How to Tell When Your Magne-Tech MPI Unit Needs Repair or Rebuild Before It Fails Mid-Inspection

In magnetic particle inspection, trust in the equipment matters just as much as technique. When your Magne-Tech MPI units begin to drift from peak performance, the warning signs often appear long before a breakdown brings production to a halt.

Understanding how to recognize those early signals can make the difference between a smooth inspection day and a costly interruption. Magne-Tech MPI units are built to work hard, but like any precision system, they rely on consistent electrical output and stable components to perform correctly. When those elements begin to wear, accuracy is the first thing at risk!

Here are some subtle changes that your Magne-Tech MPI unit may need to repair or a full rebuild:

• Unsteady Lighting – Inspection lights that pulse, dim, or behave unpredictably can point to internal electrical instability.
• Fluctuating Meter Readings – Ammeter readings that jump, drift, or fail to settle often indicate worn electronics or compromised connections.
• Reduced Holding Strength – Clamping systems that struggle to maintain firm contact may signal mechanical fatigue or power delivery issues.
• Leaks or Pooling – Unexpected seepage or pooling near the inspection area can suggest tank wear or seal failure.
• Cable Deterioration (Frayed or Damaged) – Cracked insulation, stiff cords, or exposed wiring increase both safety risks and performance inconsistency.
• Uneven Particle Response – When magnetic particles no longer collect evenly along discontinuities, magnetization strength may be declining.

Each of these signs alone may seem minor, but together they are a clear indication that your Magne-Tech MPI unit needs to be looked at.

At Scientific Instruments, experience is not just measured in years, but in the trust earned from professionals who rely on precision every day. For more than 35 years, we have been a recognized leader in rebuilding and refurbishing Magne-Tech MPI units. If your unit is showing one or more of the above signs, do not wait until it fails inspection! Contact us today.