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CRUMPLEFLEX Fabric Flexing Tester

  • Introduction

    Compliant with EN ISO 7854 Method C

    The ThermCon CRUMPLEFLEX Fabric Flexing Tester is designed to determine the flex resistance of coated fabrics exposed to repeated mechanical deformation.

    Its robust mechanical construction, synchronized motion system and Siemens SIMATIC touch-screen controller provide accurate, repeatable and reliable test results for research laboratories and quality control environments.

    Accurate and Repeatable Flex Resistance Testing

    CRUMPLEFLEX simulates the repeated flexing, compression and rotational movements that coated and flexible materials may experience during service.

    The instrument allows four specimens to be tested simultaneously. Once the programmed number of cycles has been completed, the test stops automatically and the specimens can be evaluated for flex resistance.

  • Key Features

    • Compliant with EN ISO 7854 Method C
    • Four specimens tested simultaneously
    • Fully automatic operation
    • Programmable cycle counter
    • Automatic stop function
    • Siemens SIMATIC HMI
    • Real-time test monitoring
    • Safety interlock system
    • Robust industrial construction
    • High repeatability
    • Easy maintenance

    Designed for continuous laboratory operation

  • Test Principle

    The specimen is clamped between two opposing flanged discs.

    During the test, the moving disc performs a compression movement while simultaneously rotating through 90°. This combined movement simulates the repeated flexing conditions experienced by the material during service.

    When the programmed number of cycles has been reached, the machine stops automatically. The specimen can then be evaluated for cracking, coating separation, deformation or other visible damage.

  • Applications

    CRUMPLEFLEX is suitable for testing a wide range of flexible and coated materials:

    • Military fabrics
    • Protective clothing
    • Automotive upholstery
    • Outdoor textiles
    • Artificial leather
    • Industrial fabrics
    • Coated fabrics
    • Technical textiles
    • Quality control laboratories

  • Technical Specifications

    Specimen System

    • Number of specimens: 4 simultaneously
    • Cylindrical specimen holder
    • Opposing flanged disc mechanism


    Disc Dimensions

    • Maximum disc opening: 180 mm (-0 / +3 mm)
    • Disc diameter: 63.5 ±1 mm
    • Disc face width: 15 ±1 mm


    Compression Motion

    • Frequency: 2.53 ±0.07 Hz
    • Stroke length: 70 ±4 mm
    • Compression rate: 152 ±4 strokes/min


    Rotation and Flexing Motion

    • Rotation angle: 90° ±2°
    • Rotation speed: 200 cycles/min
    • Flexing frequency: 3.33 ±0.17 Hz


    Motion and Counter System

    The synchronized compression and rotation mechanism delivers stable and repeatable testing performance throughout the complete test cycle.


    Counter Features

    • Programmable cycle count
    • 1-cycle resolution
    • Automatic stop
    • Digital cycle display
    • Real-time monitoring


    Siemens SIMATIC HMI Control System

    The integrated Siemens SIMATIC HMI provides intuitive operation and complete control of the testing process.


    HMI Features

    • 7-inch touch screen
    • Easy parameter setting
    • Real-time monitoring
    • Cycle counter
    • User-friendly interface
    • Machine status display
    • Alarm messages
    • Automatic test control


    Safety Features

    • Transparent safety cover
    • Safety interlock system
    • Automatic stop when the cover is opened


    Electrical Specifications

    • Supply voltage: 220 VAC ±10%
    • Frequency: 50 Hz ±5%

  • Standard Accessories

    Every CRUMPLEFLEX system is supplied with:

    • 24 specimen clamps
    • User manual
    • Maintenance manual
    • Calibration certificate
    • Error code documentation, if applicable
    • One-day operator training

  • Video