Ferrite Disc Magnet D70x12mm

Ferrite Disc Magnet D70×12mm is a large-diameter ceramic permanent magnet with a 70 mm diameter and 12 mm thickness, designed for magnetic holding, sensing, and industrial magnetic assembly applications.
Manufactured from strontium ferrite through pressing and high-temperature sintering, forming a hard ceramic structure with stable magnetic properties and natural corrosion resistance. Ferrite magnets are commonly produced with axial magnetization, creating north and south poles on the two flat disc faces.
The disc geometry generates a magnetic field through the thickness direction, allowing magnetic flux to transfer between the two flat surfaces and interact with steel components, sensors, or magnetic circuits in compact assemblies.

Magnetic Performance Characteristics

Stable Magnetic Field Distribution

The D70×12mm disc geometry provides a broad magnetic surface area, allowing magnetic flux to be distributed across the two flat faces. This supports uniform magnetic field generation in magnetic holding systems, motors, and industrial magnetic assemblies.

Resistance to Demagnetization

Manufactured from strontium ferrite material, the magnet exhibits high coercivity that helps maintain magnetic field strength under normal operating conditions and repeated magnetic cycling.

Long-Term Magnetic Stability

The ceramic ferrite structure maintains stable magnetic properties over extended service periods, helping preserve magnetic consistency in equipment designed for continuous operation.

Quality Control System

Assembly Dimension Control

Diameter flatness and thickness consistency are controlled throughout production to support stable installation in magnetic fixtures, motor components, and industrial assemblies. Dimensional variation is monitored to help maintain assembly alignment and contact surface accuracy.

Magnetic Output Consistency

Production batches are monitored for magnetic field distribution and flux stability to reduce variation between individual magnets. Consistent magnetic characteristics help maintain predictable performance after integration into magnetic circuits or holding systems.

Structural Integrity Assurance

The sintering process is controlled to produce a dense ceramic structure with stable mechanical properties. Visual examination and process monitoring are used to identify edge damage, structural cracks, and manufacturing abnormalities that may affect assembly performance.

FAQ

How does magnet thickness affect magnetic performance?

Magnet thickness influences the magnetic circuit and field strength. Increasing thickness can change the magnetic flux path and may affect holding force or magnetic field distribution depending on the application design.

Can this magnet be integrated into steel fixtures?

Yes. Ferrite disc magnets are commonly installed inside steel housings, magnetic bases, and holding fixtures where the steel structure helps guide and concentrate magnetic flux.

What ferrite grades are available for this size?

Different ferrite grades such as Y25, Y30, and Y33 can be produced depending on the required magnetic properties, operating conditions, and assembly requirements.

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