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    ASTM-D813 AC220V De Mattia Rubber Flexing Fatigue Testing ...
    The ASTM D813 Upper Flexing Tester (typically a DeMattia Flex Cracking Tester) measures the crack growth resistance of vulcanized rubber and synthetic elastomers subjected to repeated bending or flexing. It is widely used for quality control in footwear manufacturing to evaluate the fatigue durability of materials like shoe uppers. 
    This video demonstrates the operation of a DeMattia flex cracking tester:
    Related video thumbnail
    02:55
    Demattia Flex Cracking Tester - GenFlex - NextGen Material ...
    Quality Control
    YouTube• Nov 2, 2022
    Key Features and Specifications 
    • Test Method: Complies with ASTM D813 for measuring crack growth, which is particularly useful for synthetic rubber compounds.
    • Operation: The tester operates by fixing test specimens into clamps that perform a reciprocating, bending motion.
    • Speed: Commonly runs at
      300
      ±10
       cycles per minute (cpm) or adjustable ranges.
    • Stroke: Typically features a reciprocating stroke of
      57
      ±0.5
       mm.
    • Capacity: Often designed to hold and test multiple specimens (e.g., up to 16) simultaneously.
    • Specimen Preparation: Samples are pre-pierced to initiate cracking, with specialized piercing tools used for consistency. 
    Common Applications 
    • Footwear Industry: Testing upper materials, leather, and synthetic substitutes for flex durability.
    • Rubber Manufacturing: Evaluating the resistance of vulcanized rubber to crack growth.
    • R&D and QC: Used to evaluate fatigue in products subjected to constant flexing. 
    Standards Complied 
    • ASTM D813: Standard Test Method for Rubber Deterioration—Crack Growth.
    • Similar to ISO 132 and DIN ISO 132 for DeMattia flex cracking. 
    Key suppliers and manufacturers of this equipment include NextGen Material Testing, Unuo Instruments, and CCSi Inc.. 
    • Shoes Upper Flexing Tester (Demattia Tester) AF15
      Application Of Shoes Upper Flexing Tester (Demattia Tester) Shoes Upper Flexing Tester (Demattia Tester) suitable for rubber, leat...
      aveno technology co., limited
    • ASTM D813-1 Specimen Molds & Piercing Tool - ccsi-inc.com
      Use the UltraLife Specimen Mold: ASTM D813 for crack growth testing, ensuring accurate flex endurance evaluations using the De Mat...
      www.ccsi-inc.com
    • Gibitre™ DeMattia Immersion Type Flex Tester - ccsi-inc.com
      The immersion media may be fluids (air at ambient, elevated or subnormal temperatures) or liquids such as oils, fuels, solvents, o...
      www.ccsi-inc.com
    Show all
    • Shoes Upper Flexing Tester (Demattia Tester) AF15
      Application Of Shoes Upper Flexing Tester (Demattia Tester) Shoes Upper Flexing Tester (Demattia Tester) suitable for rubber, leat...
      aveno technology co., limited
    • ASTM D813-1 Specimen Molds & Piercing Tool - ccsi-inc.com
      Use the UltraLife Specimen Mold: ASTM D813 for crack growth testing, ensuring accurate flex endurance evaluations using the De Mat...
      www.ccsi-inc.com
    • Gibitre™ DeMattia Immersion Type Flex Tester - ccsi-inc.com
      The immersion media may be fluids (air at ambient, elevated or subnormal temperatures) or liquids such as oils, fuels, solvents, o...
      www.ccsi-inc.com
    • ASTM D813 Tensile Testing Equipment At 300±10 Times/min For ...
      The DeMattia Flex Tester is designed to test the upper material of the shoe, including fiber optic testing and rubber testing. The...
      www.labtesting-equipment.com
    • D813 Standard Test Method for Rubber Deterioration—Crack Growth
      Jul 21, 2025 — 4.2 No exact correlation between these test results and service is implied due to the varied nature of service conditions. * 1.1 T...
      ASTM International
    • D813 Standard Test Method for Rubber Deterioration—Crack Growth
      Jul 21, 2025 — D813 Standard Test Method for Rubber Deterioration—Crack Growth.
      ASTM International
    • Demattia Flex-Cracking Tester for Sale - Unuo Instruments
      Demattia Flex Tester is used to test rubber crack growth under repeated bending or flexing. Unuo Instruments; 18 months warranty; ...
      Unuo Instruments
    • Demattia Flex Cracking Tester - NextGen Material Testing
      GenDin is designed to conform to the ASTM, EN, IS0 and DIN standards. This top quality and highly popular abrasion tester will all...
      NextGen Material Testing
    • Cracking The Code: ASTM D813
      Jun 20, 2024 — now imagine a world where Robert could tell you its Secrets welcome to the captivating realm of ASTM d-8113 a standard test method...
      1:41
      YouTube·Coi Rubber Products
    • Demattia Flex Tester - Presto Stantest
      De-mattia Flex tester is a consistent tool useful for checking the resistance of vulcanized rubber or synthetic elastomers to cut ...
      prestogroup
    • DeMattia Flex Cracking Tester for Rubber Samples Test
      Feb 1, 2024 — The De Mattia flexing machine is a testing instrument that evaluates the durability of rubber materials and highly stretchable fib...
      www.envi-chambers.com
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    Videos
    Cracking The Code: ASTM D813
    YouTube · Coi Rubber Products
    Jun 20, 2024
    YouTube · Coi Rubber Products
    1:41
    ASTM D813 reveals how vulcanized rubber resists crack growth when flexed, especially for synthetic rubber compounds with small cuts.
    Coi Rubber Products
    YouTube·
    Jun 20, 2024

    Cracking The Code: ASTM D813

    YouTube·Coi Rubber Products·Jun 20, 2024
    YouTube
    De Mattia Flex Tester, Rubber Flexing Tester, Flex Tester
    YouTube · TEXCARE INSTRUMENTS
    Oct 1, 2024
    YouTube · TEXCARE INSTRUMENTS
    2:34
    TEXCARE INSTRUMENTS
    YouTube·
    Oct 1, 2024

    De Mattia Flex Tester, Rubber Flexing Tester, Flex Tester

    YouTube·TEXCARE INSTRUMENTS·Oct 1, 2024
    YouTube
    Demattia Flex Cracking Tester - GenFlex - NextGen Material ...
    YouTube · Quality Control
    Nov 2, 2022
    YouTube · Quality Control
    2:55
    Quality Control
    YouTube·
    Nov 3, 2022

    Demattia Flex Cracking Tester - GenFlex - NextGen Material ...

    YouTube·Quality Control·Nov 3, 2022
    YouTube
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    Web results

    Demattia Flex Cracking Tester


    NextGen Material Testing
    https://www.nextgentest.com › rubber-testing-equipment
    NextGen Material Testing
    https://www.nextgentest.com › rubber-testing-equipment
    GenDin is designed to conform to the ASTM, EN, IS0 and DIN standards. This top quality and highly popular abrasion tester will allow you to measure the abrasion ...Read more

    Demattia Flex-Cracking Tester for Sale


    Unuo Instruments
    https://www.unuo-instruments.com › Products
    Unuo Instruments
    https://www.unuo-instruments.com › Products
    Demattia Flex Tester is used to test rubber crack growth under repeated bending or flexing. Unuo Instruments; 18 months warranty; CE & ISO17025 calibrated ...Read more
    Missing: Upper ‎| Show results with: Upper

    ASTM D 813


    Paramount Instruments
    https://paramountinstruments.com › product-standard › a...
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    DeMattia Flex Tester


    Amade-Tech
    https://www.amade-tech.com › product › demattia-flex-...
    Amade-Tech
    https://www.amade-tech.com › product › demattia-flex-...
    It is used to determine the resistance of vulcanized or thermoplastic rubbers to the formation and growth of cracks when subjected to repeated flexing or ...Read more

    Upper DeMattia Flexing Fatigue Tester GT-KB08A


    gester international co.,ltd
    https://www.gester-instruments.com › upper-demattia-fle...
    gester international co.,ltd
    https://www.gester-instruments.com › upper-demattia-fle...
    Upper DeMattia Flexing Fatigue Tester is to determine bending resistance of rubber, leather, synthetic leather, shoe sole and other materials. Brand: GESTER.Read more

    ASTM D813-1 Specimen Molds & Piercing Tool - ccsi-inc.com


    ccsi-inc.com
    https://www.ccsi-inc.com › ... › ASTM Specimen Molds
    ccsi-inc.com
    https://www.ccsi-inc.com › ... › ASTM Specimen Molds
    Use the UltraLife Specimen Mold: ASTM D813 for crack growth testing, ensuring accurate flex endurance evaluations using the De Mattia method. Contact CCSi.
    Missing: Upper ‎| Show results with: Upper

    ASTM D813 Upper Flexing Tester


    UTS International Co., Ltd
    https://www.utstesters.com › astm-d813-upper-flexing-t...
    UTS International Co., Ltd
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    Digital Elemendorf Tear Tester M006B. To determine the tearing resistance strength (Elmendorf method) for various textiles. Also available for thick paper, ...Read more

    DeMattia Flex Cracking Tester and Flexing Test Technique ...


    NextGen Material Testing
    https://www.nextgentest.com › blog › demattia-flex-crac...
    NextGen Material Testing
    https://www.nextgentest.com › blog › demattia-flex-crac...
    Oct 21, 2020 — The DeMattia tester performs 60 to 300 flex cycles per minute. There are two testing methods used: Flex-cracking vs cut-growth test.Read more

    Footwear Testing Equipment Leather Test Equipment


    envi-chambers.com
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    Feb 2, 2024 — Shoe Toe Box Flexting Tester ; Shoe Flexing Tester ; De Mattia Flex Cracking Tester (1), ASTM D813, ISO 132: 1999(E), BS 903-A 10: 1999, JIS K6260 ...Read more
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