MagRoll - Wet or Dry Feed Application


The MagRoll is fitted with a high-strength large diameter roll. It has application in separation of minerals such as diamonds, iron ore, andalusite and mineral sands. Diamond material can be processed either wet or dry. Other minerals, depending on physical characteristics, may also be processed wet.


  • Fitted with De Beers’ unique, high-strength ‘SuperRoll’, constructed of large diameter rare-earth (Neodymium-Iron-Boron) permanent magnets
  • SuperRoll design optimised to suit application requirements using mathematical modelling techniques
  • Material path fully enclosed and a dust extraction point provided for connection to an external extraction system
  • Conveyor belt constructed of durable material, self-tracking and easy to adjust and replace
  • Interchangeable magnetic rolls of different strengths to suit specific applications
  • Local touch screen control
  • Fully automated operation with remote control capability
  • Can be linked to plant control system, using hard-wired signals or via the Profinet interface
  • Remote observation of the belt via the built in camera


  • Exceptionally strong magnetic forces generated by the SuperRoll, are ideally suited to difficult applications and enable more efficient separations at higher throughputs than conventional magnetic roll
  • Efficient separations achievable over a wide range of particle sizes from 1mm up to 16mm; 1mm to be assessed on individual basis
  • Material, which may be of high value, remains secure within the machine
  • Dust is contained and may be easily extracted from the machine via a single connection. Dust build-up on the magnet which, over time, would cause loss of performance and belt tracking problems is minimised
  • Long, trouble-free belt life resulting in minimal downtime and low maintenance costs
  • The standard MagRoll frame may be fitted with a low strength Barium Ferrite ‘scalping’ roll to remove strongly magnetic particles prior to further treatment by a second MagRoll fitted with a SuperRoll
  • Readily customised to suit exact user requirements
  • Internal alarm and condition monitoring logic for speedy fault detection and correction