Magnetic Particle Inspection

Magnetic Particle Inspection: Magnetic Particle Testing (also called magna-flux testing) is a nondestructive test method used to detect problems at or near the surface in ferromagnetic materials. NIS conducts magnetic particle testing for items such as:

  • Eyebolts
  • Crane hooks
  • Welds on specialty lifters
  • Swivel hoist rings
  • End Effectors
  • Hi-Lo Forks

The process for magnetic particle testing at NIS is outlined below:

  1. Physical characteristics of the test item (size, type, serial number, etc.) are recorded on an inspection report.
  2. Test item is inspected visually for elongation, wear, deformation, and missing capacity markings.
  3. The part is cleaned with a special cleaner to prepare it for magnetic particle testing.
  4. The part is magnetized.
  5. The part is sprayed with a magnetic particle spray.
  6. After the part has been prepared with the particle spray, it is inspected for cracks by a certified technician using a black light and magnetic yoke.
  7. The technician having made the necessary observations, the part is demagnetized and cleaned.
  8. Each passing test item is tagged with a color coded inspection tag, demonstrating that it has been checked.
  9. Test items which do not pass inspection will be tagged with a caution tag as well as a red paint mark.
  10. Lastly, NIS provides a computer generated report on a spreadsheet with a certificate governing regulatory standards for all passing test items.

Other services we provide include:

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