LONG TRAVEL EXTENSOMETER

For Measuring Strain in Highly Extensible Materials

Long Travel Extensometer

Designed for use with both single column and dual column universal testing systems, long-travel (XL) extensometers can be used to measure specimen elongations up to 30 in or 750 mm. The XL is designed to clamp directly onto a specimen quickly and easily. It will adjust to incremental gauge lengths ranging from 0.5 in to 5 in, or 10 mm to 200 mm.


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Principle of Operation

The high elongation extensometer is designed to clamp directly onto a specimen quickly and easily. It will adjust to incremental gauge lengths ranging from 0.5 in to 5 in, or 10 mm to 200 mm. The XL can accommodate up to 10 in of clamp displacement, and is specifically designed to permit testing the sample through rupture without damaging the extensometer or otherwise disrupting the test routine. The XL extensometer is based on a pair of carefully counterbalanced clamp assemblies which drive a potentiometer through connecting cables. Both clamps move freely, but any increase in the separation or differential motion will advance the transducer. The upper and lower specimen clamps are separately counterbalanced and guided on a polished and ground shaft with linear bearings so that none of the extensometer’s weight is applied to the specimen.


Features and Benefits

  • Quick release clamps
  • Counterbalanced for minimum force on sample
  • Variable gauge lengths settings
  • Adjustable clamping pressure for a variety of specimen thicknesses
  • Easily installed on most Instron machines
  • Self-identifying for ease of calibration
  • SI, US, and metric calibration units

Application Range

  • Type of loading: tensile
  • Specimen materials: elastomers, semi-rigid plastics, cellular, films, and other materials with high elongation properties
  • Perfect for testing rubber and elastomers to ASTM D412 and ISO 37
  • Temperature rating: ambient use only

Long Travel Extensometer


Available Models
Catalog Number Compatible Frame Full Scale Travel
2603-084 Single Column 250 mm
2603-086 (Extra Long Travel) Single Column 750 mm
2603-080 Dual Column 250 mm
2603-085 (Extra Long Travel) Dual Column 750 mm
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