Protear Elmendorf Mechanical Tearing Tester

The Elmendorf Tear Testers are essential in materials quality control, providing more information on tearing properties than any other instrument. They are recognised as the worldwide standard and are the best way to accurately measure the tear resistance of sheet materials including paper, packaging, foils, textiles, non-wovens and plastic films.

Operation – The tearing resistance of a material is measured via the transfer of the potential energy stored in the raised pendulum to kinetic energy. A portion of this energy is absorbed during the tearing of the sample and is used as a measure of the material”s resistance to a continuing tear. The force required to tear the sample is reported as a percentage of the pendulum capacity.

The mechanical model is a basic tear tester that offers an economic alternative to the electronic version. It offers the same pendulum configuration but without the electronic interface. Test results are obtained by means of a pointer on a graduated scale from 0% to 100%.

There are several configurations ranging from 200 to 6400 g, with capacities quickly and easily changed with augmenting weights, which both eliminate the need for multiple pendulums and simplify the testing of different materials.

Options

• Augmenting weights – quick change of the pendulum capacities between 200 and 6400 g
• Calibration weights of 200, 400, 800, 1600, 3200 and 6400 g to verify instrument calibration
• Calibration certificates for augmenting weights and calibration weights
• Spencer Impact Attachment – measures the impact resistance of various materials, typically plastic film. Complies with ASTM D3420

Performance data

Related Instruments and Attachments

ProTear Elmendorf Electronic Tear Tester		ProTear Elmendorf Heavy Duty Tear Tester		Spencer Impact Attachment		Protear Cutter

For further information,