Electromechanical Creep Testing Machines

Electromechanical creep testing machines
Kappa SS

Kappa SS

The Kappa SS creep-testing machine is equipped with a central lead screw and is suitable for creep tests and advanced creep tests requiring maximum precision in force control.

  • Load frame with single lead screw drive and precision guidance provided via 4 steel columns, giving precise axial loading and maximum durability
  • Load string with optimum alignment properties in accordance with ASTM E292
  • High-resolution force and travel measurement for optimum control properties, especially at very low test speeds
  • Constant moving crosshead speed via precision central ball screw
  • Optional digital closed-loop force and strain control
  • Creep tests and stress relaxation tests; user-programmed load-cycles
  • Large range of machine accessories for flexible application options, complemented by intelligent electronics and software
+FO_100 kN

Kappa SS - CF

The Kappa SS - CF creep testing machine is equipped with a central lead screw and is suitable for creep tests and strain-controlled creep fatigue (CF) tests requiring maximum precision in strain control. Together with the non-contact videoXtens HT/TZ extensometer, maximum flexibility and outstanding control characteristics are combined in an innovative testing machine.

  • Applications: creep tests, creep fatigue tests, creep fatigue interaction and relaxation tests; user-programmed load cycles
  • High precision gears and servo motor placed centrically in the load line, moving up and down with the moving crosshead
  • In comparison to standard electromechanical creep testing machines, the Kappa SS - CF creep testing machine stands out because of its excellent linearity force-deflection curve with backlash-free zero crossing 
  • Virtually play-free drive is patent pending: special load train bearing ensures optimum alignment properties in accordance with ISO 23788 and NADCAP requirements
  • Load frame with single lead screw drive and precision guidance provided via 4 steel columns, giving precise axial loading and maximum durability
  • High-resolution force and travel measurement for optimum control properties, especially at very low test speeds
  • Constant moving crosshead speed via precision central ball screw
  • Optional digital closed loop control for force and strain
  • The large range of machine accessories offers flexible application options, which are complemented by testControl intelligent electronics and testXpert software.
Kappa DS

Kappa DS

The Kappa DS creep testing machine is equipped with a double lead screw and is designed for creep tests and advanced creep tests. High flexibility is combined with maximum precision in a single testing machine.

  • Load frame with double lead screw drive and precision guidance provided via 4 steel columns, giving precise axial loading and maximum durability
  • Large crosshead travel allows machine to accommodate a wide range of specimens and tests
  • Load string with optimum alignment properties in accordance with ASTM E292
  • High-resolution force and travel measurement for optimum control properties, especially at very low test speeds
  • Constant moving crosshead speed of +/-0.1% of specified speed in a measurement range from 1 µm/h to 100 mm/min
  • Selectable digital closed loop force and strain control Creep tests and stress relaxation tests; user-programmed load cycles
  • Large range of machine accessories for flexible application options, complemented by intelligent electronics and software

Creep and fatigue testing at high temperature

Increases in performance in high-performance applications can often only be achieved through increased thermal and mechanical loads on the components. However, in the case of many materials this requirements specification leads to failure (through creep and/or fatigue). For example, many metals exhibit structural changes under load, starting at 30 to 40% of their melting temperature, which lead to irreversible plastic deformation. The Kappa creep test machines from ZwickRoell are optimally suited to determine the maximum service life of components under this type of load.
Kappa Overview
Top