Isotropic and Anisotropic Magnets
Magnets are either isotropic or anisotropic.
Isotropic magnets have magnetic properties equal in any direction.
Anisotropic magnets have a superior performance in some preferred direction or pattern. They are usually three to four times as strong magnetically as isotropic magnets.
Most of our magnets are anisotropic. Our technology enables us to maximise the magnetic strength in the desired direction by orientating the magnet material during the moulding operation. We can orientate magnets axially, radially, conically or in patterns. We can also combine orientations in the same magnet.
Multipole Magnets
The majority of Maxmag's magnets are multipole.
Poles can be equispaced, e.g. 96 poles around a ring, or configured for special purposes, e.g. signalling systems for robotics.
These magnets are used in many applications including drive couplings, small motors and for motion sensing using reed switches, Hall effect or inductive sensors.
Poles can be created on external or internal surfaces of most magnets.
Materials
We have developed a range of materials having different magnetic strengths and physical properties.
Consisting of magnetic micro powders in a polymer matrix, they are designed to maximise specific properties for particular applications - mechanical strength, high electrical resistance, high working temperature, low water absorption and good wear resistance. The choice of polymer controls these properties.
Our magnetic materials are based on Strontium or Barium Ferrite.
Our material development is ongoing to meet our customers' varied requirements for new permanent ('hard') magnetic materials and also for non-permanent ('soft') magnetic materials.
'Soft' magnets are used in magnetic interference shielding and in certain instances as replacements for steel laminate stacks where the ability to mould accurate three-dimensional shapes has distinct advantages.
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