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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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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 
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- Observation: The tester records ignition time, flame spread, after-flame time, and afterglow time.
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6. Distance from the top of the igniter to the sample surface:8mm
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Mini Lab Dyeing Padder
- Adjustable Rollers - The fabric is passed through two or more rollers to apply even pressure and squeeze out excess solution, ensuring uniform chemical or dye application.
- Variable Pressure Control - Allows adjustment of roller pressure for different fabric types and chemical formulations, ensuring optimal penetration without damage.
- Solution Bath - Holds the liquid (e.g., dye, finish, or other chemical treatments) in a bath through which the fabric is dipped before passing through the rollers.
- Fabric Speed Control - Adjustable conveyor speed allows for control over the time the fabric spends in contact with the liquid solution, affecting the degree of treatment.
- Digital Control Panel - Provides easy adjustment of pressure, speed, and solution volume to ensure precise and reproducible results.
- Compact Design - Smaller, lab-scale version of industrial padders, ideal for research, development, and small-scale testing.
- Safety Features - Safety guards, emergency stops, and proper handling mechanisms to prevent accidents during operation.
- Precise Application of Chemicals - Provides uniform and controlled application of dyes, finishes, and other chemicals, ensuring consistent results.
- Small-Scale Testing - Ideal for small sample testing, allowing for fabric treatment without needing full-scale production equipment.
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- Stainless Steel Construction - Durable and resistant to corrosion from the chemicals used in textile treatments.
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- Prepare the Solution - Mix the dye, chemical, or finish solution according to the desired concentration and the fabric's needs. Ensure that the solution is homogeneous.
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- Load the Fabric into the Machine - Place the fabric carefully into the machine. The fabric should go through the solution bath and then pass between the rollers.
- Start the Machine - Turn on the machine and allow the fabric to pass through the rollers. The solution will be evenly applied to the fabric as it moves through the bath and is squeezed by the rollers.
- Monitor the Process - Keep an eye on the fabric to ensure it is being treated uniformly and there are no blockages or fabric jams.
- Unload the Fabric - Once the fabric has been treated, carefully remove it from the machine. Inspect for even application of the solution and any excess liquid.
- Dry or Process Further - Depending on the treatment, proceed with further steps such as drying, heat setting, or curing, as required by the experiment or process.
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Laboratory hydro Extractor
Laboratory Hydro Extractor
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- Centrifugal Water Extraction - Uses high-speed spinning (typically 1400–2800 RPM) to extract water from textiles.
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- Compact Lab Design - Space-saving unit designed specifically for laboratory sample sizes.
- Digital Timer and Speed Control - Allows precise setting of spin duration and RPM to match sample needs.
- Safety Lock System - Ensures the lid remains closed during operation for user safety.
- Quick Water Removal - Significantly reduces drying time by extracting up to 90–95% of water content.
- Low Noise and Vibration - Balanced design ensures quiet and stable operation.
- Efficient Water Removal - Rapidly extracts 90–95% of water from samples, reducing drying time significantly.
- Saves Time and Energy - Cuts down the load on dryers and shortens total processing time in lab workflows.
- Improves Sample Quality - Gentle spinning preserves fabric structure, avoiding damage or distortion.
- Precise Control - Adjustable speed and timer ensure optimal settings for different fabric types.
- Compact and Lab-Friendly - Small footprint ideal for laboratory use with limited space.
- User Safety - Safety lock prevents lid opening during operation, protecting the user.
- Cost-Effective - Reduces the need for extended dryer use, saving on electricity and equipment wear.
- Versatile Use - Suitable for yarn, fabric, and garment samples across various fiber types.
- High-Speed Centrifugal Operation - Typically runs at 1400–2800 RPM for quick and efficient water removal.
- Stainless Steel Inner Drum - Corrosion-resistant, perforated basket for durability and efficient water drainage.
- Digital Timer and Speed Control - Allows precise control of spin duration and speed based on sample type.
- Compact and Portable Design - Ideal for lab environments with limited space.
- Safety Lock Mechanism - Prevents the lid from opening while the machine is in operation.
- Shock Absorption System- Reduces vibration and noise for smooth, stable performance.
- Quick Cycle Times - Short dewatering cycles improve lab throughput and efficiency.
- Low Maintenance Design - Simple mechanical setup with easy-to-clean components.
- Sample Versatility - Suitable for small fabric swatches, yarns, and small garments.
- Energy Efficient - Uses minimal power while delivering high performance.
- Prepare the Sample - After dyeing or washing, gently squeeze excess water from the fabric or yarn sample by hand.
- Load the Sample - Open the lid and place the sample evenly in the stainless steel drum. - Avoid overloading or uneven placement to maintain balance.
- Close the Lid securely - Ensure the safety lid is properly closed and locked.
- Set the Timer and Speed - Use the control panel to set the spin time (typically 1–5 minutes) and RPM suitable for the sample type.
- Start the Machine- Press the start button. The extractor will spin at the selected speed to remove water via centrifugal force.
- Wait for Spin Completion - The machine will automatically stop after the timer runs out.
- Unload the Sample - Once the drum stops completely, open the lid and carefully remove the sample.
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Brad: DUNLIN
Origin: China
Application scope of small dehydrator:
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Parameter specification:
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Overall dimension: 290 * 220* 295Hmm
Power supply: single phase 220 V / 50 Hz power: 60 W speed: 1800 R / min
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Laboratory hydro Extractor
