Integrated Magnetics stocks and supplies standard and premium grades of all commercially available permanent magnet materials. We specialize in building and manufacturing custom magnets, magnetic assemblies, and custom engineered electrical machines to meet our customers’ exact specifications.Request a quote on the custom permanent magnets or magnetic assemblies you need or contact us today to discuss your specialty project.
Neodymium Iron Boron Magnets
- Most powerful (highest energy product) class of magnet material commercially available.
- High Br, relatively high Hc, high BHmax.
- Lower cost than samarium cobalt.
- Temperature sensitive.
- Susceptible to oxidation.
- With careful design, some grades will function up at temps up to 200°C (392°F.
- Energy product ranges from 10 MGOe to 53 MGOe
- Relative cost Index (by weight): 40
Samarium Cobalt Magnets
- High Br, high Hc, relatively high BHmax
- Higher in cost than neodymium iron boron
- Highly resistant to oxidation
- Most grades function well at temps up to 300°C (572°F)
- Energy product ranges from 18 MGOe to about 33 MGOe
- Relative cost index (by weight): 60
- High Br, low Hc, BHmax in the 5 MGOe range
- Most temperature stable of all magnet types
- Functional with no significant performance loss in temps up to 500°C (932°F).
- Relatively easily demagnetized by opposing magnetic fields
- Excellent oxidation resistance
- Energy product ranges from 1.4 MGOe to 7.5 MGOe.
- Relative cost index (by weight): 25
Ceramic Magnets (Ferrite Magnets)
Composed of barium or strontium ferrite, these permanent magnets exhibit good resistance to demagnetization, and are the lowest cost materials available today. Sintered ceramic (ferrite) magnets are hard, brittle, and used extensively in consumer products. Ceramic (ferrite) magnets are commonly used as refrigerator magnets.
- Energy product ranges from 1.1 MGOe to 4.5 MGOe
- Relative cost index (by weight): 1.5
A special form of ferrite or rare-earth materials. Flexible magnet materials are manufactured by binding ferrite or rare earth magnet powders in a variety of carriers, such as vinyl. This material can be bent, twisted, coiled, and otherwise easily fabricated.
- A variety of grades are available, from 0.6 MGOe, to about 1.6 MGOe in ferrite magnet materials, and up to about 6 MGOe in rare earth magnet materials.
- Relative cost index (by weight, for bonded ferrite): 1.
Magnet Material Comparisons
Relative Cost by Weight
Relative Cost by BHmax
Difficulty to Machine
Maximum Operating Temperature
Contact Us for High Quality Permanent Magnets & Magnetic Assemblies
With proven manufacturing techniques and high quality materials, Integrated Magnetics can deliver the perfect magnetic products for your unique application. Request a quote or contact us for custom magnets and precision magnetic assemblies.