SPECIALIST EQUIPMENT
MODERNISINGMILL LINING A novel mill liner installation reduces costs, eliminates maintenance and provides a safer work environment S
ince the Magnetic Mill Liner (MML) was invented in 1989, more than 600 mills have been retrofitted with the solution worldwide. Te most
recent success story is the Nexa Resources installation in the Central Andes of Peru. Te MML consists of a permanent magnet embedded in a high chromium alloy moulding. Te magnet was selected carefully for high quality and superior holding power. Te face of the liner is magnetised and accumulates ball chips and
ferromagnetic materials to become a 1 to 1.5in-thick layer. Te MML is protected by the bed of ball chips and magnetic minerals that combine to create a solid protection layer. Te ball chips are small and have no grinding properties while staying magnetically charged. Te MML uses magnetic minerals and ball chips, which consistently replenish themselves for continuous protection of the liner and shell. Te solution was specifically designed to accommodate Nexa’s working conditions
to achieve optimum performance, and even the warranty was based upon matching the liner to the application.
INSTALLATION Te installation process for the MML was simple, easy and safe – especially when compared with conventional metallic or rubber liners. Te heaviest MML piece is about 45 pounds. Te MML can be installed with charge in place, saving time and labour for installation. Tere is no need
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