Protear Elmendorf Mechanical Tearing Tester

Manually operated, the Elmendorf Tear Tester has a manual pendulum release and manual operated grips. Range of interchangeable pendulums with capacities available up to 1600g. Pneumatic grips available as an option. Manufactured by Thwing Albert.

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.

  • Bench space saving design
  • One-touch pneumatic clamping and pendulum release


  • 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
DIN 53862 53128 ISO 1974 EN 21974 ASTM D295 D751 D1424 D1922 TAPPI T-414 T-496BS 4253 4468 CPPA D.9 SCAN P-11

Performance data

Capacity: 200, 400, 800, 1600, 3200, 6400 g Accuracy: ± 0.5% of pendulum capacity Result reporting: Pointer
Results units: % of pendulum capacity Display: Pointer Specimen clamp: Mechanical or pneumatic
Pendulum release: Mechanical Air supply: Compressed air 6 bar, required for pneumatic clamps only
Operating/storage environment Air temperature: operating 10-50 °C, storage -25-70 °C Relative humidity: operating 10-85% (non-condensing), storage 5-90% (non-condensing)
Physical specifications Dimensions – 48 x 40 x 58 cm (W x L x H) Net weight- 15.2 kg

Related Instruments and Attachments

Protear Elmendorf Electronic Tear Tester 300Protear_Elmendorph_Heavy_Duty_Tearing_Tester 300 Spencer Impact Attachment 300_Protear_Cutter_NBG
ProTear Elmendorf
Electronic Tear Tester
ProTear Elmendorf
Heavy Duty Tear Tester
Spencer Impact
Protear Cutter

For further information, please contact our sales team on 01223 492081 or via