Non-destructive testing (NDT) is a method of surface examination for the detection of surface cracks and defects on metals without harming or altering its subject.

Metals under steady state working condition may be exposed to cyclical loading, weathering and metal fatigue causing its gradual deterioration at the inter-granular level. These alterations in the metals are hard to detect with the naked eye and could cause functional damage, so the application of an NDT would be ideal.

BELLING NDT is a simple and mobile detection method that doesn't require the dismantling or dissecting of parts. Results are known in less than 1-hour, and sensitivity can be increased with the use of black light and matching fluorescent substances in a specially enclosed test area.

BELLING specialises in 2 of the most widely used methods of non-destructive testing: liquid penetrant inspection (LPI), and magnetic particle inspection (MPI).

Liquid penetrant inspection utilises indicative dye to pinpoint surface irregularities on the test subject.
(See BELLING Flaw Chek for more details.)

Magnetic particle inspection uses magnetised particles to effectively detect surface and sub-surface abnormalities on the test subject.
(See BELLING Mag Chek for more details.)