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ElmenGuide Elmendorf Tear Tester | A smart instrument developed by the sister company ChiuVention.

4.71 (14 reviews)

The ElmenGuide Elmendorf Tear Tester, also known as the Pendulum Tear Tester or the Tearing Resistance Tester. It is used to do fabric tear strength tests. It tests the fabric’s tear resistance by the pendulum tearing method: the pendulum falls from a certain starting height, converts all potential energy into kinetic energy, cuts a slit on the fabric, and then measures the force required for the fabric to tear to a specified length to evaluate the fabric’s tear resistance.

The innovative balance pendulum plate design achieves a higher accuracy for tear testing. The pendulum arm of the ElmenGuide Elmendorf Tear Tester is specially designed, and the center of gravity of the entire pendulum arm coincides with the rotation center when no weights are attached. This results in higher accuracy and reliability of the tear resistance test equipment.

The ElmenGuide Elmendorf Tear Tester complies with ASTM D1424, BS ISO 13937-1, GB/T 3917.1, ISO 4674-2, etc. TESTEX  also provides other kinds of Elmendorf Tear Strength Tester. 

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Description

 

The innovative balance pendulum plate design achieves a higher level of tear testing accuracy.

The pendulum arm of the ElmenGuide Elmendorf Tear Tester is specially designed, and the center of gravity of the entire pendulum arm coincides with the rotation center when no weights are attached. This brings higher accuracy and reliability of the tear resistance test equipment.

Smart instrument

The ElmenGuide Elmendorf Tear Tester can be connected to a smartphone, allowing remote control and monitoring of the testing status. The tear resistance test results can be obtained directly and printed, and equipment warning reminders can be received. Additionally, it achieves one-click sharing of the testing status.

Automatic recognition of weights

The Tearing Resistance Tester can automatically recognize the weight attached and adjust to the corresponding range.

Humanized design, for more safety.

The double-button switch design of this Elmendorf Tearing Tester prevents accidents and is more user-friendly for testing operators.

Precise manufacturing and stable operation

The fixture of this Elmendorf Tear Tester rotates flexibly and the loss of an empty pendulum is minimal.

Multiple measurement units (N, cN, gf, lbf) to choose from.

 

In addition, the ElmenGuide Tearing Resistance Tester has a precise appearance design, with an aluminum alloy hard oxidation surface that is sleek, durable, and easy to clean. The trapezoidal chassis is more stable, and the seven-inch color touch screen is simple and easy to use.

Specifications of ElmenGuide Elmendorf Tear Tester

Load Range: 8N, 16N, 32N, 64N, 128N

Testing accuracy: ≤±0.2%F·S

Tear length: 43mm

Automatic incision length: 20±0.2mm

Sample size: 100×75mm

 

Standard Accessories

Fuse:          2 pcs

Sample cutter:  1 pc, 100mm*75mm

Test weight A:  1 pc, 8N

Test weight B:  1 pc, 16N

Test weight C:  1 pc, 32N

Test weight D:  1 pc, 64N

Test weight E:  2pcs, 128N

 

Calibration weight a: 1 pc, 8C

Calibration weight b: 1pc, 16C

Calibration weight c: 1pc, 32C

Calibration weight d: 1 pc, 64C

Calibration weight e: 1 pc, 128C

 

Standard

ASTM D1424, BS ISO 13937-1, GB/T 3917.1, ISO 4674-2

Weight

70kg

Power

220/110 V50/60 Hz

Dimensions

Length: 580 mmWidth: 420 mmHeight: 600 mm

 

Principle of Elmendorf Tear Tester

The weight is lifted to a certain height, which has a certain potential energy; the dynamic and fixed grippers are aligned, the specimen is clamped between them, and the cutter cuts a mouth in the middle of the specimen. When the hammer is swinging down freely, the dynamic gripper and the fixed gripper are separated quickly, and the specimen is torn by the energy stored in the pendulum itself, and the control system gets the remaining potential energy of the pendulum after the specimen is torn, and calculates the energy consumed to tear the specimen, to get the force needed to tear the specimen.

 

Welcome to TESTEX – a professional textile testing instrument supplier – ElmenGuide Elmendorf Tear Tester is on sale, we will provide Elmendorf tear tester prices for you quickly, and if you want to know more about the Elmendorf tearing strength test, you can visit our blogs.

More about Elmendorf Tear Tests

After a period of wearing clothes, due to abrasion to make the yarn thin, the local yarn within the fabric is broken by the force and forms a crack. This phenomenon of fabric being torn apart under the action of the concentrated load is usually called tearing. The tearing strength of the fabric or Elmendorf tear strength is an important indicator of the textile. The instrument used to determine this index is called a fabric tearing strength tester. It is more widely known as the Elmendorf Tear Tester.

The fabric tear tester can be used to determine the tear strength of various fabrics. The fabric tearing tester is a must for all textile manufacturing and processing enterprises, as well as textile-related testing institutions. Because of its simple structure, ease of use, test data stability, and many other advantages,  textile, paper, packaging, and many other industries are using it in large numbers. The difference is that each industry has a different standard of sample making.

Some related nicknames for the Elmendorf tear tester are Elmendorf tear resistance tester, Elmendorf tearing strength tester, Elmendorf tear strength tester, etc.

You can also get more knowledge about other fabric tearing strength tests.

14 reviews for ElmenGuide Elmendorf Tear Tester | A smart instrument developed by the sister company ChiuVention.

  1. Kate

    Very easy to use, with immediate tear strength results.

  2. Jane

    Automatic specimen clamping for stability testing. Working good!

  3. Benjamin H

    All of this elmendorf Tear tester is good, but I wish the interface could be better designed, but just works well with the testing:D

  4. James Smith

    My customer needed a tearing strength testing, I got full support from TESTEX, highly recommend.

  5. Jonas Lowell

    Goods Received. Feels like professional quality. MUCH better than what we’ve been using for the past year that we paid more for

  6. Isabel Steinbeck

    Very nice.So easy to setup.

  7. Yves Church

    Very satisfied with this Elmendorf Tear Tester price and performance.

  8. Phil Dalton

    The operation of this tester is simple and convenient,pretty good!

  9. Burton Copperfield

    Very useful machine! Recommend!!

  10. Willie Dupont

    The elmendorf tear test unit is excellent for its performance.

  11. Pamela Eveline

    Everything is good, but some problems appear in communication. The manufacturer of elmendorf tearing tester still strive to solve for me.

    • testextextile

      We feel so sorry for this. We’ll continue to struggle for providing best service for customers.

  12. Arshad

    sir, i like your equipment because it is so frinedly use, but i need some guidance about Elmendrof tear tester TF140B. can you please do me a favor. i want to know how to calibrate this version of tear tester?? i hope you will guide me..

    • testextextile

      Mr Arshad,our colleague will contact you by email as soon as possible.

  13. Lou Lowell

    Everything was great!

  14. Saxon

    bom vendedor produto chegou antes do prazo eu recomendo !!!

    • testextextile

      Thank you for your support!!

Leave a customer review

What is the Tear of Fabric?


Elmendorf tear definition refers to the phenomenon that yarn inside the fabric breaks one by one and tears the fabric into a crack when a part of the fabric edge is subjected to concentrated loading.


The Elmendorf tear strength of textiles is affected not only by the fabric's properties but also by every finishing process of fiber. According to the actual development requirements of textiles, the American Society for Testing Materials (ASTM) has formulated a series of textile tearing strength standards (ASTM D1709, ASTM D1938, ASTM D1004 PDF, ASTM D1922 PDF, ISO 6388-2 PDF), and ISO followed these standards.


The tear usually occurs in the process of using military uniforms, sails, tents, umbrellas, hammocks, and so on, and tear strength is the most remarkable ability to resist tearing during the use of fabric. The Elmendorf tear test is a common method for measuring tear strength, which is used to test various international standards according to the Elmendorf tear test formula. Elmendorf test can not only test the tear strength of the fabric but also the tear strength of some plastics and cartons.



Test Procedure



  1. Prepare samples: Make corresponding samples according to test standards.

  2. Adjusting pressure gauge: Check whether the pressure gauge value is in the range of 0.6 ±1 MPa, otherwise, adjust the pressure relief valve to meet the requirements. Start the Elmendorf tearing tester, enter the working interface, and set the corresponding parameters.

  3. Zero adjustments and calibration: Adjust the Elmendorf tearing tester calibration according to the test manual, and adjust the angle, then return to the main page to start testing.

  4. Sample test: Select a suitable hammer to test all samples and save Elmendorf tear test results.


(For detailed steps, please refer to the Elmendorf tear test manual of random incidental)



Calculation of the test result


The calculating tool: standard tearing tester whose pointer displays data showing in the form of a percentage of the total scale, records the value of each specimen, and is accurate to 1% of the full scale on the apparatus. The test result can be calculated in accordance with equation 1.


Ft = Rs x Cs / 100


(1) Tearing force = the number of pointer scales x force value at full scale (Ibs) / 100


(1) Ft = tearing force in the cN (gravity) unit or 1 pound.


Rs = number of pointer scales;


Cs = force value at full scale in the cN (gravity) unit or 1 pound.


Heavy-duty tearing tester whose pointer displays data in force values: records the results of each specimen and is accurate to 1% of the full scale of the instrument. The test result can be calculated in accordance with equation 2.


Ft = Rs x 100

(2) tearing force (Ibs) = scale reading x 100

(2)Ft = tearing force in the cN (gravity) unit or 1 pound.

Rs = number of pointer scales in the unit of cN (gravity) or 1 pound.

Computer processing of data: When the data are processed automatically by the computer, the calculations are generally generated under the effect of the software, and the test results can be read directly from the computer and are accurate to mN (gf). In any case, computer-processed data should be verified by the fabric first whose result has been known, and the software program needs to be described in the report.



Notice



  1. Before using, place the hammer in place, and tighten the jam hand wheels.

  2. When the instrument works, keep your hands and head beyond the turning area of Handle 11; the handle should not touch any obstacles.

  3. When the instrument has been unused for a long time, you should swing it more times before use, and proceed with calibration operations.

  4. Be sure to have the swing device in a locked state when moving the instrument.

  5. No strong electromagnetic interference around.

  6. Clean the Elmendorf tear test units when the instrument is not used, and store the pendulum properly to avoid collision, friction, or corrosion.


The machines for tear strength are in hot sales now! Welcome to contact us if you want to know the Elmendorf tear tester prices and how to use the Elmendorf tear tester.

 

Elmendorf Tear Test Method by the standard of GB/T 3917.1-2009


Mounting the specimen:

The specimen is clamped in the fixture so that the long side of the specimen is parallel to the top edge of the fixture. Clamp the specimen in the center position. Gently place its bottom edge to the bottom of the jig and cut a (20±0.5) mm cut on the opposite side of the groove with a knife (or shear tool), with the remaining tear length of (43±0.5) mm.

Operation steps:

Press the pendulum stop button and release the pendulum. Hold the pendulum when it swings back so as not to destroy the position of the pointer and read out the tearing strength in Newton from the measuring device scale index or digital display.

As different manufacturers may not have the corresponding coefficient in Newton, so the test data needs to be converted into Newton as the unit to display the results after the test results are completed, and the test results should fall within 15% to 85% of the scale used. Repeat the test at least 5 times in each direction

Observe whether the tearing proceeds in the direction of the force and whether the yarn slips from the fabric rather than being torn. A test that meets the following conditions is a valid test.

a) The yarn has not slipped from the fabric;

b) The specimen does not slip out of the fixture;

c) the tear is complete and the tear is always within a 15mm wide groove

Test results that do not meet the above conditions should be rejected.

This method is not applicable if three or more of the five specimens are rejected.

If the agreement requires additional specimens, it is best to double the number of specimens and also to agree on how the test results are to be reported.

 

Calculated results:

The impact pendulum method directly measures the test results and usually expresses the tear resistance of the fabric in Newton by the force value. The results in other units should be converted to Newtons.

Calculate the arithmetic mean of the tearing strength in Newtons for each test direction, retaining two valid digits.

If required, calculate the coefficient of variation (accurate to 0.1%) and 95% confidence interval, retaining two significant digits, in Newtons.

If required, record the maximum and minimum tearing strength of the specimen in each direction.

 

Test Notes:

1. Ambient temperature and humidity will affect the test results.

2. The choice of weight range is also important.

3. Each test needs to be zeroed and calibrated beforehand.

4. Each time after the replacement of weights also need to do zero calibration.

 

Currently, there are mechanical pendulum tear strength testers, digital pendulum tear strength testers,s and pneumatic pendulum tear strength testers in the market, the main principle is the same, the main difference is the way to hold the sample and the way to read the value is different.

 

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    Q: Do you have elmendorf tear tester manual?

    A: Yes, please contact our sales person.

     

    Q: What is elmendorf tear definition?

    A: Elmendorf Tear ASTM D1922. Propagation Tear Resistance of Plastic Film and Thin Sheeting by Pendulum Method (Elmendorf Tear) ASTM D1922. Scope: A pendulum impact tester is used to measure the force required to propagate an existing slit a fixed distance to the edge of the test sample.

     

    Q: How are elmendorf tear test results?

    A: You can refer to the Elmendorf Standard Test for the specified.


     

    Q: How to use elmendorf tear tester?

    A: There are some steps you can follow in the “Description”. What’s more, there is a detailed procedure of the usage of elemndorf tear tester in our product manual. We can offer the e-manual if you need. Please contact us via e-mail.

     

    Q: Can you provide the Elmendorf tear test formula for me?

    A: Actually, there are different formulas of different national testing standards, and you don’t need the formula because our product will calculate the results for you automatically.







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