Neodymium Magnet
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Some functions of Neodymium magnets
Neodymium Disc/Cylinder Magnets With Countersunk Holes


Neodymium Disc/Cylinder Magnets With Countersunk Holes Features and Benefits
Strong Magnetic Force: Like all neodymium magnets, these disc or cylinder magnets offer a high magnetic strength, making them suitable for various holding, mounting, and closure applications where a strong, permanent magnetic field is required.
Countersunk Hole: The countersunk hole is designed to accommodate a standard flat-head screw, ensuring the magnet can be securely fastened to non-magnetic surfaces without requiring additional adhesive or mounting methods. This feature allows the magnet’s face to be flush with the mounted surface, providing a clean and seamless appearance.
Versatile Applications: These magnets are widely used in woodworking, cabinetry, DIY projects, retail displays, and as closures for doors, gates, and fixtures. They are also utilized in sensor mounting, robotics, and various industrial applications where a strong, detachable magnetic connection is needed.
Durability: The magnets are typically coated with materials such as nickel, zinc, or epoxy to prevent corrosion and wear, enhancing their durability and lifespan in various environments.
Neodymium Disc/Cylinder Magnets With Countersunk Holes Handling and Safety
Careful Handling: Due to their strong magnetic force, these magnets should be handled with care to avoid injuries from pinching or sudden attraction to metal objects.
Secure Mounting: It’s important to ensure that the screws used fit the countersunk hole properly and that the magnet is mounted on a stable, secure surface to prevent detachment or shifting under load.
Keep Away from Sensitive Devices:? The powerful magnetic field can affect electronic devices, magnetic storage media, and medical devices. Keep the magnets at a safe distance from such items.


and external magnetic fields, can impact a magnet’s performance.


Information Of Our Neodymium Magnet.
What is a neodymium magnet?
A neodymium magnet is a type of rare-earth magnet that is made from an alloy of neodymium, iron, and boron to form the Nd2Fe14B tetragonal crystalline structure. It is the strongest type of permanent magnet commercially available.
How strong are neodymium magnets?
Neodymium magnets are extremely strong for their size. They can lift thousands of times their own weight. The exact strength depends on the grade of the magnet, which can vary based on the manufacturing process.
What are the grades of neodymium magnets?
Neodymium magnets come in different grades, such as N35, N42, N52, etc. These grades indicate the strength of the magnet. The higher the number, the stronger the magnet. Grades may also include letters after the number indicating temperature resistance.
Can neodymium magnets be demagnetized?
Yes, like all permanent magnets, neodymium magnets can be demagnetized if exposed to high temperatures (above their Curie temperature), strong demagnetizing magnetic fields, or if they are physically damaged.
Are neodymium magnets dangerous?
Neodymium magnets can be dangerous if not handled properly due to their strong magnetic force. They can snap together with great speed, potentially causing injuries or damaging the magnets. Small magnets also pose a swallowing hazard, which can be life-threatening.
How do I separate two neodymium magnets?
Separating neodymium magnets, especially strong ones, can be challenging. It's often recommended to slide them apart rather than trying to pull them directly apart. Using a piece of plastic or wood as a lever can also help. Always wear protective gloves to avoid pinching.
Information of our neodymium ARC Magnet
What are neodymium arc magnets?
How do neodymium arc magnets differ from other neodymium magnets?
How strong are neodymium arc magnets?
Are neodymium arc magnets coated?
Do neodymium arc magnets have a specific magnetic orientation?
How should neodymium arc magnets be handled?
Can neodymium arc magnets lose their magnetism?
How are neodymium arc magnets manufactured?
Neodymium Plate ,
Block Magnets With Countersunk Holes
Neodymium Plate, Block Magnets With Countersunk Holes
Features and Benefits
High Magnetic Strength: Neodymium is the strongest magnet material available, enabling these magnets to hold an impressive amount of weight relative to their size. This makes them ideal for various applications, from industrial manufacturing to home DIY projects.
Versatile Mounting Options: The countersunk holes provide a convenient and secure method to mount these magnets flush to a surface using standard flat-head screws. This feature allows for easy integration into designs and practical everyday applications.
Compact and Durable: Despite their powerful magnetic force, these magnets have a compact form factor. They are also coated with a protective layer, usually nickel, to prevent corrosion and wear, ensuring longevity and durability in various environments.
Wide Range of Applications: Suitable for both commercial and personal use, these magnets can be used in manufacturing, workshops, crafts, home improvement projects, and more. They are perfect for creating closures, mounting tools or decorations, and organizing spaces efficiently.
Neodymium Plate, Block Magnets With Countersunk
Holes Handling and Safety
Handle with care to avoid personal injury or damage to the magnets. Neodymium magnets are very strong and can snap together with great force.
Use caution when mounting the magnets to avoid pinching fingers or causing the magnets to shatter by colliding with a hard surface.
Our Some Neodymium Magnets
Neodymium cube magnets
Neodymium Bar Magnet
They come in different sizes strong magnetic fields running along the length of the bar, providing a concentrated magnetic flux.
The magnetic strength is highest at the poles and decreases towards the center. Neo bar magnets are used in various applications, like magnetic closures for doors and cabinets, sensors and magnetic switches.
Neodymium Magnet Balls
Neodymium Ring Magnets
Neodymium Sphere Magnets
Neodymium Disc Magnet
Sintered NdFeB Magnets
Bonded Neodymium Magnets
Other Features of Neodymium Magnets
Flexural Strength of Neodymium Magnet :
Flexural strength is a mechanical property that measures a material’s ability to resist deformation when subjected to bending forces. Neodymium rare earth magnets are made from a brittle material, and thus have relatively low flexural strength. Therefore, subjecting neodymium magnets to bending or flexural stresses is likely to result in cracking or breaking.
Remanence of Neodymium Magnet :
Upon subjecting a ferromagnetic material to a magnetic field presence, it retains some magnetic flux density. This remnant density inherent now to the material describes its remanence. A neodymium magnet’s remanence describes the magnetic field it possesses after magnetization.
For neodymium magnets, remanence dictates overall magnetic strength and performance and is expressed in Tesla (T) or Gauss (G). Since NIB magnets are considered the most powerful, it suffices that their remanence value is high.
The remanence of neodymium magnets varies with grades, with higher-grade magnets having higher remanence values. The higher the remanence value, the stronger the magnetic field that the neodymium magnet can maintain.
Corrosion of Neodymium Magnet :
Corrosion is a chemical process that results in material deterioration from reacting with environmental elements. Neodymium magnets constitute a mixture of neodymium, iron, and boron powders. They are thus susceptible to corrosion thanks to their iron content.
When exposed to moisture or humidity the iron in the magnets can oxidize, leading to the formation of rust. Consequently, manufacturers apply coatings such as nickel, zinc and epoxy to the NIB magnet’s surface for corrosion protection.
These coatings act as a barrier between the neodymium magnet and the surrounding environment, preventing direct contact with moisture and oxygen. The coating choice is influenced by the specific application and the likely environmental conditions.
Temperature Sensitivity of Neodymium Magnet :
Temperature sensitivity of NdFeB magnets refers to how their magnetic properties are affected by changes in temperature. These permanent magnets are known to be sensitive to temperature variations with significant influence on their magnetic performance.
The Curie temperature of neodymium magnets provides a threshold beyond which they undergo a phase transition to a paramagnetic state. These magnets also exhibit reversible changes in magnetic properties within their operating temperature range.
In this case, their magnetic strength can decrease with increasing temperature and increase with decreasing temperature. This reversible change is referred to as the temperature coefficient of remanence expressed as a percentage per degree Celsius.
Additionally, the resistance to demagnetization of neodymium magnets (coercivity) can also be temperature-dependent. Here, you find higher temperatures can reduce coercivity, making the magnet more susceptible to demagnetization.



Neodymium Magnets Manufacturing Process
The primary method used for the manufacture of neodymium magnets is the sintering process which may vary depending on desired grade.
Here’s an overview of the sintering process:
Preparation of the Raw Materials
Preparation of raw materials for neodymium magnets involves careful control of chemical composition and powder characteristics. This ensures the production of high-quality magnets with consistent and reliable magnetic properties.
This step involves obtaining and processing the essential elements of neodymium, iron and boron form their respective oxides. Neodymium oxide (Nd2O3) is the primary source of neodymium derived from rare earth mineral deposits like bastnäsite or monazite.
Iron oxide (Fe2O3) is the source of iron readily obtained from natural sources like hematite, magnetite, or deposits of iron ore. Boron oxide (B2O3) is used to extract boron and is found in boron minerals or in the form of borax.
The individual oxides are weighed and mixed in precise stoichiometric ratios based on the desired magnet composition. The correct mixture ensures neodymium-iron-boron (NdFeB) crystalline phases formation during the sintering process, responsible for its strong magnetic properties.