The Elmendorf Tearing Strength Tester: A Complete Guide-gester-instruments.com

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The Elmendorf Tearing Strength Tester: A Complete Guide July 31 , 2025

The Elmendorf Tearing Strength Tester: A Complete Guide

The Concept of Tear Strength

Individual yarns in a fabric tear under stress concentration in the remaining fabric, which is referred to as the tear phenomenon of the fabric. For example, when a fabric is grabbed by an object, the local yarns will be forced to tear. Or part of the fabric is fixed and torn into two halves. Typically, tear performance is used to assess the durability of textiles, such as resin-treated cotton and wool chemical fabrics.

What is an Elmendorf Tear Test?

The Elmendorf tear tester measures material resistance to tearing. It is used to conduct fabric tear strength tests. It measures the tear strength of fabrics. It achieves this using the pendulum tear method. The pendulum falls from a certain height. It converts all potential energy into kinetic energy and cuts the fabric. Then, it measures the force required to tear the fabric to a certain length. This force indicates the difficulty of tearing the fabric.

This Digital Tearing Tester is designed for Elmendorf method tearing resistance test of textile, non-woven fabrics, paper, paper board, thin film, ventilation tape, metal sheet materials and etc.

How do You Calibrate the Elmendorf Tear Tester?

The calibration of the device is performed by measuring the test weight and calibration weight.

There are four calibration weights and four test weights. For the calibration process, we start with the lightest weight. We attach the calibration weight to the test weight and then select the test weight on the device.

Elmendorf calibration weights and test weights

Press the start buttons on both sides of the table below the device to release the pendulum. The values read are compared with the table values to verify if they are within the correct range.

If the device's calibration is within the correct range, it indicates that the device is in good condition. We repeat the same process for weight B and make adjustments on the device's screen.

We compare the value read on the screen with the table value. Now, we select C and check D on the screen. During the test, the weight increases from A to D. This means the force also increases.

Therefore, the harder the fabric is to tear, the greater the resistance, and the heavier the test weight. Finally, we select weight B on the device and re-read the value. After completing the calibration process, you can begin testing the sample.

How to use Elmendorf Tear Tester?

Fabric tearing strength tester equipped with 1pc of Load A, 1pc of Load B, 3pcs of Load C and a sample template.
Connect with electricity, compress air.
Turm on the elmendorf tearing strength tester.
Choose the suitable test range according to the sample and put matched loads.
Click "Set“ , set the test parameters.
Need to click"CALIBRATIONT“ when you change to new loads.
Click"Clamp“ after put the sample.
Click"Start' , machine will complete the test automatically.
Can print out the test results.

elmendorf tearing strength tester

Why to Choose GESTER Elmendorf Tearing Tester

Elmendorf tearing strength tester: advanced calculation methods make sure precision test & good repetition.
Microcomputer system, can do auto test, calculate, analysis result, print test report.
Upload the test data.
Humanity operation system, Chinese and English operation interface.
Elmendorf Tearing Tester Can look up all the datum & statistical result in mainframe freely.
Tear test unit can convert between N, gf, cN and lbs, suitable for different standards requirements automatically.
Cut sample automatically, making sure same shape of notch, reducing operation strength.

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