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Ceramic Ferrite Ring Magnet Description

Ceramic Ferrite ring magnets are disc magnets or cylinder magnets with a plain hole through the center of the magnet. Ceramic Ferrite ring magnet is one of the most cost-effective magnetic materials. It has a fair to good resistance toward corrosion and it can operate in moderate heat.

Ceramic Ferrite Ring Magnet Application

Ceramic Ferrite Ring Magnet is widely used in ammeters, speakers, audio, phones, TV, dynamos, DC permanent magnet motors (used in cars), etc.

Stanford Magnets specializes in manufacturing and supplying Ceramic Ferrite magnets applied in various industrial applications. We have advanced technology, rich experience, and professional engineering technicians in this field. If you require a specific size, please contact us for a quote.

FAQ

What are ceramic/ferrite ring magnets?

Ceramic/ferrite ring magnets are ring-shaped magnets made by pressing and sintering ferrite materials. They are characterized by a central hole, which can be beneficial for various mounting or application needs.

What are the key features of ceramic/ferrite ring magnets?

Cost-Effective: Ferrite magnets are among the most economical types of permanent magnets available. Corrosion Resistance: They exhibit excellent resistance to corrosion, making them suitable for use in various environments without the need for protective coatings. Resistance to Demagnetization: They have good resistance to demagnetization compared to other types of magnets. Temperature Stability: Ferrite magnets can maintain their magnetic properties in a wide temperature range, up to 250°C (482°F).

What applications are ceramic/ferrite ring magnets used for?

Ceramic/ferrite ring magnets are versatile and used in numerous applications, including: Speakers and Microphones: Where they serve as the magnetic core that interacts with the electrical coil to produce sound. DC Motors and Generators: In the rotor or stator parts, where they create a magnetic field for motor operation. Magnetic Bearings and Couplings: To create non-contact connections between moving parts. Sensors: Particularly in applications that require a through-hole for sensor housing or mounting. Educational Purposes: For demonstrations and experiments in classrooms.

How strong are ceramic/ferrite ring magnets?

While not as strong as rare-earth magnets (like neodymium), ferrite ring magnets provide adequate magnetic strength for a wide range of applications, especially where high magnetic force is not critical.

Can ceramic/ferrite ring magnets be customized?

Yes, ferrite ring magnets can be customized in terms of diameter, thickness, and the size of the central hole to meet specific requirements. However, their brittleness limits post-production machining to simple grinding processes.

How should ceramic/ferrite ring magnets be handled and stored?

Handling: Care should be taken to prevent them from dropping or snapping against hard surfaces, as they are brittle and can chip or break. Storage: They should be stored in a dry environment to maintain their integrity. Storing them with opposite poles facing each other can help prevent demagnetization.

Are ceramic/ferrite ring magnets affected by temperature?

Ferrite magnets have a high Curie temperature but can start to lose some magnetism permanently if exposed to temperatures above 250°C (482°F). They are suitable for most applications where extreme heat is not a concern.

How are ceramic/ferrite ring magnets manufactured?

The manufacturing process involves mixing ferrite powder with a binder, pressing the mixture into a ring shape within a magnetic field to align the particles, and then sintering the pressed magnet in a kiln at high temperatures. The magnets are then magnetized using a strong external magnetic field.

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Ceramic Ferrite Ring Magnet Description

Ceramic Ferrite Ring Magnet Application

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