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A neodymium magnet (NdFeB), is the most widely used type of rare-earth magnet and is a permanent agnet made from an alloy of neodymium, iron and boron to form the permanent magnet.  Neodymium magnets are the strongest permanent magnets commercially available. They are in many products that require strong permanent magnets, such as electric motors, generators and cordless tools. 

Sintered Neodymium (NdFeB), the lanthanide series of elements in the periodic table, also known as a second generation rare earth magnet, are the most powerful magnets available today with outstanding magnetic properties. By some, they are considered exotic materials, even though significant amounts of ore deposits are found around the world. The two most commonly known rare earth magnets are: Sintered Neodymium Iron Boron (NdFeB) simply known as Neo’s and Samarium Cobalt (SmCo) magnets known as Cobalt magnets. Due to their high magnetic strength extreme caution should be taken during handling and assembly. Read more

Bonded Neodymium magnets are manufactured through the compression process. This process involves mixing neodymium powder with epoxy as a binder and pressing it into a die cavity with no magnetic field, thus making these magnets Isotropic. Pressed parts are then placed into the oven for curing. Compression bonded neodymium magnets are an excellent choice over other magnet types (sintered neodymium, sintered samarium cobalt, and hard ferrites) that have limits to some shapes that compression bonded magnets do not have. With their high energy product reaching up to 12 MGOe it makes them ideal for many applications requiring high magnetic strength and tight tolerances. Since no magnetic field is applied during the compression the finished product can be magnetized in any direction. Read more

Injection Molded Neodymium Iron Boron (NdFeB) magnets are manufactured by an injection process of pre-mixed magnetic powder with thermoplastic binders e.g. Nylon 6 or 12 or Polyphenylene Sulfide (PPS) which produces an accurate and homogeneous magnetic part. Through this process various shapes of magnets can be directly molded into or over the components e.g. shafts, cams, inserts and the like eliminating some steps in assembly. With the injection mold process very complex shaped magnets can be achieved with extremely tight tolerances and a broad range of magnetic properties and characteristics. Read more

NEODYMIUM MAGNET types

MAGNAWORKS

TECHNOLOGY Inc.