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What grip face should I use with my sample?

Posted by Michael Price on

  • Serrated/Pyramid faces for clamping plastics and soft materials. also called ‘pyramid’, Pyramid jaws are universally used for notch-insensitive samples like, e.g., metal, wood, plastics, gypsum, etc.
  • Rubber coated are used for relatively fragile samples weakened by pinching at the edge of the grip face - monofilaments, wire, film, single fibers, and aluminum. threads, fabrics, and plastic tapes. Rubber jaws are universally applicable for soft notch-sensitive samples like, e.g., paper, foils, cellulose, etc.
  • Smooth Jaws – for smooth surfaced materials. thin sheets, films, foils, paper and tapes
  • Diamond Grit – aggressive surface for soft steels, rigid plastic and wood. ‘diamond cut’ or ’knurled’ for materials requiring a ‘bite’ such as paper, aluminum, copper, board, steel, wire and soft steels. Diamond jaws are suitable for very hard thin samples, metal foils, wires. Diamond corns are ca. 0.091 mm thick and to 66% galvanically fixed in nickel matrix.
  • Wave – provide a deeper bite (5 mm typical) for testing ‘slippery’ test samples including tissues, textiles, and fabrics. Wave jaws can be applied for notch-sensitive samples, fibers, tissues. The waves provide better distribution of traction force within the tissue.
  • V Jaws – round test bars, wire, tubing and rod. V-jaws can be used for notch-insensitive round-shaped samples.