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Ceramic (Ferrite) Magnets

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Highly Effective, and Cost-Efficient

Ceramic magnets (also known as "Ferrite" magnets) are part of the permanent magnet family, and the lowest cost, hard magnets available today. Composed of strontium carbonate and iron oxide, ceramic (ferrite) magnets are medium in magnetic strength and can be used at fairly high temperatures. In addition, they are corrosion-resistant and easy to magnetize, making them the popular choice for a wide range of consumer, commercial, industrial and technical applications.

Magnetshop.com carries a large inventory of ceramic disc, block (rectangular & square), and ring and round cup magnets, available for immediate purchase in a wide range of shapes and sizes. We can also custom manufacture ceramic magnets to fit your exact specifications, just let us know what you are looking for by sending us a request for quote or contact us today, and we'll work with you to determine the most economical solution for your project.

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Features & Characteristics of Ceramic Magnets

Ceramic magnets are medium in magnetic strength, inexpensive and can be used at fairly high temperatures, so they are a popular choice for all types of consumer, commercial, industrial and technical applications. (top)

Ceramic Magnets Technical Data

Ceramic Magnets Technical Data
Grade: 5
Shapes: Discs & Cylinders
Magnetization: Axially Magnetized
Br: 3,950 Gauss
BHmax: 3.60 MGOe
Hc: 2,400 Oersteds
Hci: 2,450 Oersteds
Max Operating Temperature: 592ºF/300ºC
Curie Temp: 842ºF/450ºC
Density (lb/in3): 0.178

Magnet Ratings

Magnets are typically rated by their residual induction, coercive force & maximum energy product. Click here for more details (section 4.0). This refers to the maximum strength that the magnetic material can be magnetized to. (top)

Ceramic Magnet Grades & Shapes

Ceramic Grades 5 (most commonly used) through 8 are available in disc, block(rectangle & square) and ring shapes, and can be custom manufactured to meet your specialty requirements. (top)

Temperature Considerations for Ceramic Magnets

Ceramic magnets can be used at fairly high temperatures, although their magnetic properties drop with temperature. At 175°C (350° F), approximately 75% of their room temperature magnetic properties are retained. (top)

Common Applications for Ceramic Magnets

‚ÄčMagnets for LiftingCrafts & Model MakingClassroom Projects & Science ExperimentsCeramic Fridge MagnetsCeramic Button Magnets

Ceramic (Ferrite) magnets are the lowest cost hard magnets available today, they have excellent resistance to oxidation and do not typically require additional protective coatings or finishes. They are the preferred choice for all types of consumer, commercial and industrial applications. Common applications for ceramic magnets include:

  • School Projects
  • Loud Speakers
  • Guitar Pick-Ups
  • Eddy Current Devices
  • Breaks & Clamps
  • Motors & Generators
  • Switches
  • Relays
  • Security Systems
  • Sweeper Magnets
  • Crafting Projects
  • Model Making
  • DIY Home Projects
  • Science Experiments
  • Classroom Displays
  • Store Signage
  • Office Organization
  • Home Decor
  • Retail Displays
  • Lifting Machinery
  • Fridge Magnets
  • Apparel
  • Whiteboards
  • Promotional Gifts & more
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Ceramic Magnets Manufacturing Methods

Ceramic magnets require special machining techniques, and should be machined in an “un-magnetized” state. We are fully equipped to machine these materials to your specifications, just let us know what you are looking for by sending us a special request. Ceramic magnets do not need to be protected for surface rust. A thin film of magnet powder on the surface is common. (top)

Ceramic Magnets Bonding Methods

Ceramic magnets are often assembled into products using "superglues" such as Loctite 325 or other epoxies. Please always ensure that bonding surfaces are clean and dry prior to bonding. (top)

Safety Precautions for Ceramic Magnets

Ceramic Magnets are hard & brittle, and they can chip or break if dropped or snapped together, so please take special care when handling these magnets! (top)

Ceramic Magnet Custom Orders

We can custom manufacture ceramic magnets to exact specifications using our in-house manufacturing facilities and experienced team of engineers. Contact us or send us a request for quote and we'll help you determine the most economical solution for your project. For more technical applications, our sister company, Integrated Magnetics specializes in custom magnets & magnetic assemblies. (top)

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