TPP (Twin-PurPose)

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Special equipment TPP (Twin-PurPose) for the RUMUL resonant fatigue testing machines.

An idea more than forty years old, to be able to carry out static tests on resonant fatigue testing machines in the fastest possible working steps, was realized with a new, innovative special design on the 100-fold proven testing machine RUMUL TESTRONIC. Particularly attractive is the possibility of directly combining dynamic fatigue tests with static tests. The precracking of fracture mechanics specimens and the subsequent breaking up of the specimens without having to change to another testing machine is an efficient and economical application of this special TPP device.