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Neodymium Cylinder Magnet Description

Neodymium cylinder magnets are also known as neodymium rod magnets. They have straight parallel sides and a circular cross-section and are measured according to the Diameter (D) x Height (H). Neodymium (Neo or NdFeB) magnets are permanent magnets and part of the rare-earth magnet family. Neodymium cylinder magnets have the highest magnetic properties and are the most powerful commercially available magnets today. Because of their magnetic strength, neodymium cylinder magnets are the preferred choice for many consumer, commercial, and technical applications.

Stanford Magnets specializes in manufacturing and supplying neodymium cylinder 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 Cylinder Magnet Specification

Material: Sintered Neodymium-Iron-Boron.

Size: It will be different according to the client’s requirements;
Magnetic property: From N35 to N52, 35M to 50M, 35H to 48H, 33SH to 45SH, 30UH to 40UH, and 30EH to 38EH; we can manufacture the full range of Sintered Nd-Fe-B products including the high energy magnets such as N52, 50M, 48H, 45SH, 40UH,38EH,34AH, (BH)max from 33-53MGOe, maximum working temperature up to 230 Degrees Centigrade.
Coating: Zn, nickel, silver, gold, epoxy, and so on.

Neodymium Cylinder Magnet Advantages

a. Chemical Composition: Nd2Fe14B: Neodymium cylinder magnets are hard, brittle, and easily corrode;
b. Moderate Temperature Stability: Neodymium cylinder magnets lose -0.09~-0.13%of Br/°C. Their working stability is under 80°C for low Hcj Neodymium magnets and above 200°C for high Hcj Neodymium magnets;
c. Excellent Strength Value: The highest(BH)max reaches up to 51MGOe;

Neodymium Cylinder Magnet Applications

Sensors, speakers, brushless motors, DC motors, step motors, wind turbines/wind generators, magnetic hooks, magnetic filters, cup magnets, automobiles, magnetic coupling, magnetic chuck, permanent magnetic lift, and so on.


What are neodymium cylinder magnets?
Neodymium cylinder magnets are strong permanent magnets made from an alloy of neodymium, iron, and boron, shaped into a cylindrical form. They belong to the rare-earth magnet category and are known for having the highest magnetic properties of all permanent magnets available today.
How strong are neodymium cylinder magnets?
The strength of neodymium cylinder magnets varies depending on their size and grade. They can range from grades N35 up to N52 and beyond, with N52 being among the strongest. The strength is measured in terms of magnetic field density and magnetic pull force, with these magnets capable of supporting thousands of times their own weight under ideal conditions.
What applications use neodymium cylinder magnets?
Neodymium cylinder magnets are used in a wide array of applications, including electronics (such as hard drives and headphones), medical devices (like MRI machines), motors and generators, jewelry clasps, and various holding and lifting devices. Their strong magnetic fields make them ideal for applications requiring compact yet powerful magnets.
Can neodymium cylinder magnets be customized?
Yes, neodymium cylinder magnets can be customized in terms of size, grade, and magnetic orientation to suit specific applications. Custom coatings can also be applied to protect against corrosion or to meet specific environmental conditions.
How do you handle neodymium cylinder magnets safely?
Handling neodymium cylinder magnets requires caution due to their strong magnetic pull, which can cause them to snap together unexpectedly. It's important to wear protective gloves to prevent pinching and to keep the magnets away from electronic devices and magnetic media, as their strong fields can cause damage or data loss.
Are neodymium cylinder magnets coated?
Yes, to prevent corrosion, neodymium cylinder magnets are typically coated. Common coatings include nickel, zinc, and epoxy. These coatings not only protect the magnet from corrosion but also can provide a smoother finish, which can be beneficial in certain applications.
Can neodymium cylinder magnets be used outdoors?
While neodymium cylinder magnets can be used outdoors, their resistance to environmental conditions depends on the type of coating. Epoxy coatings offer better protection against moisture and corrosion, making them more suitable for outdoor use compared to other coatings like nickel.
How do neodymium cylinder magnets affect electronic devices?
Neodymium cylinder magnets can interfere with or damage electronic devices and magnetic storage media due to their strong magnetic fields. It's advised to keep them at a safe distance from such devices to prevent any potential damage.
Do neodymium cylinder magnets lose their magnetism over time?
Under normal conditions and temperatures, neodymium cylinder magnets maintain their magnetism for decades. However, exposure to high temperatures, strong external magnetic fields, or physical damage can reduce their magnetic performance.
How are neodymium cylinder magnets manufactured?
The manufacturing process involves melting the raw materials, casting, pulverizing the alloy into a fine powder, pressing the powder in a magnetic field to align the particles, sintering to fuse the particles together, and then machining the material into a cylinder shape. The final step is applying a protective coating to the magnet.

Protocols and articles

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History and Uses of Neodymium Magnet
How to Avoid Neodymium Magnet Corrosion?
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Surface Treatment of NdFeB Magnets - Electrophoresis


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