Thwing-Albert Instrument Company is celebrating a milestone for one of its original designs, The Elmendorf ProTear Tester. This machine that was originally designed and manufactured by Thwing-Albert in 1921 and the Thwing-Albert Elmendorf Tear Tester is recognized as the worldwide standard.

Elmendorf Tear TesterThe ProTear Tester offers several capacity configurations ranging from 200 to 25,600 grams, and capacities are changed quickly and easily with augmenting weights. This configuration eliminates the necessity of multiple pendulums and simplifies the testing of different material. Based on the classic design, the ProTear tester combines proven reliability with advanced electronics to provide complete control over your tests and deliver an unparalleled range and quality of data. Thwing-Albert is the original manufacturer of the Elmendorf. We are proud to note that many of these vintage machines are still being used to provide accurate testing results in the field today!

The Elmendorf Test, named after Armin Elmendorf who is the mechanical engineer that invented the instrument, was originally created to test the tearing strength of paper. Over time, this test has evolved to include many additional testing standards to quickly and accurately measure the tear resistance of sheet materials including paper, textiles, roofing products, film, foils, and more.

The Spencer Impact Attachment allows the Elmendorf ProTear to test impact resistance of plastic films and packaging materials. This attachment expands the broad use of this industry wide standard for testing.

This instrument is available for use in many industry testing standards. Thwing-Albert manufactures three models (click to learn more): Electronic, Mechanical, and Heavy Duty.