Bolt Load Inspection

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TEMATE BL is used to perform ultrasonic bolt load inspection by comparing variations in ultrasonic Time-Of-Flight corresponding to changes in bolt elongation. TEMATE BL can be customized to meet your unique inspection needs.


  • Non-contact EMAT ultrasonic bolt testing technique.
  • EMAT sensors do not mechanically load the surface under test allowing a greater precision of measurement of ultrasonic arrival time variation.
  • Capable of working on non-flat bolt heads.
  • Double wave technique (using SH and L wave sensor) permits ultrasonic bolt load measurement without knowing the original length of the bolt.
  • Custom ultrasonic bolt testing software provides actual load readings (MPa or PSI).
  • Portable and integrated options available (including Innerspec POWERBOX H). Check catalog of standard sensors for portable options.