The Greenwood Magnetic Hump, is an in-line magnet for extracting ferrous metals from pneumatic conveyor systems. The dust-proof galvanised steel hump contains two powerful magnetic plates positioned at right angles to each other.

Materials passing through the conveyor system are evenly distributed through the hump and across the magnets with little turbulence and no blockage. Any unwanted ferrous metals within these materials will be automatically extracted. The hump is fitted with an inspection window to provide visual evidence of the magnets functional efficiency.

Magnetic Hump
Greenwood Magnetic Hump


  • Easily installed
  • Highly effective and consistent performance due to high magnetic flux density
  • Magnetic surfaces are easily cleaned manually
  • Adaptors can be manufactured to suit all sizes of round or square ducts


  • Magnet strength - will extract ferrous metal objects weighing 12 grams against gravity from a distance of 160mm (12 grams is equivalent to the weight of a standard 100mm long nail).
  • Incorporates heavy duty magnetic plates
  • Manufactured in any size or materials to suit customers requirements
  • Specials available including twin-hinged plates (see below):
  • Manufactured in stainless steel where hygiene is imperative - stainless steel rare earth magnetic hump
  • Available with powerful rare earth magnets to extract minute ferrous particles
  • Weld ends can be fitted to the adaptors to suit your connections

Stainless Steel Rare Earth Magnetic Hump

Stainless Steel Magnetic Hump
Stainless Steel Rare Earth Magnetic Hump


  • Polished hygienic stainless steel body
  • Powerful high intensity rare earth magnets
  • Flush stainless steel magnetic surfaces
  • Both hinged magnetic plates with quick-release clamps
Magnetic Hump

Magnetic Hump

A Greenwood In line Magnetic Hump extracts metal contamination from shredded wood which is being used to fuel the boiler.