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Tearing Strength Tester


Tearing Strength Tester is a consistent tool useful to determine the tearing strength of fabrics, plastic films, and similar materials. Tearing Strength Tester is the tensile force required to rupture a pre-slit sample under controlled test conditions.

Tearing Strength Testers are high quality, low cost and accurate falling pendulum tear testing equipment having an analog display used to determine the average force required to propagate a single tear starting from a cut in plastics, paper,cardboard, woven fabrics and non-woven fabrics with proper configuration. The model also meets ASTM standards.

Tearing strength tester is a laboratory test equipment used to evaluate the average force in grams per sample essential to spread, tearing through a specified length of non-rigid sheets or plastic films. The tester works on the principle of determining the internal tearing resistance, the force perpendicular to the surface of the sheet needed to split multiple plies through a specified area after the rip has been started.

The instrument is also used in textile industry to measure the strength of fabrics or other similar materials. The strength of fabrics is calculated by measuring the work done in tearing through a fixed length of test specimens using Elmendorf Tear Tester.

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Tearing strength tester is used to calculate the average force per sample in grams required to circulate tearing throughout an individual length of non-rigid sheeting or plastic film. Two samples can be placed one with a rectangular shape and another with constant radius testing length. The instrument is equipped with a constant radius testing length. The tester is duly fitted with a pendulum that exerts the force and determines a loss in the potential energy of the pendulum equating to work done, required to tear the paper.

    • The machine is available with the capacities of 1600 grams,  3200 grams and 6400 grams.
    • The clamp surface of each clamp is of Length 35.5 mm x M 15.5 mm.
    • The distance between both the clamps is 2.5 +/-0.25mm.
    • The size of the slit is 20mm.
    • The machine is equipped with a measurement scale reading with the range of 0 to 100%.
    • The machine is available with the calibrated weights 1600grams, 3200 grams and 6400 grams.
      • Accuracy: ± 2% within entire range.
      • Least count of scale : 1%
      • Pendulum Release Mechanism: Manual through release brake pin
      • Finish: Powder coated Havel Gray & Blue combination finish and bright chrome / zinc plating for corrosion resistant finish


    ASTM D1424; D-689; DIN 53862; BS 4153; M&S 29

    • The unit of measurement is “mN” i.e. meganewton.
    • The laboratory equipment comprises of a falling pendulum to cover various angles.
    • The instrument is supplied with cutting templates, board and a cutting knife for preparing a sample for the test.
    • There are a start and stop functions to hold the pendulum for safety.
    • The test parameters include peak load, median load, and tearing strength.
    • The procedure is done to determine tearing strength that involves a cut in the center. An opposing tail, known as the “tongue” is duly clamped in the instrument.
    • High-Quality rugged structure with corrosion resistant main body
    • Falling pendulum type instrument
    • Single handed hassle free operation
    • Highly accurate test results under multiple pendulum weights
    • Strong gripping fixture for holding test samples
    • Pendulum release mechanism to cover various measuring range
    • Inbuilt calibration weights

Corporate Office


Presto Stantest Pvt. Ltd.
I-42, DLF Industrial Area,
Phase-1, Delhi Mathura Road,
Haryana, India

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