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Kappa Multistation

Electromechanical creep testing machine with up to six individually controllable test axes Download
Test load
  • Up to 10 kN/axis
Temperature range
  • -40 to +250°C
Type of test
  • Creep
  • Stress Relax
  • SIM, FNCT
  • Tensile
  • Compression
  • Flexure
Standards
  • ISO 899-1
  • ISO 899-2
  • ASTM D2990
  • ISO 3384-1
  • ISO 16770
  • ISO 527
  • ASTM D638

The compact multi-axis testing system for a wide spectrum of specimens and test types up to 10,000 hours

The Kappa Multistation is a compact and flexible electromechanical creep testing machine with up to six individually controlled load axes. This cost and space efficient testing system is ideal for a wide spectrum of specimen materials, and is considered the specialist for creep tests on plastics and composites. The flexible testing system is ideal for changing test tasks in modern development and testing laboratories, because it can be used for applications at ambient temperature, under low and elevated temperatures as well as in humidity conditions:

  • Creep tests with constant load (tensile, flexure and compression tests)
  • Creep tests up to break
    - Creep rupture
    - Stress rupture
  • Stress relaxation tests with constant elongation
  • Force and strain controlled tests (closed loop) with force, strain and temperature sequences (stepless/in blocks)
  • Tests with flexible loads, e.g. constant force increase rates
  • Time-lapse testing methods, e.g. SIM, TTS, SSM
  • Quasi-static tests can also be performed with this testing machine

Advantages & features

Advantages & features

Specific machine design
Precise control
Consistent temperatures
Non-contact extensometer
Flexible environmental conditions
Intelligent electronics and software

Specific machine design

Cost and space saving design with a robust test frame:

  • Three to six independently controlled load axes in one test frame
  • Central lead screw drive and precision guidance via two steel columns for precise axial loading according to ASTM E292
  • Load string with optimum alignment properties to ASTM E1012
  • Long stroke of 200 mm per load string (more upon request)
  • No mutual influence of the individual load strings at specimen break
  • Precise loading rate with tolerance of ± 0.1 % of the set speed in the measurement range of 1 μm/h to nominal speed, unloaded or under constant load
  • Precision testing machine to DIN EN ISO 7500-1

Precise control

The individually and independently controlled load axes enable force and strain controlled tests in a closed loop.

  • High-resolution force and travel measurement for optimum control properties, especially at very low test speeds
  • Fast and precise force and strain control through high drive control frequency of 1000 Hz
  • Precise loading rate of ± 0.1 % of the set speed in the measurement range of 1 μm/h to nominal speed, unloaded or under constant load
  • Steplessly adjustable force range of 20 N to 10 kN in accuracy class 1 to ISO 7500-1

Consistent temperatures

A common temperature chamber for all load axes ensures precise temperatures:

  • In a temperature range of -40 °C to +250 °C
  • Within a tolerance of ±3 K
  • Cooling with liquid nitrogen (LN2)
  • Self-supporting stainless steel housing with view windows on the front and rear sides
  • Optimal heat distribution via two heating coils and two fans (air flow principle)
  • Equipped with PT100 temperature sensor and Teflon bushings for upper and lower feedthrough of the load strings
  • Interior illumination of temperature chamber for observing test progress

Non-contact extensometer

In accordance with recommendation by ISO 899-1, strain measurement is carried out with non-contact videoXtens, which has no influence on the specimen.

  • Individual high-precision camera for each test axis
  • Quick and precise measurements via fixed positioning of the cameras
  • Strain measurement meets accuracy class 1 (class 0.5 on request)
  • No mechanical influence on specimens, since sensor arms are not required
  • No influence on the temperature, since strain measurement occurs through view window from behind
  • Wide range of specimen marking options
  • Flexible initial gauge lengths and measurement ranges
  • Application within the entire temperature range of the temperature chamber
  • Ideal for tensile, compression, and flexure tests

Flexible environmental conditions

Easy simulation of different environmental conditions with integrated temperature and humidity control:

  • Heating: RT +15°C to +250°C
  • Heating and cooling with LN2: -70°C /-40°C to +250°C
  • Heating and cooling with refrigeration unit: -40°C to +250°C
  • Heating and cooling with controlled humidity environment:
    +20°C to +90°C and 20% to 90% relative humidity
  • Standard-compliant tolerance: Temperature ± 2°C and relative humidity ± 5%

Intelligent electronics and software

  • The testXpert testing software ensures
    - Quick test setup
    - User friendly operation when running the test, and
    - Easy evaluation of the test results
  • Consistent workflow for minimal training effort
  • Any desired strain and force controlled load application
  • Integrated temperature control of the temperature controller
  • Tamper-proof setting of force and temperature through input of set value and continuous recording and documentation even prior to starting the test, during the heating phase
  • Well designed data security concept

Technical overview

Related products and accessories

Downloads

Name Type Size Download
  • Product information: Kappa Multistation PDF 2 MB

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