Home Products Applications Contact About Us

Magnets & Related Products - Special Rare Metals & Alloys - High Power Batteries
Magnets - Magnet Systems - Magnet Raw Material
Cast/Sintered - Bonded

Bonded Magnets

Plastic Bonded Magnets
Ferrite, SmCo, or NdFeB mixed with plastic binder formed by compression or injection process, allow magnets in complex shapes and multipole magnetization.
General Information: Most of the magnet materials can also be mixed up with plastic as a binder, like PA6, PA12 or PPS. For Plastic ferrite, for example, the advantages are production of complex shapes, low tolerances, multipole magnetization or orientated polar magnetization. But the magnetic performance of course suffers, which has to be taken into account in the design. The manufacturing processes are either pressing or injection.
For high power bonded magnets, SmCo and NdFeB can be combined with plastic, similar as for bonded ferrite, and formed to magnets with all above advantages and disadvantages, but with a higher price than bonded ferrite. Such magnets, like segments and rings are mainly used for stepping motors, DC-motors and sensors.
Applications: There is also a wide range of application, like stepping motor, coupling systems, sensors for motion control, etc.
Data Sheets: Plastic Bonded Ferrite
Plastic Bonded Samarium Cobalt
Plastic Bonded Neodymium Iron Boron
Rubber Bonded Magnets
Ferrite or NdFeB powder mixed with rubber or elastomere as binder provides a low cost or strong flexible magnet in all kind of shapes, like foil, sheet, strip, band and profile.
General Information: Ferrite material can also be mixed with rubber. Flexible magnet materials are manufactured through both extrusion and calandering depending on required size. Standard grades of flexible materials have maximum energy products of 0.6MGOe to 1.6MGOe. Whereas, the advantage is having a flexible magnet, with the processes of calandering, pressing or extrusion; the disadvantage is low magnetic force.
Temperature Effects: The magnetic properties of flexible magnets have a linear degradation to temperature similar to that of ferrite magnets. A larger factor is the binding agent used to make the magnets flexible. These binding materials usually begin to flow at 121° Centigrade.
Applications: Flexible magnets are used in a wide array of applications from magnetic signs, toys, gaskets, games, CRT focusing, displays, door and cabinet closures, tools, and business cards to name a few. Strips, tapes, bars, sheets, rings, etc. are used for stepping motor, sensor, advertizing, toys, didactic means for offices and schools.
Data Sheets: Rubber Bonded Magnets
All Content Copyright © 2013, HME - Technologies GmbH. All rights reserved.