State-of-the-art Engineering Equipment

SM-102.02 | Torsion Testing Machine

  • Motor-supported torsion tests with different metallic specimens to fracture
  • Generate the twisting moment by means of worm gear motor; adjustable torsion rates, forward and reverse
  • Worm gear motor, speed controlled by frequency converter
  • Specimens: steel, aluminium, brass
  • Measure the test moment by means of strain-gauge measuring shaft
  • Twisting angle measured by incremental encoder
  • Measured values displayed and controlled via touch panel
  • Microprocessor-based measuring technology
  • Software for data acquisition under windows
  • LxWxH: 1120x550x380mm
  • Weight: approx. 95kg
Technical Specification
The torsion test is a destructive testing method that studies the plastic behaviour of materials. In practice, components that are twisted in their application (e.g. screws, shafts, axles, wires and springs) are studied with this test method. The experimental unit allow torsion tests in which specimens are subjected to load until they fracture. The clean layout and simple operation mean the experimental sequence can be observed in all details and phases. The power of the experimental unit allows tests to be performed. In the experiment, metallic specimens are twisted until they are destroyed by typical shear fracture. The twisting moment is applied from a high-ratio reduction gear motor. A frequency converter offers four different drive velocities in forward and reverse rotation. The base plate is torsionally reinforced. A transparent protective cover protects against flying fragments. Some Specimens of different materials and different lengths are included in the scope of delivery. The measuring device can be moved on the rigid frame to adapt to different specimen lengths. The effective twisting moment (test moment) is measured by means of a moment-measuring shaft fitted with strain gauges and can be read directly on a display. The twisting angle is recorded by an incremental encoder and can also be read. The microprocessor-based instrumentation is well protected in the housing. The software, together with the microprocessor, the advantages of using software to help conduct and analyse the experiments. The unit is connected to the PC.
Worm gear motor
  • twisting moment: 200Nm
  • torsional velocities: 50, 100, 200, 500°/min
  • frequency converter with 4 fixed speeds
  • motor output: 0,12kW, forward and reverse
  • diameter: 9mm, length: 100mm
  • 3x steel
  • 3x aluminium
  • 3x brass
  • specimen holder: 2x19mm, hexagonal
  • possible specimen lengths: max. 300mm
Measuring ranges
  • twisting moment: 0…199,9Nm
  • angle of twist: 0…±3200°, resolution: 0,1°