Products & Services
” NIS, has the experience and training to get the job done right the first time. “
Featured Video
SPECIALTY OVERHEAD LIFTERS
(Click the icon above to go to overhead lifters)
Liquid Penetrant Inspection
Liquid Penetrant Inspection: Liquid Penetrant Testing is a nondestructive test method used to detect cracks and other discontinuities at or near the surface in ferromagnetic materials such as:
- Eyebolts
- Crane hooks
- Welds on specialty lifters
- Swivel hoist rings
- End Effectors
- Hi-Lo Forks
The NIS process for Liquid Penetrant Testing follows the steps outlined below:
- Physical characteristics, such as size, type and serial number (if available) of test item are recorded on an inspection report.
- Test item is visually inspected for elongation, wear, deformation, and missing capacity markings.
- The part is cleaned with a special cleaner.
- The part is sprayed with a liquid penetrant spray.
- The liquid penetrant is cleaned away after the manufactures designated time.
- The part is sprayed with a developer spray.
- The part is inspected for cracks by a certified technician.
- The part is cleaned.
- Each passable test item will be tagged with a color coded inspection tag, demonstrating that it has been checked.
- Test items which do not pass inspection will be tagged with a caution tag as well as a red paint mark.
- Lastly, a computer generated report will be provided on a spreadsheet with a certificate governing regulatory standards for all passing test items.
Other services we provide include:
