The magnets over-injected in plastic are sintered magnets to which an over-injection of plastic is applied. They are characterized by the magnetic adaptation of the magnet with the exact shape thanks to the overinjection.
The over-injected magnets are magnetic elements elaborated in the most precise way and with the corresponding dimensions for each application.
Check properties (remanence, strength, coercivity, temperature ...) of magnets on-injected listed table qualities.
Type of material
Magnetic powders: ferrite or rare earthThermoplastics
NdFeB / SmCoFerritaPA6 / PA11 / PA12
From 100ºC to 200ºC
Resistance to corrosion Molding diversity
The mechanical and magnetic values will vary depending on the materials. These materials used in the injected magnets are mainly polyamides (PA6-PA11-PA12).
This type of injected magnets are more resistant to corrosion than sintered materials, for this reason they can be used in most applications without special coatings.
With this type of injection materials maximum temperatures of 100ºC of work are obtained for PA12 and approximately 120ºC for PA6. For working temperatures of 200 ° C, polyphenol is used, which allows good behavior at high temperatures. Epoxy resins that can be used up to temperatures of 120ºC.
The scope of application of the injected magnets is very wide. We manufacture products for different industrial sectors, such as automotive, electronics, robotics ...