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Magnetic grids


The square and round magnetic grids filter ferromagnetic (Fe) metal contamination from free-falling, free-flowing bulk materials. The magnets capture magnetic iron, steel and even weakly magnetic particles, such as those from machined stainless steel. Magnetic grids with the most powerful (neodymium) magnetic bars can even capture stainless steel scrapings; these particles are so small that they cannot even be detected by a metal detector.

Magnetic grates are used for applications in the plastics, food, pharmaceutical, ceramics and other industries.

A good approach is to place two grate magnets in a cascade configuration so the product must contact the magnetic bars or at least pass very close to them. This is the technique we use for the Cleanflow magnets.


Suitable for industry: Cattle / animal feeds Ceramic Chemical Minerals (fine) Plastic / rubber Seeds …


Magnetic grids ferrite

Provide a quick indication of whether ferrous contamination is present. Simple, with a low price; not suitable for the food industry. Manual cleaning (quick cleaning not possible).

  • Magnet quality ferrite (Br 4100 gauss)
  • Capture Fe particles from 1 mm
  • Manual cleaning (wipe off)
  • With Ø22 or Ø40 mm magnetic bars
  • Max. temp.  200 °C
Magnetic grids Neodymium

These magnetic grids are suitable for all industries and provide a quick indication of whether even weakly ferromagnetic contamination is present. Very powerful. Quick cleaning through use of extractor tubes.

  • Magnet quality GSN42 (Br 13300 gauss)
  • Capture Fe particles from 30 µm
  • Quick cleaning through use of extractor tubes
  • With Ø23 mm magnetic bars (Ø25 mm extractor tube)
  • Max. temp.  60 °C
Why HNV Magnet?   More than 12 years experience   In-house test centre   According to your requirements
Magnetic grids
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