Over Molded Injection Magnets are over molded with a very thin layer of polymers like POM, Nylons, PPS etc. to either shield them from dust, grease, oils & chemicals OR for some functional performance of the magnet assembly. MPCO Magnets provides precision engineered range of over molded magnets which are available in dimensionally accurate designs which make them ideal for miniaturization.
We manufacturing Bonded Magnets and Magnet Assemblies. We source Other Magnets like, plastic magnets, China magnets, bonded mangets, injection magnets, polymer bonded magnets, meter magnets, sensor magnets and Magnet Assemblies from reliable vendors who make use of advanced manufacturing techniques to fabricate the magnets. High Temperature Insert Injection Molded Magnets
Magnets will become demagnetized by the high-heat of injection molding. High temperature magnets are available but are more expensive and too brittle for many applications. MPCO Magnets offers a unique post-mold magnetization process that allows our neodymium magnets to be over molded before magnetization. The finished parts are then taken to one of our specialized magnetization machines to be fully charged.
Characteristics
The polymer over molding helps the magnet to be used for tight fit, snap fit etc. kind of fitments over the mating parts.
Due to the good wear & lubricating characteristic of these polymers, over molded magnets can be used where they can slide continuously on another shaft.
Magnets can be over molded with certain polymer foams to reduce the specific gravity and create float assemblies which buoyant.
Most of the cases magnets are over molded by polymers to shield them from environmental challenges and make them weather proof and durable.
Over molding ensures ease in cleaning of the magnets in certain applications like filters, drain plugs etc. where the magnet may be required to be removed and cleaned at certain intervals.
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