Magnetic Equipment Calibration Services

Magnetic separation plays a vital role in food safety. If magnets are not performing as intended, metal contamination risks increase and audit compliance can be compromised. MWS provides professional gauss calibration services for magnetic testing equipment, helping you demonstrate control, traceability and due diligence.

We test magnetic rods, sieve magnets and other magnetic assemblies used within food production and quality assurance environments.

Nos équipes de service et d'étalonnage ont des années d'expérience dans le secteur et travaillent depuis le siège social à Leicester et le centre de service du nord-est situé dans le comté de Durham. 

Why Magnet Testing Matters

Food safety standards require that the type, location and strength of magnets are fully documented. Procedures must be in place for inspection, cleaning, strength testing and integrity checks, with clear records retained.

Regular gauss testing confirms that:

• Magnets are delivering the required field strength
• They are suitable for their product and process location
• Housings and assemblies remain intact
• Records are available for audit and inspection

Understanding Magnet Strength

Different applications require different strengths.

Ferrite, or ceramic, magnets typically measure between 1500 and 2000 gauss. These are commonly used in primary production stages to capture larger metal fragments.

Rare earth magnets can reach up to 12000 gauss and are often installed in secondary or final stages where fine metal particles must be removed.

Product type also matters. For example, some products such as flour may contain iron additives. In these cases, magnet strength should generally not exceed 7000 gauss to avoid removing essential content.

Selecting the correct strength is about suitability, not simply maximum power.

How We Calibrate

Our engineers use a certified gauss meter to measure magnetic field strength. The meter is calibrated annually, and a copy of its calibration certificate can be supplied.

Each report includes:

1. Required magnet strength for the location
2. Magnet type
3. Actual gauss reading
4. Pass or fail status
5. Condition assessment of the magnet and housing
6. Photographs for clear identification

Where issues are identified, we highlight any remedial action required.

Standards and Compliance

Magnet calibration is carried out in line with relevant parts of HACCP 0909MAGSEP 1-2010 International Food Safety Standard. This supports documented control procedures and audit readiness.

Service and Pricing

Magnet testing is charged on a half-day or full-day basis, depending on the number of magnets and site location.

MWS can also calibrate additional test, measurement and process equipment such as temperature, humidity, pressure, and more, as well as all types of weighing equipment.

If you need clear, documented evidence that your magnetic systems are performing as required, MWS can help. Get in touch to arrange a visit or discuss your requirements.