Neodymium magnets are a member of the rare earth magnet family and are the most permanent magnets in the world. They are composed of neodymium (Nd), iron (Fe) and boron (B) and are prone to rusting if exposed to these elements. To protect the magnets from corrosion and to strengthen the brittle magnet material, the magnets are often coated with nickel.
Neodymium (neo) magnets are part of the rare earth magnet family and are popular for their high strength in terms of compact size and weight and high coercivity (they are permanently magnetised for use at temperatures below 590°F). the stronger the pulling power. Neodymium magnets are available in a variety of shapes, sizes and grades
Discs
Discs have a larger diameter than thickness.
Rods
Rods have a length equal to or larger than the diameter.
Plates
Plates include rectangles and thin square magnets.
Cubes
Cubes have equal length, width, and thicknes.
Rings
Rings and tubes have straight wall through holes
AH has a large stock of approved neodymium rare earth magnets available for immediate purchase online at bulk discount prices. We offer neodymium discs, rectangular or square neodymium blocks, bars, rings and rods in a variety of sizes, premium grades and finishes. Not all of our neodymium magnets are shown on this website, so if you don't see what you are looking for, please contact us today.
The iron in magnets can rust if exposed to the elements. To protect magnets from corrosion and to strengthen fragile magnet materials, we recommend that magnets are coated with nickel. Other coating options include zinc, tin, copper, epoxy, silver and gold.
Neodymium magnets must be handled with care to avoid injury and damage to you and the magnet. Please remember the following when handling neodymium magnets.
Fingers and hands can become heavily trapped between the two attracting magnets. It is important to keep them out of reach of small children.
Neodymium magnets are brittle and may flake, break or shatter if allowed to bang together.
Goggles should be worn.
Neodymium magnets can also damage items such as credit cards, magnetic ID cards or video tapes.
Do not place neodymium magnets near electronic devices. It is vital that they are not placed near people with pacemakers or similar medical aids.
Neodymium magnets should not be processed. The material is brittle and prone to chipping and cracking, and therefore cannot be processed well by conventional methods. Processing magnets generate heat which, if not carefully controlled, can demagnetize the magnet and even ignite the material which is toxic when burned.
We can also custom manufacture neodymium magnets to meet your exact specifications using our in-house global manufacturing facilities and team of experienced engineers. If you have special requirements, send us a request for quotation or contact us and we will help you determine the most economical solution for your project. Our sister company Integrated Magnetics is a specialist in the manufacture of custom magnetic assemblies for technical applications.
Neodymium magnets are used in a variety of applications and are perfect for small parts and assemblies. Common applications range from craft and model making projects to high performance motors, medical instruments, audio components, POP displays, science projects, home improvement projects, hanging artwork and more. The following are some of the commonly used industries
Electronics - Neodymium magnets are used in mobile phones, speakers, headphones and many more everyday electronics.
Industrial applications - alternators, flow meters, linear actuators, gyroscopes.
Clamps - A few neodymium blocks or cubes are perfect for holding metal sheets in place. This is most common when used for welding, drilling or machining.
Green energy - hybrid and electric cars use neodymium magnets, as do wind turbines.
Healthcare - Pacemakers and magnetic resonance imaging (MRI) machines use neodymium magnets.
Oil filters - ever wondered how to filter out metal debris from motor oil? Neodymium magnets!
Stud finders - these magnets are strong enough to find hidden nails and other metal parts inside walls.
Magnetic Therapy - Neodymium magnets are perfect for those who use magnetic therapy as a healing tool. There are different sized blocks available depending on the size of the body being treated.
Closers - Need to close a brochure, box, flipchart or other presentation? Neodymium magnets are perfect for the job.
Toys - You've probably played with magnets at some point in your life. They could be neodymium magnets! They are often used as entertainment.
Re-magnetisation - Neodymium magnets can be used to restore magnetisation to other types of magnets, such as Alnico horseshoes and other bar magnets.
Metal detectors - Did you know that neodymium magnets are used in metal detectors?
What are neodymium magnets?
Neodymium magnets are strong permanent magnets and are part of the rare earth magnet family. They are also known as "NdFeB", "Neo" or "NIB" magnets because they are mainly composed of neodymium (Nd), iron (Fe) and boron (B).
Why are neodymium magnets so strong?
Neodymium magnets are considered strong because they have a high saturation magnetisation strength and resist demagnetisation. Although they are more expensive than ceramic magnets, strong neodymium magnets pack a powerful punch! A major benefit is that you can use smaller sized NdFeB magnets to achieve the same goals as larger, cheaper magnets. This may reduce the overall cost, as the overall device size can be reduced
How long do neodymium magnets last?
If the physical properties of the neodymium magnet remain intact and are not affected by demagnetization (e.g. high temperatures, reverse magnetic fields, radiation, etc.)
What safety precautions should I consider when using neodymium magnets? Neodymium magnets are hard, quite brittle and have a high magnetic strength. They can snap together with great force, so make sure that anyone handling these magnets knows to handle them carefully to avoid injury. They can also break or fracture if dropped or stuck together, so please take extra care when handling these powerful magnets!
Things to know when using neodymium magnets
The iron in magnets can rust if exposed to the elements. To protect the magnets from corrosion and to strengthen the fragile magnet material, we recommend that the magnets are coated with nickel. Other coating options include zinc, tin, copper, epoxy, silver, and gold.
Neodymium magnets must be handled with care to avoid injury and damage to you and the magnet. Please remember the following when handling neodymium magnets.
Fingers and hands can become heavily trapped between the two attracting magnets. It is important to keep them out of reach of small children.
Neodymium magnets are brittle and may flake, break or shatter if allowed to bang together.
Goggles should be worn.
Neodymium magnets can also damage items such as credit cards, magnetic ID cards or videotapes.
Do not place neodymium magnets near electronic devices. It is vital that they are not placed near people with pacemakers or similar medical aids.
Neodymium magnets should not be processed. The material is brittle and prone to chipping and cracking, and therefore cannot be processed well by conventional methods. Processing magnets generate heat which, if not carefully controlled, can demagnetize the magnet and even ignite the material which is toxic when burned.
Do you want to buy large neodymium magnets? Explore the best variety of bulk neodymium magnets on Global Selling to find the perfect item for you!
AH, as a manufacturer of neodymium magnets, can give you access to factory discount prices on these bulk neodymium magnets and you can find reliable suppliers for your future wholesale purchases.
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