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Magnet prevents powder build-up

Berkhamsted-based Bunting Magnetics Europe has developed a new design of rare earth tube magnet to remove fine iron from dry powders. The Teardrop retains the high surface magnetic field of 12,000 gauss but the shape prevents powder build-up.

Over time this ‘bridging’ can increase and ultimately cause a blockage. It reduces separation performance, increasing the likelihood of metal contamination continuing through the process.

The tube magnet has the point of the tear orientated into the product flow. The surface area on the point is very small and prevents fine powder from collecting. The powder then flows under gravity over the side of the magnet, with any magnetically susceptible materials attracted to the high magnetic force.

These magnetics migrate to the bottom of the magnet, where they are held securely away from the product flow.



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