Bunting unveils teardrop tube magnet

Written by: Bunting Europe | Published:
Bunting's teardrop tube magnet

Bunting has developed a new design of Rare Earth Tube Magnet for use in removing fine iron from dry powders. The Teardrop Tube Magnet retains the high surface magnetic field of 12,000 gauss, but the shape prevents fine powder from building up on the surface.


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. Metal contamination causes damage to delicate processing equipment, as well as affecting the end-quality and purity of the product. Tube magnets are commonly used in the form of a grate magnet, where several tubes form a magnetic separation grid.

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.

Even though the rare earth tube magnet is a sphere, fine non-magnetic material often builds up on the upper-most point of the tube. 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 continuing through the process.

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

The new teardrop tube magnet is available as a single tube or as part of a multi-tube grate magnet assembly.

www.buntingeurope.com



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