National Magnetics Group, Inc. National Magnetics Group, Inc.

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Hard Ferrite (Ceramic 1)

We have an extensive number of tools covering a wide variety of dimensions – call us with your requirements. Close tolerances can be held by grinding. Typical shapes available (for all materials):

  • Rings (can be designed with slots, notches, counter bores, etc.)
  • Discs
  • Rectangles/Squares (can be designed with inner diameters)
  • Custom Shapes

Key features of ceramic magnets:

  • Resistant to demagnetization (high coercive force)
  • Non-conductive
  • Can be magnetized before or after assembly
  • Chemically inert
  • Made from non-strategic raw materials
  • Can be magnetized (ie. axial, diametrical, radial or multi-pole) in any direction

Common applications:

  • Holding (chip collectors, latches, seals, toys, etc.)
  • Electrical-Mechanical (torque couplings for water meters, reed or hall switch actuators, relays, rotors, frictionless bearings for watt-hour meters, instruments, etc.)
  • Electronic and Polarizing (magnetic focusing or deflection,
examples of tooled shapes