Magnattack™ Global Blog

What Will Impact The Strength Of A Magnet?

The strength of a magnet, usually measured in gauss or pull, is one factor that determines the effectiveness of a magnetic separator.

In the food industry, equipment is exposed to a variety of different temperatures, environments, products, and other circumstances that can affect the magnet's strength. High-quality magnetic separators can retain adequate strength & effectiveness for many years, however, low-quality cheap systems can lose their strength rapidly - despite being 10,000 gauss or higher upon supply!

Loss of magnetic strength is referred to as 'demagnetization'.

Some of the most common influences of demagnetization include:

  • Temperature,
  • Oxygen absorption,
  • Resonant vibration,
  • Thermal shock, and
  • Rough handling (such as dropping or banging).

Once a magnet's strength is lost, it is lost forever - you cannot 'recharge' a magnets strength as you can a battery.

To learn more about the causes of demagnetization and how to prevent this from occurring, download our free whitepaper here.

Frequent in-house monitoring and testing, and annual HACCP-Endorsed Magnet Validations will help you keep record of your magnet's strength and alert you to any sudden drops. Contact us here to schedule your next HACCP-Endorsed Validation.

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