Magnets

The highest performance magnet material available. Very brittle and usually coated or contained in an assembly (see below) because of this and poor corrosion resistance.

• High power
• Low maximum temperature 120 degrees C (although alloys can made that operate up to 180 degrees C)
• Poor corrosion resistance
• Very brittle

Ferrite is the most widely used magnet material. Also know as 'ceramic'.

• Operate at lower temperatures than cast alnico magnets - up to 250 degrees C maximum.
• Economical
• High coercivity - do not lose their magnetic properties easily
• Hard and brittle

A family of materials based on the same mix of elements (Aluminium, Nickel, Cobalt).

• High maximum temperature - up to 550 degrees C.
• Economical
• Very stable
• Good corrosion resistance

Most suitable materials for custom products (can be cast in a range of shapes and magnetic properties can be altered)

Magnets constructed from more than one material.

Usually this consists of a magnet material and a metal coating or housing. This is to add protection to magnet materials and / or to allow a magnet to be constructed with a feature, such as a screw thread, which is not possible using the magnet material alone.

Strontium ferrite magnet material is loaded into a thermo-plastic which is then extruded into strips or calendered into sheets.

Self adhesive coatings or coloured vinyls are added to the non-magnetic face as required.