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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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[Instrument Characteristics]
1. Infrared photoelectric invisible inclined plane
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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,
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Technical parameters
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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 
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- Enhanced Energy Efficiency- Infrared heating is more energy-efficient than traditional heating methods.- The controller optimizes energy use by adjusting the IR output based on process needs, reducing overall energy consumption.
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- Applicability to All Textile Types - Suitable for dyed, printed, or coated fabrics across various fibers (cotton, polyester, blends, etc.).
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- Accurate Breathability Measurement - Precisely measures how breathable a fabric is, essential for comfort and performance.
- Supports Quality Control - Ensures consistent air permeability in fabric batches, critical for products like PPE, sportswear, and filters.
- Enhances Product Design - Helps in selecting or engineering fabrics with the right airflow properties for specific uses.
- Standard Compliance - Conforms to international testing standards (e.g., ASTM D737, ISO 9237), ensuring global credibility.
- Quick and Reliable Testing - Provides rapid results, increasing lab efficiency and production decision-making speed.
- Wide Material Compatibility - Suitable for woven, nonwoven, knitted fabrics, and even paper or coated materials.
- Improves Functional Performance - Helps optimize products for ventilation, moisture control, and thermal comfort.
- Reduces Product Failure - Identifies underperforming fabrics early, minimizing risks in high-performance applications.
- Digital Display - Shows air permeability readings clearly in units like L/m²/s or cm³/cm²/s.
- Precise Test Head/Clamp - Provides an airtight seal to prevent air leakage and ensure accurate results.
- Adjustable Pressure Settings - Allows testing under various pressure drops (e.g., 10–2500 Pa), depending on fabric type.
- Automatic Airflow Measurement - Built-in sensors or flow meters capture airflow rate automatically for quick analysis.
- Multiple Test Area Sizes - Interchangeable test plates to match different sample sizes and standard requirements.
- Data Logging and Export - Some models include USB or software connectivity for storing and exporting test results.
- Standard Compliance - Conforms to ASTM D737, ISO 9237, BS 5636, DIN 53887, etc.
- Robust Construction - Built with corrosion-resistant materials and durable components for long-term lab use.
- Low Maintenance - Simple cleaning and calibration process for reliable performance.
- Compact and User-Friendly Design - Ideal for lab benches and easy operation with minimal training.
- Prepare the Sample - Cut the fabric sample to the required size (usually circular, e.g., 20 cm²).
- Mount the Sample - Place the fabric securely in the test clamp or holder, ensuring no wrinkles or gaps.
- Set Test Parameters - Adjust the air pressure drop according to the fabric type or standard (e.g., 100 Pa).
- Start the Test - Turn on the air supply and start the airflow through the fabric.
- Read the Measurement - The digital display will show the air permeability value in the selected units.
- Record the Results - Note the readings or export data if the device supports it.
- Repeat if needed - Test multiple samples or areas for accuracy and average the results.
- Clean and Maintain - After testing, clean the clamp and ensure the device is calibrated regularly.
r Permeability Tester
Appliance Range
It is used to TEST the air permeability of various textile fabrics, including industrial fabrics, nonwoven fabrics and other textile products and other breathable materials.
Related Standards
GB / T 5453, GB / T 13764, ISO 9237, ISO 5636, ASTM D737, etc.
Instrument characteristics
1. Automatic sample clamping, automatic nozzle replacement, and quick test.
2. Microcomputer processing, the test results are displayed directly, without manual table calculation;
3. Built-in continuous test mode, the test unit can be switched as needed.
4. Chinese LCD menu operation, configure computer interface.
Technical parameter
1. Range of sample pressure difference: 1 ～ 4000Pa
2. Measurable air permeability: 1 ～ 40,000mm / s
3. Measurement error: ≤ ± 2%
4. Measurable fabric thickness: ≤8mm
5. Test area: 5cm2; 20cm2; 50cm2; 100cm2
Ф50mm (≈19.6cm2)
Ф70mm (≈38.5cm2)
6. Nozzles: 11 in total (automatic replacement of digital setting)
CODE 00 01 02 03 04 05 06 07 08 09 10
DIAφ（mm）
0.8 1.2 2 3 4 6 8 10 12 16 20
7.Data Capacity:≤200 times tests
8.Power Supply：AC220V 50Hz 2KW
9.Weight：80Kg
10.Shape：1250×700×1250mm 
Fabric flame retardant tester
Fabric Flame Retardant Tester
Fabric Flame Retardant Tester
- Sample Preparation: A fabric specimen is cut to specified dimensions and conditioned as per standard requirements.
- Mounting: The sample is mounted vertically or at a specified angle in the testing chamber.
- Ignition: A controlled flame is applied to the fabric for a predetermined time.
- Observation: The tester records ignition time, flame spread, after-flame time, and afterglow time.
- Evaluation: Results are compared against standard criteria to determine compliance.
- Prepare the Sample
- Mount the Sample
- Set Up the Burner Position the burner at the required angle (usually 90° for vertical tests).
- Ignite the Flame - Apply the flame to the bottom edge of the fabric for 12 seconds.
- Observe and Measure - Start timing when flame is applied.
- Record the Results
- Compare with Standards
burning of flammable textile materials after ignition.
(specific ignition nozzles and sample holders can be customized to meet multiple criteria).
Related standards
GB/T14644 ASTM D1230 CFR1610 etc.
Technical parameters
1. The spread of time:0 ~ 999.9S resolution 0.1S
2. The temperature inside the box shows:Room temperature -99 degrees C resolution 1 c
3. Igniting time:1S
4. Type of igniter:4 1/2 syringe
5. Sample clip size:Outer frame:204mm * 78mm inner frame:152mm×38mm
6. Distance from the top of the igniter to the sample surface:8mm
7. Studio size and outline size
Studio size:370mm×220mm×350mm
Outline size:375mm×245mm×478mm
8. Power supply:AC220V 50Hz 20W
9. Weight:18Kg
