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Digital Elmendorf tearing tester
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Digital Elmendorf Tearing Tester
Digital Elmendorf Tearing Tester
Digital Elmendorf Tearing Tester is a precision instrument used to measure the tear strength of materials like woven fabrics, paper, plastic films, and nonwovens. It determines how much force is required to continue tearing a pre-slit sample.
Key Functions of Digital Elmendorf Tearing Tester:
– Measures propagation tear resistance, not initial tear.
– Uses a pendulum to apply force; the energy lost during tearing is calculated to determine tear strength.
– Equipped with a digital display for direct reading of results in grams or millinewtons.
Core Components:
– Pendulum Arm: Applies tearing force.
– Clamps: Secure the sample before and after the tear.
– Cutting Blade: Creates a precise slit at the start of the test.
– Digital Display Unit: Shows the tearing force result clearly and instantly.
– Counterweights: Optional weights for increasing test range (for stronger materials).
Applications of Digital Elmendorf Tearing Tester:
– Testing tear resistance of:
– Textile fabrics (especially woven)
– Paper and cardboard
– Plastic films
– Nonwovens
– Packaging materials
Benefits of Digital Elmendorf Tearing Tester:
- Accurate Tear Strength Measurement – Provides precise data on tear resistance, critical for quality control and product performance.
- Digital Readout – Easy-to-read display gives instant, reliable results without manual calculations.
- High Reproducibility – Ensures consistent test outcomes due to controlled tearing angle and speed.
- Fast Testing Process – Simple loading and quick test cycle increase lab efficiency.
- Suitable for Various Materials – Tests a wide range of flexible materials like textiles, paper, plastic, and packaging.
- Customizable Range – Use of optional weights extends the test range for low to high tear strength materials.
- Low Sample Waste – Requires small fabric or material samples, reducing waste during testing.
- Standards Compliance – Meets international testing standards (e.g., ASTM D1424, ISO 13937) for credibility and uniformity.
Features of Digital Elmendorf Tearing Tester:
Digital Display – Provides accurate and direct reading of tear strength in grams, mN, or cN. Pendulum Mechanism – Uses a swinging pendulum to simulate tear propagation with consistent force. Adjustable Test Range – Includes interchangeable pendulum weights to test various material strengths.
- Precision Sample Clamp – Securely holds samples in place to ensure accurate tear initiation.
- Pre-Cutting Blade – Integrated knife creates a precise initial slit in the sample before tearing.
- User-Friendly Interface – Simple buttons and screen navigation for ease of operation.
- Standard Test Compliance – Compatible with ASTM D1424, ISO 1974, ISO 13937, and other tear strength standards.
- Sturdy Construction – Made with durable materials for long-lasting performance and stable operation.
- Compact Design – Space-efficient footprint ideal for laboratory environments.
- Data Output Options- Some models offer USB or printer connectivity for result documentation.
How to Use a Digital Elmendorf Tearing Tester:
- Prepare the Sample – Cut the material (fabric, paper, film, etc.) to standard size (typically 100 × 63 mm for textiles) and slit it with the pre-cutter as required.
- Select Pendulum Weight – Choose the appropriate pendulum or add counterweights based on expected tear strength.
- Calibrate the Machine – Set the pendulum to its starting position and zero the display.
- Clamp the Sample – Fix one half of the sample in the stationary clamp and the other in the moving clamp.
- Cut the Initial Slit – Use the integrated blade to make a precise cut at the marked slit area (usually 20 mm).
- Release the Pendulum – Trigger the pendulum to swing and tear the sample through the pre-slit.
- Read the Result – The digital display will show the tearing force automatically (in g, mN, or cN).
- Record or Export Data – Save or print the result if your model supports USB or printer connection.
- Reset for Next Test – Reposition the pendulum and prepare a new sample for the next cycle.
Safety Tip: – Always ensure your hands are clear before releasing the pendulum.
Digital Elmendorf tearing tester
Scope of application
It is used for the determination of the tear resistance of various woven
fabrics (Elmendorf method), and it can also be used for the determination
of the tear resistance of thick paper, plastic sheeting, electrical tape, etc.
Related standards
GB/T 3917.1 FZ/T60006 FZ/T75001 ISO1974/9290 ASTM D1424/5734
etc.
Instrument characteristics
1. Maximum 300N test range
2. Microcomputer control, digital decoding, support online
communication
3. Color touch screen control, Chinese and English menu operation
interface
4. Pneumatic clamping, automatic cutting
5. A variety of measurement units (cN, gf) selection
6. Fully automatic operation with safe operation protection.
7. Automatically increase potential energy
[Technical parameter]:
1. Test range: first gear: (0～16)N second gear: (0～32)N third gear: (0～
64)N fourth gear: (0～128)N fifth gear: (0～300)N
2. Test accuracy: ≤±0.2%F·S
3. Tearing length: 43mm (non-standard 30-60mm can be set)
4. Automatic incision length: (20±0.2)mm
5. Sample size: (100×63)mm
6. Specimen clamping: pneumatic way
7. Sample test: Up to 10 sets per group on the device side, and 30 sets
of data can be selected to be saved
8. Power supply: AC220V±10% 50Hz 100W
9. Dimensions: (650×660×680)mm
10. Weight: 50kg
[Sample of control interface]:(English version is also available.)
Description
Shipping & Delivery
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8. Volume: L420mm × W260mm × H430mm 
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- Slide the Fabric - Gently push the fabric forward so it slowly overhangs the platform.
- Watch for Deflection - Stop sliding when the free end of the fabric bends down to the reference angle (typically 41.5°).
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- Repeat for Accuracy - Test both warp and weft directions and average the results for better accuracy.
Scope of application
It is used to measure the stiffness of cotton,
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knitted fabrics, general nonwovens, coated fabrics, etc.
It is also suitable for measuring the stiffness of paper,
leather, film and other flexible materials.
Relevant Standards
GB/T 18318, ASTM D 1388, IS09073-7, BS EN22313 etc.
[Instrument Characteristics]
1. Infrared photoelectric invisible inclined plane
detection system replaces the traditional tangible inclined plane,
realizes non-contact detection, and overcomes the problem that
the measurement accuracy is affected by
the sample torsion lifted by the inclined plane.
2. The inclination adjustable mechanism of instrument
measurement to meet different test requirements.
3. Stepping motor drive, accurate measurement, smooth operation;
4. The color touch screen display can show the extended length,
bending length, bending stiffness of the sample, the warp average,
the weft average and the total average of the above values respectively.
5. Printing of Chinese report forms for thermal printers.
Technical parameters
1. Test methods: The two method (A method: Weft test, B method: Forward and backward test)
2. Measurement angle:41.5 degree, 43 degree and 45 degree adjustable
3. Extend the length range:5-220 mm (special requirements can be made at the time of ordering)
4. Length resolution:0.01mm
5. Measurement accuracy:±0.1mm
6. Specimen specifications:250×25mm
7. Work platform specifications:250×50mm
8. Specification of sample pressing plate:250×25mm
9. Pushing speed of press plate:3 mm/s; 4 mm/s; 5 mm/s
10. Display output: Touch screen display
11. Print Output: Chinese Report
12. Data Processing Volume: A total of 15 groups, each group less than 20 trials
13. Printer: Thermal printer
14, power supply:AC220V 50Hz
15. Host volume:570mm×360mm×490mm
16. Host weight:20kg 
