Over Band Magnetic Separator
They are used for removing magnetic parts from non-magnetic materials in order to project crushers, mills, processing plants etc. against too much wear and damage. They serve for cleaning non-magnetic bulk goods with iron contamination, for instance cleaning of foundry sand, coal and the like. They are used for recovering magnetic material from ore, steel mill slag etc.
Generally, overband magnetic separators and suspension magnets are installed above conveyor belts, vibratory feeders or chutes. They pick up ferrous metal parts from the bulk goods. In most cases, the magnets can also be installed in an existing installation without much expense.
When using overband magnetic separators and suspension magnets, many factors must be considered for the various applications, and it is impossible to list them all in a brochure. Each application, each material and each kind of conveying involves different problems.
Owing to the shape (demagnetization factor), long, bar-shaped and large iron parts can be better separated than short, cube shaped bulbous and small iron parts.
The efficiency of the overband magnetic separator or suspension magnet depends on the pole size, pole distance, field intensity in the conveyor burden, lines of the material to be separated.
Large burden depths, large lump sizes, sticky or humid material render the separation more difficult.