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Permanent magnet DC motor has its field made up of Permanent Magnets, in general DC motor, the field is made up of electromagnets (i.e. cast iron or steel over which copper windings are placed, when energized from a dc source, it forms electromagnet).
High Performance Magnets and Precision Assemblies. Arnold’s high performance permanent magnets have a wide variety of applications, from electric motors on ships, aircraft, and motorsport cars to pump couplings, batteries, solar panels and NMR Equipment.