To injection mold a magnet has superior advantages in designing an optimized design as complex shape, mechanical tolerances and magnetic pattern has unlimited possibilities.
The method requires a customized mold tool for each magnet. The magnets can be Isotropic or Anisotropic depending on material required magnetic properties or alignment.
Sura Magnets are specialized in the field of injection molding of magnets and have long experience in 2-component molding.
Rare Earth magnet materials such as NdFeB, SmCo and SmFeN can molded as well as Ferrite material.
The magnet powder must have a binder to be able and be molded and polymers as PA6, PA12 and PPS is normally used.
The density of these magnets is lower compared to the magnets produced by sintering. This results in lower magnetic values.