Rare Earth Magnets from Neodymium (NdFeB) - Strongest permanent magnets
Neodymium Iron Boron ("Neo", NdFeB or Neodymium) Magnets are made from an alloy containing, amongst others, the elements Neodymium, Iron and Boron (NdFeB). The NdFeB magnets are the strongest type of magnet commercially available and are manufactured in a wide range of shapes, sizes and grades.
The NdFeB magnets are anisotropic sintered magnets – the alloy is jet milled to a fine powder and is then compacted in the presence of a magnetic field to give it a preferred direction of magnetisation. The NdFeB magnets are then sintered to fuse the powder together before final machining and magnetising produces the completed super strength Neodymium magnet. The Neodymium magnets are also known as Neo magnets, Neodymium Iron Boron magnets, Neodymium-Iron-Boron magnets, Neodymium Magnets, NdBFe magnets, NdFeB magnets, NIB magnets, Super Strength magnets and Rare Earth magnets (please note that SmCo is also called a Rare Earth magnet). NdFeB is called a Rare Earth magnet because the Neodymium is a Rare Earth element, having a value of 60 on the Periodic Table. Super Strong Neodymium Magnets are for the heavy work. There are different grades of neodymium N35 - N52. Neodymium magnets are the most powerful of all permanent magnets. They are often known as “Super Magnets”.
They are used in applications where the strongest magnetic force is required from the smallest possible volume of magnet material. Even small neodymium magnets have a surprising amount of magnetic force and they are capable of lifting in excess of 1,000 times their own weight. A neodymium disc magnet weighing only 2 grams can lift a steel block weighing over 2,000 grams!
Neodymium magnets emit deep magnetic fields to attract ferrous items and other magnets from impressive distances. Two neodymium disc magnets 10mm diameter and 5mm thick can attract each other and hold in place, through the thickness of a human finger. This is why so many neodymium magnets are used by magicians for magic tricks and illusions.
Recent miniaturisation of power tools, motors, generators and loud speakers have only been possible because of the amazing magnetic performance provided by modern neodymium magnets.
Neodymium magnets are relatively new, they were developed in the mid 1980s and can now be found extensively in countless modern applications from fridge magnets to wind turbines!
Neodymium magnets are available in discs, blocks, arcs, spheres and trapezoid shapes. They can be supplied with a number of fixing options including countersunk holes for screw fixing and with 3M 468 self-adhesive for thinner magnets to be instantly fixed to point of sale displays and printed folders.
Threads cannot be manufactured directly into neodymium magnets because they are too hard and brittle, but when integrated into pot magnet assemblies, rear threaded fixings are available in the steel pot magnet shell.
Since the introduction of neodymium magnets, the manufacturing cost of neodymium magnets has fallen in line with a massive increase in production capability and now small neodymium magnets are cheap enough to be used in low cost promotional giveaway items.
Neodymium magnets (NdFeB), commonly known as ‘rare earth’ magnets are high-performance permanent magnets constructed from an alloy of neodymium, iron and boron. They are true permanent magnets and will not lose their magnetism unless they are heated to a temperature which exceeds the maximum operating temperature rating or their protective plating is damaged and water ingress causes rusting, which over time will magnetically and mechanically damage the magnets.
Magnosphere has a wide range of shapes and sizes of neodymium magnets and has over 25 million neodymium magnets in stock.
If you need neodymium magnets that are not in the standard range, then don’t worry, they can be made specially to order usually on a 4 week lead time and free of charge quotations can be issued quickly.
Magnosphere prides itself on offering free, expert, technical advice for it’s customers, ensuring they are on the cutting edge of supplying neodymium magnets for the latest emerging technologies.
Neodymium Iron Boron (NdFeB) magnets are a type of rare earth alloy with typical atomic structure of Nd2Fe14B which stands for 2 atoms of Neodymium, 14 atoms of Iron(Fe) and one atom of Boron. The sintered Neodymium Iron Boron magnet has higher magnetic properties compare to Samarium Cobalt magnets, however it is more easily oxidized and generally does not have the same temperature resistance. The highest energy products for Neodymium Iron Boron could reach 52 MGOe commercially or more
Magnosphere is a manufacturer of standard and custom rare earth magnets for the OEM industry. Materials used include sintered and bonded neodymium iron boron, samarium cobalt, aluminum nickel cobalt, ferrite (ceramic), and rubber. Available in various shapes and forms, including discs, rods, plates, cubes, rings, tubes, and spheres. Various magnetization options available. Applications include retail fixtures, motors, sensors, and many more. Magnets for whiteboards, glass boards, and mounts are also available. Capabilities include plating, coating, magnetization, design, simulation, 3D printing or prototyping, plastic injection molding and production. Services include assembly, testing magnetic materials BH curves, coating, plating, engineering design, magnetizing, marking, identification, stabilization, calibration, testing & certification. Markets served include aerospace/defense, medical, industrial, research labs, semi-conductor & telecommunications. JIT delivery!
What are Rare Earth Magnets?
Rare earth magnets, also known as neodymium magnets or samarium cobalt magnets are magnets made from alloys of rare earth elements. They are currently the strongest type of permanent magnets made, and produce significantly stronger magnetic fields than other types such as ceramic or alnico magnets. Rare earth magnets have replaced alnico and ferrite magnets in many applications, including head actuators for computer hard disks, magnetic resonance imaging (MRI),loudspeakers and headphones, several types of motors, and more.
Neodymium (Rare Earth) Magnets: the strongest magnets in the world
Magnosphere offers best priced Neodymium magnets globally to all industries, including Automotive, Aerospace, Military, Advertising, Design House, Electronic and Academic/R&D. Please inquire for custom Neodymium magnets or magnetic assembly. Neodymium is the strongest available magnet alloy at up to 52MGOe. The use of Neodymium results in smaller, more cost-effective magnet solutions replacing older materials like Alnico and Ceramic in many applications. Magnosphere.can help optimize performance and cost with Neo magnets in grades from 33 to 52MGOe and operating temperatures up to 230°C/446°F. (NdFeB) Neodymium, a rare earth magnet, is made up of Neodymium Iron and Boron and is moderate in price. A neodymium iron boron magnet is usually plated or coated (Examples: Nickel Plated, Epoxy Coated, Parylene Coated). Neodymium permanent magnets usually offer the best value when comparing price and performance. Stock Neodymium magnets are available in large quantities and dimensions.
Rare Earth Neodymium NdFeB
We provide a range of high magnetic strength Rare Earth Neodymium magnets including Disc magnets, Deep Pot magnets, Shallow Pot Neodymium and Round flat neodymium magnets, perfect for low profile applications, or high power holding applications. Due to their high strength and low cost, neodymium magnets revolutionized magnetic products. These magnets are the strongest developed thus far. Because neodymium magnets are between seven and fourteen times stronger than ceramic magnets they are sometimes called super strong or powerful magnets. Magnosphere sells the strongest type of neodymium rare permanent magnets on the market at Magnosphere.co.uk with a grade range of N35-N52.Grade N52 neodymium disc magnets measuring only ½” have a pull force of 32 lbs.!
- Neodymium NdFeB magnets are, size for size, the strongest type of any magnet material that is commercially available.
- Neodymium NdFeB magnets are often the ideal first choice for many applications because they offer a maximum performance from the smallest magnet volume.
- Neodymium NdFeB should always be coated to guard against the risk of corrosion – NiCuNi, Zinc, NiCuEpoxy and Gold are popular finishes.
Our Magnet-Shop carries a great variety of these powerful magnets to fit many different applications and they are in stock for immediate delivery!
Neodymium NdFeB magnets and their application!
At Magnosphere.co.uk, we sell custom Neodymium NdFeB magnets and custom magnetic assemblies so we can help you find the best fit for your project. Some of the common applications of the rare earth magnets are:
- Motors and Generators
- Automotive (clamps, sensors)
- Separation (rods, grids, etc) – 10-12kG (22-26lbs) systems
- High performance magnetic clamps and pot magnets
- They are used in computer hard drives.
- Rare earth magnets also find their utility in high-end speakers.
Based on the applications and properties earth magnets are of two types:
- Neodymium Magnet
- Samarium-Cobalt Magnet
Neodymium magnets can be fabricated into many shapes and types:
When buying magnets, be sure to read our safety instructions before using the magnets to avoid injury. A powerful neodymium magnet is not a toy!
Process of Making Rare Earth Magnets
- The rare earth magnets are made by using different process involving various stages. The popular stages of the production of rare earth magnets are:
- The first stage is the manufacture of rare earth element alloys.
- The metal alloy is then finely powdered.
- The next step involved is pressing of powder either isostatically or pressing through die process.
- The particles so pressed are oriented.
- Sintering of the element is done accordingly.
- The shapes are then sliced into desired shapes and sizes.
- The coating is done thereafter.
After finishing the above tasks, the finished shapes are magnetized.
Who supplies high quality Neodymium Magnets?
Magnosphere offers best priced Neodymium magnets globally to all industries, including Automotive, Aerospace, Military, Advertising, Design House, Electronic and Academic/R&D. Please inquire for custom Neodymium magnets or magnetic assembly.
Buy Neodymium (Rare Earth) Magnets at Magnosphere and get a better deal!
We routinely manufacture magnets to our customers' specifications. We have assisted many Fortune 500 companies produce magnets for their specific application. We have the ability to produce magnets with varying magnetic properties, pole orientation, size, shape, temperature range, protective coatings and mechanical properties. We specialize in rare-earth magnetic materials and can produce magnets in Alnico, Ceramic Ferrite, NdFeB and SmCo materials. We can produce both sintered and bonded magnetic materials. If you have a specific requirement, contact us to discuss your application. Need high quantities of magnets at the lowest and fairest price possible? Contact our Customer Care Team !