Ceramic (Ferrite) Magnets
provide real value because they are inexpensive, moderate in magnetic strength, and they are easily magnetized in a variety of formats. Ceramic magnets offer good corrosion resistance and do not require a coating or plating. They are able to withstand heat reasonably well and can often be found in automotive and engine applications among many others. Ceramic magnets come in a variety of different grades, sizes and shapes including large and small blocks, rings, discs and many other custom cuts and grinds that can be made to your specifications.
The maximum operating temperature for a ceramic magnet is 250°C and the Curie temperature is 450°C. Operating a ceramic magnet above 250°C will begin to result in magnetic strength losses. Operating ceramic magnets in extreme cold (below -20°C) will also result in temporary to permanent losses.
The most common applications for ceramic magnets include:
- Automotive sensors
- Craft projects
- DC motors
- Magnetic separators
- Refrigerator magnets