Manufacturer: TECHNOPLAN

Ferrite Magnets

Anisotropic and Isotropic Types

Anisotropic Type

• This type provides strong magnetic force in a specific direction. However, its magnetic orientation limits its use in other directions.

Isotropic Type

• Although this type provides weaker magnetic force, it produces the same magnetic force in every direction. Therefore, designers can use it in any orientation.

Temperature Characteristics

• Ferrite magnets experience relatively significant thermal demagnetization. They withstand heat better than neodymium magnets; however, their magnetic force decreases considerably above 100°C.
• At temperatures around 200°C, the magnet generally recovers most of its original magnetic force after returning to room temperature. However, while operating at 200°C, its magnetic force decreases to approximately half.

Advantages

• Ferrite magnets offer a low price because iron oxide, their main raw material, is inexpensive.
• In addition, their sintered construction provides excellent corrosion and oxidation resistance.
• Their high coercive force also makes them resistant to demagnetization and provides stable magnetic performance.
• For standard products or large production lots, ferrite magnets are among the most economical magnet options.

Disadvantages

• Ferrite magnets have relatively low mechanical strength and can crack or break like ceramics.
• In many cases, manufacturing requires dedicated molds. Therefore, producing custom specifications in small quantities can be difficult.
• However, manufacturers can produce small prototypes by machining standard thin materials.

We consider the operating environment and application to help you select the most suitable “magnetization method,” “shape,” and “magnet type.” Please feel free to contact us.

Magnetization Method

※ Special magnetization methods may require an additional magnetizing yoke fee (initial cost).

Shape

About SI and CGS Units

“SI” stands for the International System of Units (Système International d’Unités). It established a standardized system to eliminate confusion caused by the use of many different measurement units.

Today, SI serves as the internationally recognized and rational system of measurement. However, the traditional CGS system also remains widely used. Therefore, this catalog may show values using both unit systems.

• Dimensional tolerances depend on the dimensions and shape, but they are generally approximately ±0.1 to ±0.3. We can also provide higher accuracy, so please specify your requirements when necessary.
• We also welcome orders for custom-standard products. Please feel free to contact us even for small-lot production.

※ Please contact us for current stock availability.
※ We also keep many products in stock beyond the standard specifications.
※ Depending on the dimensions, some products may require a longer lead time.

Characteristic Values

※ The values shown in the table are average values only and are not guaranteed.
※ If you have any questions, please contact us for more information!