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Neodymium Disc Magnet Description

Neodymium disc magnets are round coin-shaped neodymium magnets of varying diameter and thickness. Neodymium (Neo or NdFeb) magnets are permanent magnets, small round magnets, and part of the rare-earth magnet family. Neo magnets have the highest magnetic properties and are the most powerful commercially available magnets today. Because of their magnetic strength, neodymium disc magnets are the preferred choice for many consumer, commercial, and technical applications.

Stanford Magnets specializes in manufacturing and supplying neodymium disc magnets applied in various industrial applications. We have advanced technology, rich experience, and professional engineering technicians in this field.

Looking for a certain size? If you require a specific size that is not available on our website, please contact us for a custom magnet quote.

Neodymium Disc Magnet Specification

Material: Sintered Neodymium-Iron-Boron ( NdFeB )

Size: Custom

Shape: disc

Performance: Customized (N33 N35 N38 N40 N42 N45 N48 N50 N52 ……)

Coating: Nickel/ Customised (Zn, Ni-Cu-Ni, Ni, Gold, Silver, Copper, Epoxy, Chrome, etc)

Size tolerance: ±0.05mm for diameter /thickness, ±0.1mm for width/ length

Magnetization: Thickness Magnetized, Axially Magnetized, Diametrally Magnetized, Multi-poles magnetized, Radial Magnetized. (Customized specific requirements magnetized)

Max. Working Temperature:N35-N52: 80°C (176°F)33M- 48M: 100°C (212°F)33H-48H: 120°C (248°F)30SH-45SH: 150°C (302°F)30UH-40UH: 180°C (356°F)28EH-38EH: 200°C (392°F)28AH-35AH: 220°C (428°F)

Neodymium Disc Magnet Applications

Common applications for neodymium disc magnets include craft & model-making projects, high-performance motors, jewelry clasps, audio equipment, POP displays, science projects, home improvement projects, hanging artwork & much more.

A video about our neodymium disc magnets:

FAQ

What are neodymium disc magnets?

Neodymium disc magnets are strong permanent magnets made from an alloy of neodymium, iron, and boron. They have a flat, circular shape and are part of the rare-earth magnet family, known for their exceptional magnetic strength relative to their size.

How strong are neodymium disc magnets?

The strength of neodymium disc magnets depends on their size, shape, and grade. They are among the strongest types of permanent magnets available, capable of holding materials many times their own weight. Magnet strength is typically indicated by a grade number, with higher numbers representing stronger magnets.

What are the common uses of neodymium disc magnets?

Neodymium disc magnets are used in a wide variety of applications, including in electronics (like headphones, speakers, and hard drives), in medical devices (such as MRI machines), in industrial settings (for motors, generators, and magnetic separation), and in personal or home uses (like jewelry clasps and door catches).

Can neodymium disc magnets be used outdoors?

Yes, but their suitability for outdoor use depends on the type of coating they have. Coatings like nickel, zinc, or epoxy help protect the magnets from corrosion. Epoxy coatings offer the best protection against moisture and are recommended for outdoor use.

How do you handle neodymium disc magnets safely?

To handle neodymium disc magnets safely, use caution to prevent them from snapping together and potentially causing injuries. Always keep them away from children and pets to avoid swallowing hazards, and maintain a safe distance from electronic devices and magnetic storage media to prevent damage.

Do neodymium disc magnets lose their magnetism over time?

Under normal conditions, neodymium disc magnets maintain their magnetism for decades. However, they can lose their magnetism if exposed to high temperatures, strong external magnetic fields, or if they are physically damaged.

Can neodymium disc magnets affect electronic devices?

Yes, the strong magnetic fields generated by neodymium disc magnets can damage electronic devices and magnetic storage media. It's important to keep magnets at a safe distance from such items.

Are neodymium disc magnets coated?

Neodymium disc magnets are typically coated to prevent corrosion. Common coatings include nickel, zinc, and epoxy. The coating protects the magnet from moisture and other environmental factors that could lead to corrosion.

How do I choose the right neodymium disc magnet for my project?

Consider the weight of the object you need to hold, the environment in which the magnet will be used (especially if it's outdoors or in humid conditions), and the space available for placing the magnet. The magnet's grade (which indicates its strength) and its coating (for corrosion resistance) should be appropriate for your application.

How are neodymium disc magnets manufactured?

The manufacturing process includes melting the raw materials (neodymium, iron, and boron), casting the alloy, pulverizing it into a fine powder, pressing the powder in a magnetic field to align the particles, sintering the compacted alloy, and then machining it into the disc shape. Finally, the magnets are coated to prevent corrosion.

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Neodymium Disc Magnet Description

Neodymium Disc Magnet Specification

Neodymium Disc Magnet Applications

FAQ

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