UT Rotary

UT-25mm Rotary

Ultrasonic Rotary Mechanisms for High Speed Testing of Round Bar and Tubular Products

MAC Rotary units are manufactured in several sizes, to inspect products ranging from 5mm to 500mm.


  • Oil country tubular goods – test to API 5CT and 5L standards
  • Seamless and welded tube
  • Heat exchanger tube
  • Hydraulic boiler tube
  • Umbilical tube for off shore installations
  • Large round billets during early stages of production
  • Hot rolled bar
  • Small diameter highly finished bar and wire
  • Specialty steel bars

MAC’s Echomac FD series of instruments, when used in conjunction with our rotaries, provide optimum performance and make up a complete system to test your product.

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High-speed Ultrasonic (UT) Systems enable a full volumetric examination of materials and are designed to detect surface, subsurface, internal and dimensional flaws.

Echomac® 150mm Rotary System

This type of testing utilizes high-frequency sound waves that are transmitted throughout the material being tested in order to conduct a thorough inspection.

  • Ultrasonic inspection can be used to detect surface flaws, such as cracks, seams, and internal flaws such as voids or inclusions of foreign material. It’s also used to measure wall thickness in tubes and diameters of bars.
  • An ultrasonic wave is a mechanical vibration or pressure wave similar to audible sound, but with a much higher vibration frequency. For NDT purposes, the range is usually from 1MHz to 30MHz or higher.
  • Depending on the test requirements, these waves can be highly directional and focused on a small spot or thin line, or limited to a very short duration.
  • Two methods of UT are used for flaw detection – Shear and Compression Wave.

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