Ensure Peak Magnetic Performance with Certified Magnet Audits
At MPI, we understand that magnetic separators are a critical part of your product integrity and metal control strategy. That’s why since 1982, we’ve been providing professional magnet certification audits as a trusted service to manufacturers across a range of industries.
No matter the age, condition, application, or brand, our team will test every magnet in your facility to ensure your systems are operating at full strength and in compliance with quality and safety standards. In addition, we will review the overall metal control strategy - including the overall number of magnets, critical control points, and cleaning frequencies - to identify any gaps that could be allowing metal into your product stream.
What to Expect from an MPI Magnet Audit
When you request an audit, a Certified Magnet Auditor will travel to your facility and perform the following:
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Visual inspection of every magnetic separator
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Magnet strength testing using NIST-certified pull test equipment and Gauss meters
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Evaluation of your metal control program for compliance with internal and external quality standards
After your audit is complete, you will receive a detailed, easy-to-understand report that includes:
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Photos of each magnetic separator for easy identification
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A color-coded rating system that clearly identifies areas of concern
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Documentation that supports HACCP compliance and corporate quality programs
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If available, year-over-year trend data and maintenance forecasting tools
Certified Magnet Auditor Program
Launched in 2016, MPI’s Certified Magnet Auditor Program ensures consistency, accuracy, and standardization across all audits. All MPI auditors are HACCP certified and familiar with the regulatory and quality standards of food, pharma, recycling, and other critical industries, and provide hands-on training to quality professionals on your team, or to regional representatives at our partnering organizations to ensure local access to magnet testing.
The MPI Rating System
| Criteria | Description | Green | Yellow | Red | White |
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| Correct Magnet | Assesses if the right type of magnet is in use for the application | Correct magnet, no action required | Consideration for improvement | Separator should be replaced | NA |
| Magnet Strength | Verifies if the magnet meets baseline strength for the application | At or above baseline | Slightly below (<20%) | Significantly below (>20%) | NA |
| Tramp Metal Saturation | Determines how much metal buildup was present during testing | Minimal saturation | Moderate saturation | Full saturation | Magnet cleaned prior to testing |
| Maintenance | Evaluates the separator's current condition and need for servicing | No maintenance needed | Maintenance recommended | Immediate attention required | NA |
Realtime Metal Saturation Alerts and Data Capture
Intelligent magnetic separation may be the right choice for your facility.
Intell-I-Mag® is a technology platform that pairs sensors within a magnetic separator with an app or computer-based dashboard that alerts an operator when the magnet has reached their designated level of saturation. This allows the operator to assess a magnet’s need for cleaning through the dashboard, without shutting down the processing line. This eliminates unnecessary maintenance stoppages and reduces lost production time, while offering the same protection against metal contamination as traditional magnetic separators.
Why Schedule a Magnet Audit with MPI?
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Reliable Data - Easy-to-read reports with clear visuals and action steps
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HACCP Support - Meet quality and food safety documentation requirements
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No Internal Equipment Needed - MPI provides all certified testing tools
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Consistent Reporting - Enables trend tracking and proactive maintenance
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Expertise You Can Trust - Backed by decades of experience and certified professionals
Schedule Your Magnet Certification Audit Today
Ensure your magnetic separators are doing their job—protecting your process, your product, and your reputation.
Contact Us to schedule your audit or learn more about MPI’s magnet testing services.