Elmendorf Tear Tester, Elmendorf Tearing Strength Tester

Elmendorf Tear Tester (patented product), A computer controlled falling-pendulum instrument, to decide the ballistic tearing strength of textiles, plastics, paper or board.

It enables rapid determination of the dynamic resistance of materials designed to be subjected to strong shearing loads (e.g. fabrics) or liable to be damaged by sharp or heavy objects (e.g. paper bags). Subsequently, the test was naturally adopted for all materials in the form of sheet or films, cardboards, cloth, knitted fabrics, plastic films, aluminum foil, non-woven fabrics, complex flexible packaging etc. But does not apply to sparse fabric or stretch materials which tearing direction might be shift in test.