Elmendorf Tear Tester: Precision in Tearing Resistance Measurement

Critical Tool for Assessing Tear Resistance in Packaging and Wrap Films

Measure and ensure the durability of stretch wrap films, food wrap films, and other materials with precision using the Elmendorf Tear Tester. Essential for R&D, quality control, and compliance testing.


    SLD-01 Elmendorf Tear Tester 

    The SLD-01 Elmendorf Tear Tester evaluates the tear resistance of materials like stretch wrap films, food wrap films, and industrial plastic films, ensuring durability and compliance with ASTM D1922 and ISO 6383 standards. Its advanced design and precise measurements make it indispensable for packaging and film testing in multiple industries.

    Overview: Elmendorf Tear Tester for Wrap Films

    Tear resistance is a crucial property for packaging materials, especially for stretch wrap films and food wrap films. These films protect goods during storage and transit, requiring optimal tear strength to withstand stress. The Elmendorf Tear Tester, named after inventor Armin Elmendorf, provides an accurate measure of tear resistance, ensuring the quality and reliability of these films.

    Wrap films, such as those used for palletizing goods or preserving food, demand high resistance to mechanical stress, environmental factors, and handling conditions. Testing their tear strength ensures performance and cost efficiency.

    Importance of Testing Wrap Films with the Elmendorf Tear Tester

    Why Tear Resistance Matters

    • Durability: Packaging materials must endure handling stresses without tearing.
    • Product Safety: Tear-resistant films protect the contents from contamination or spillage.
    • Regulatory Compliance: Conforming to ASTM D1922, ISO 6383, and other standards ensures product reliability and market approval.

    Advantages for Businesses

    • Reduced Wastage: Identify and eliminate weak points in film production.
    • Enhanced Performance: Develop films with optimal strength while minimizing material usage.
    • Sustainability Goals: Optimize film production to reduce plastic waste and environmental impact.

    Working Principle of the Elmendorf Tear Tester

    The Elmendorf Tear Tester operates based on a pendulum mechanism to measure the tear resistance of materials like stretch wrap films, food wrap films, and other packaging films. This testing process provides critical data on material durability and compliance with standards such as ASTM D1922 and ISO 6383.

    1. Sample Preparation: The material, such as plastic film or non-rigid sheeting, is prepared with a precut slit to initiate the tear.
    2. Pendulum Swing: A precisely calibrated pendulum swings through an arc, tearing the specimen from the precut slit. Acting under gravity, the pendulum creates a controlled propagation of the tear across the material.
    3. Specimen Holding: The sample is held firmly on one side by the pendulum and on the opposite side by a stationary clamp, ensuring consistent and repeatable testing conditions.
    4. Energy Loss Measurement: As the pendulum tears through the specimen, the loss of energy is measured and displayed on SLD-01 Tear Tester screen, instead of the traditional pointer scale. The reading directly correlates to the force and energy required to propagate the tear.
    5. Data Output: The measured force and energy is recorded, providing accurate and reliable data on the tear resistance of the material.

    This efficient mechanism allows for the testing of materials under real-world conditions, ensuring their performance in applications like packaging durability, stretch wrap stability, and food wrap protection.

    Benefits of the Elmendorf Tear Tester for Wrap Films

    Provides precise and reliable results, ensuring optimal performance evaluation for stretch wrap films, food wrap films, and other packaging films.

    Features a user-friendly interface with PLC control and an HMI touch screen for seamless and efficient testing.

     

    Supports a wide variety of film types and thicknesses, catering to the diverse needs of plastic film manufacturers.

    Equipped with a built-in microprinter and RS-232 port (and optional software) for streamlined data analysis and report generation, enhancing workflow efficiency.

    Enables manufacturers to improve the quality and design of packaging materials, reducing production costs while maintaining superior performance and compliance with standards like ASTM D1922 and ISO 6383.

    Configurations and Accessories

    The Elmendorf Tear Tester comes equipped with:

    Standard: Includes the tester, checking weight, pendulum, power cord, manual, fuse.

    Optional Accessories:

    PC software, COM Line, sample plate, sample blade, optional pendulum, optional checking weight, augmenting weight, etc.

    Support and Training

    At Cell Instruments, we provide comprehensive support and training for the SLD-01 Elmendorf Tear Tester. Our services include:

    • Installation Support: Assistance with setup and calibration.
    • Training Materials: In-depth training on how to operate the tester.
    • Technical Support: Ongoing customer service for any operational issues or inquiries.
    • Upgrades and Maintenance: Keep your equipment up to date with the latest program.

    To save cost for customers, we recommended our always free-of-charge online/remote way of above services. 

    FAQs about Elmendorf Tear Tester

    Why is tear resistance important for stretch wrap films?

    Tear resistance ensures that films can withstand stresses during transportation, protecting the packaged goods from exposure and damage.

    What is ASTM D1922?

    ASTM D1922 specifies the standard test method for measuring the tear resistance of plastic films and thin sheeting, including stretch and food wrap films.

    Can this tester be used for food wrap films?

    Yes, the Elmendorf Tear Tester is ideal for assessing the tear resistance of various food packaging films, ensuring they meet quality and safety standards.

    How does the pendulum mechanism work?

    The pendulum creates a controlled tear by propagating an initial slit through the sample, measuring the energy required for this action.

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