• Automatic specimen notching and mechanical-pneumatic clamping to prevent sample slippage, ensuring repeatable results.
• Automatic pendulum reset with a lifting device and digital display of tearing force.
• RS-232 data output and compact, table-top design.
• Safety hood to protect the operator during pendulum motion.

Tear testing measures the force required to continue tearing an initial cut in sheet materials, known as the Elmendorf test. It evaluates the mean internal resistance of materials like paper, textiles, and films to tearing. This test is crucial for materials subjected to shearing loads or potential damage from sharp objects.

The test involves a specimen with a standard dimension, using a pendulum to tear the sample. The energy absorbed is measured by the angular movement of the pendulum, converted to mean tearing force by a microprocessor.

• Models 83-20-00 and 83-21-00 with capacities of 0-6400 grams and 0-10,000 grams respectively.
• Pendulum range options and accuracy of 1.0% of the range.
• Calibration weights at 20%, 50%, and 90%.
• Hi-resolution digital encoder measuring principle with a range of 0-100 N for textiles.
• Available in multiple languages and provides statistical data like average, maximum, minimum, SD, COV, and Tear Index.
• Physical dimensions: 21.3 in x 19.7 in x 19.7 in, weight 115 lbs, and electrical requirements of 110V/60Hz or 220V/50Hz.
• Standards compliance for paper, plastic film, and textiles.

• Improved repeatability with a mechanical-pneumatic gripping system.
• Enhanced safety with a safety hood and automatic pre-notching.
• User-friendly interface with an alphanumeric LCD display and data transfer capabilities.
• Ergonomic design with automatic pendulum reset after each test.