The HA range are classical servo-hydraulic testing machines, with a testing actuator mounted in the lower crosshead. They are particularly suitable for determining material properties under cyclic loading e.g. fracture mechanics, LCF (Low Cycle Fatigue).
HB servo-hydraulic testing machines have the testing actuator mounted on the upper crosshead, making them extremely versatile in use, especially in conjunction with the optional T-slot platform, which enables flexure and component testing in addition to standard tests.
The compact HC table-top testing machines are great space-savers. With the testing actuator mounted in the upper crosshead and the series-standard T-slot platform, flexure and component tests can be performed in addition to standard tests.
The fracture behavior of many materials is known to be dependent on loading speed (among other things). Numerical calculation of crash safety requires appropriate data and constitutive equations. Zwick's HTM servo-hydraulic high-speed testing machines allow strain rate dependent characteristic values to be determined over a wide speed range.
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