Teardrop tube magnet

A Teardrop Tube Magnet has been developed by Bunting Magnetics Europe that retains a surface magnetic field of 12,000 gauss. The design removes fine iron from dry powders, but because of its shape prevents build up on its surface.

Even though the Rare Earth Tube Magnet is a sphere, fine non-magnetic material often builds up. Over time this ‘bridging’ can increase and ultimately cause a blockage. The build-up always reduces the separation performance, increasing the likelihood of metal contamination through a process.

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

Tube Magnets are used extensively in the processing industry to capture magnetic susceptible foreign bodies, including screws, nuts, bolts, and small iron shards, in both dry and wet applications.

Rare Earth Magnets are constructed out of Neodymium Iron Boron magnet slugs. These produce the highest permanent magnetic field and are used to separate very fine iron and weakly magnetic stainless steel from solids and liquids.

Author
Justin Cunningham

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