Miniature Tensile Grips

Tensile Grips allow the support of a sample in order to perform a tensile test and measure such parameters as tensile strength or elongation/extensible properties. Tensile test results are calculated from load-extension curves and expressed as Tensile Strength, Work of Failure, Elastic Modulus and Extension (or Elongation) to Break.

The Miniature Tensile Grips, are attached to the base plate and load cell carrier of the Texture Analyser. Typically the sample is located to leave a region of exposed test material between the upper and lower grip whereby breakage during the tensile test should occur. 

With the correct sample geometry and test conditions, the tensile strength of films can be measured according to, for example, ASTM Method D882-91. Methods that are not according to an ASTM Standard are also viable, particularly when sample dimensions cannot be prepared according to the Standard or when the operator may wish to modify parameters such as the test speed. One such example of empirical tensile testing is a traditional method taking a strip of gelatin film (such as that used for capsule manufacture), making a dumbbell-shaped piece for testing, placing the wide ends in the upper and lower grips of a Texture Analyser and measuring the forces to stretch the film to a given distance and/or to rupture the film.

It should be noted that several variations of Tensile Grips are available, depending upon sample size, material strength and grip face requirements. The A/MTG has jaw faces of 25mm x 10mm with a maximum opening of 8mm. These grips are ideal for the identification of the tensile characteristics of samples such as packaging materials, plastic and aluminium film, and have been used in a cycling motion to assess the flexibility of chewing gum sticks and confectionery leathers.

Samples that can be gripped and held without failure at the grip face.

• Smaller dimensions may provide tensile testing for Express490 instruments with limited testing stroke
• Jaw faces 25 x 10mm
• Maximum opening 8mm
• Up to 50kg

Single top grip - A/MTGS