Application · Magnetic-Particle Inspection (MT)
Magnetic-Particle Inspection (MT)
Reveal surface and near-surface discontinuities on ferromagnetic parts.
The inspection problem
Cracks, laps and seams on ferromagnetic parts are often invisible until the surface is magnetized and dusted with fine particles. Consistency depends on equipment, consumables and technique.
Why it matters
For forgings, castings, welds and safety-critical components, MT is often the first, fastest and most sensitive method for surface-breaking flaws.
Which method fits your part?
Every method has a sweet spot and a limitation. Choose based on defect, geometry, throughput and access — not on habit.
Fluorescent MT
When it fits: High-sensitivity inspection under UV light in a controlled environment.
Limitations: Requires darkening; consumable and rinse-water management.
Visible MT
When it fits: Field inspection where UV is impractical.
Limitations: Lower contrast than fluorescent.
Automated MT lines
When it fits: Production inspection of high volumes.
Limitations: Part-specific tooling and process integration.
Principals whose equipment solves this
Selection is driven by the application — not the other way around.
Where we deploy this application
Aerospace
From internal porosity in castings to dimensional verification of complex geometries, EMUS delivers traceable inspection for safety-critical aerospace parts.
Learn moreAutomotive
EMUS helps automotive manufacturers detect defects earlier, qualify processes faster and prove quality to demanding OEM customers.
Learn moreRailway
EMUS supports railway manufacturers and maintenance teams with inspection that catches fatigue cracks, weld defects and wear before they become failures.
Learn moreFoundries
EMUS helps foundries find porosity, shrinkage and inclusions early — reducing scrap, protecting customer relationships and improving the process itself.
Learn moreMetal Processing
EMUS equips metal-processing operations with metrology, material analysis and surface inspection that keep tolerances tight and customers satisfied.
Learn moreEngineering support behind the equipment
- System selection between benches, semi-automatic and automatic lines.
- Consumables and process-control supply.
- Installation, training and technical support.
Talk to an EMUS Engineer
Share your part, defect type and throughput target — we'll match the right method for magnetic-particle inspection (mt).