What Is a Magnetic Roller Separator for Mineral Processing?

A magnetic roller separator is a dry magnetic separation machine used to separate magnetic or weakly magnetic particles from non-magnetic mineral materials.
In mineral processing, raw materials may contain unwanted iron-bearing, ferromagnetic or weakly magnetic particles. These impurities can affect the quality, colour, performance or suitability of the final mineral product.
A magnetic roller separator provides controlled separation by passing the material through a magnetic field.
The feed material is introduced into the separator in a controlled and relatively uniform layer. As the material approaches the magnetic roller, particles with magnetic susceptibility experience attraction toward the magnetic field, while non-magnetic particles follow a different trajectory.
An adjustable splitter is used to divide the resulting material streams.
This makes a magnetic roller separator suitable for applications where the objective is to:
Remove magnetic impurities
Reduce iron-bearing contamination
Improve mineral purity
Recover magnetic material
Separate magnetic and non-magnetic fractions
Upgrade suitable industrial minerals
Improve the quality of mineral-processing products
The exact performance depends on the characteristics of the mineral being processed.