Super Magnets / Rare Earth Magnets / Strong Neodymium Magnets
We offer strong Neodymium magnets for sale which are the most popular Strong Rare Earth Magnets in the World. The alloy of three elements NdFeB (Neodymium, Iron, and Boron) joined together creates these strong Neodymium Magnets. People use the term “Rare Earth Magnet” and “neodymium magnet” synonymously because neodymium magnets are the most popular and well-known of the rare earth group for sale today. Other common names for strong neodymium magnets include Neo Magnets, or Earth Magnets.
Super Strong Neodymium Magnet, buy the strongest neodymium magnets here Disc, blocks, rings and spheres in various sizes, as sets & self-adhesive. The World's Strongest & Most Powerful Rare Earth Magnets
Supermagnets - Strong Magnets, Rare Earth Magnets and Magnet Material
Magnosphere stocks alnico magnets, bonded magnets, ceramic (ferrite) magnets, flexible rubber magnets, neodymium iron boron (NdFeb) magnets and samarium cobalt magnets along with magnetic material assemblies for fabrication and distribution. Many standard magnetic alloy materials, grades, and geometries (shapes) are available for immediate use. Magnosphere will also fabricate from inventoried permanent magnet materials to your specific requirements.
Diversity exists between the varieties of magnetic alloy materials and grades. Each permanent magnetic material has unique advantages and disadvantages. We suggest that you contact our customer support team so your application can be reviewed. We will then be able to select appropriate magnetic material for your application.
A brief description of commercially available magnetic materials is listed below. A more rigorous explanation and technical characteristics of the various magnetic alloy materials are available on their individual pages.
Alnico magnet alloy is largely comprised of Aluminum, Iron, Cobalt and Nickel. Alnico is a moderately expensive magnet material because of the Cobalt and Nickel content. Alnico magnet alloy has high maximum operating temperature and very good corrosion resistance. Some grades of Alnico alloy can operate upwards of 5500C. Magnets made with this alloy are available in a variety of grades and dimensions and are usually cast and finish ground to size. Alnico magnet material is an older technology and it has a rather low Energy Product (BHmax). Alnico magnet alloy is now mainly used in military, aerospace, older proprietary designs and in applications where the magnet will be exposed to elevated temperatures.
Rare Earth Magnets
Samarium Cobalt Magnets (SmCo) and Neodymium Iron Boron Magnets (NdFeB) are called Rare Earth Magnets because Neodymium and Samarium are found in the rare earth elements on the periodic table. Both Samarium Cobalt and Neodymium magnet alloys are powdered metals which are compacted in the presence of a strong magnetic field and are then sintered.
Neodymium Magnets (Rare Earth)
(NdFeB) Neodymium, a rare earth magnet, is made up of Neodymium Iron and Boron and is moderate in price. With poor corrosion resistance, a neodymium iron boron magnet is usually plated or coated (Examples: Nickel Plated, Epoxy Coated, Parylene Coated). Neodymium magnets are offered in a range of operating temperatures depending on your application (80°C to 200°C). Premium Neodymium magnetic materials capable of operating above 120°C can become quite expensive. This permanent super magnetic material has many intellectual property rights associated with it and there are a limited number of licensed manufacturers in the world. Many infringing manufacturers from the Pacific-rim dump subpar magnetic material into the Western markets. This magnetic material is extremely powerful and it has allowed for the downsizing of many products from HDD (Hard Disc Drives) and motors to novelties and audio devices. Neodymium permanent magnets usually offer the best value when comparing price and performance.
Samarium Cobalt Magnets (Rare Earth)
Samarium Cobalt, another rare earth magnet, is made up largely of Cobalt and Samarium and is the most expensive magnetic material to manufacture and to fabricate. Most of the cost is due to the high Cobalt content and the brittle nature of the Samarium alloy. This permanent magnetic material offers high resistance to corrosion and can withstand high operating temperatures, up to 350°C. Samarium Cobalt magnetic materials are used extensively in the aerospace market or in areas of industry where performance is the priority concern and cost is secondary. Samarium Cobalt is the second most powerful magnetic material and exhibits excellent resistance to demagnetization.
Ceramic Magnets (Rare Earth)
Ceramic magnet material (Ferrite) is Strontium Ferrite. Ceramic magnets are one of the most cost-effective magnetic materials manufactured. The low cost is due to the cheap, abundant, and non-strategic raw materials used in manufacturing this alloy. Permanent Ceramic magnets lend themselves to large production runs. Ceramic magnet material (Ferrite) has a fair to good resistance to corrosion and can operate in moderate heat. The majority of the worlds Ceramic magnetic material comes from China because of the alloys commodity nature and the high tooling costs found in the west. Ceramic (Ferrite) magnets have a low Energy Product and are usually used in an assembly containing mild steel.
Bonded magnet materials can be made from Ceramic, NdFeB, or SmCo powders which are combined with a variety of plastic binders (Matrix). They can be either Injection Molded or Compression Bonded into complex magnet shapes with finished dimensions. Bonded magnet materials have a moderate resistance to corrosion and a low tolerance to heat because of the binder material. Bonded magnets are commonly used in automotive parts because they lend themselves to large production quantities and complex shapes can be produced at a low cost.
Magnosphere has the ability to produce magnets in a variety of materials and grades. The majority of magnets sold and stocked at our facility are Sintered NdFeB (Grade N40), but other varieties are available, and can be produced in most combinations of materials with most sizes.
When selecting an NdFeB grade, keep in mind that the higher the grade (lower in the chart) the more brittle the magnets will be. Operating Temperatures are grouped by color for ease of reading. When selecting a working temperature, make sure you will not reach or exceed the Tmax value in the chart, or the magnets will be damaged.
Who supplies high quality Rare Earth Magnets?
Magnosphere.uk.co 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 Rare Earth Magnets at Magnosphere.co.uk and get a better deal!
Need high quantities of magnets at the lowest and fairest price possible? Contact our Customer Care Team!