Are Neo Magnets and NdFeB Magnets the Same? – We occasionally get inquiries and manufacturing prints identifying a custom magnet shape using the abbreviation Neo. Because shorthand works – both internally and in discussions with our customers – we likewise sometimes refer to a Neodymium magnet as Neo or NdFeB. Of the rare earth element magnets, Neo magnets are the most commonly specified because they have the highest known energy product for their mass. One might possibly expect the Neo name to mean “new” – and that could be a reasonable assumption based on the fact that they were initially created relatively recently in 1984. The abbreviated name, however, actually comes from the element Neodymium – or Nd. Neo Magnets and NdFeB Magnets.
But there is a bit of a “new” twist to the naming story. In 1885, Carl Auer von Welsbach discovered that a substance known as (and previously misclassified as an element) ‘Didymium’ was actually a mixture of two entirely new elements. Welsbach successfully reacted Didymium to form nitrate salts, which he then fractionally crystallized from nitric acid to yield pink Neodymium and greenish-brown Praseodymium salts. Welsbach chose the name Praseodymium, which from Greek indicates ‘green twin.’ Compounds of praseodymium are green. Neodymium was named with ‘neos didymos’ – Greek for ‘new twin,’ reflecting Neodymium’s close association with praseodymium.
Neodymium magnets actually go by a few different abbreviations, but they all refer to the same magnet. This rare earth element magnet’s full name is Neodymium Iron Boron, so in addition to “Neo magnets” and “NdFeB magnets,” they are also sometimes referred to as “NIB magnets.” By the way, the full formula for the alloy NdFeB is Nd2Fe14B.
As previously stated, Neo magnets provide the greatest performance to volume ratio available, and work best up to 150º C. Samarium Cobalt (or SmCo5) magnets – another commonly specified rare earth magnet – are often better specified for industrial applications where temperatures will rise above 150º C.
It is important to note that Neo magnets typically require a protective coating, as they are prone to corrosion. One typical coating for NdFeB magnets is a triple layer plating of Nickel, Copper, and Nickel (Ni-Cu-Ni).
Whether you call them a Neo magnet, NIB, NdFeB, or Neodymium Iron Boron magnet, these are the same, high quality industrial magnet. As is the case with all magnet materials, when selecting Neodymium for your application, it is important to use the correct Neodymium magnet grade, and to be aware of the magnet’s physical and environmental operating limitations.
Hidden Sew In Magnetic Snaps 14 x 2 mm w/ Square PVC cover, Hidden Sew In Magnetic Purse Snap / Closure, Hidden Magnets, PVC Casing Magnetic Snap, Magnetic Buttons, Sew In Magnets Sew In Magnetic Snaps Features: Part No.: NMSWM-S1402 Magnet Material: NdFeB Neo Grade: N35, N38 Magnet Shape: Disc PVC Cover Shape: Square Diameter: 14 mm Height: 2 […]
Invisible Sew-in Magnet Snaps 12 x 2 mm, Sew-in Magnets, Sew-in Neodymium Magnets, Sew-in Magnetic Snaps with Clear PVC Cover, Invisible Hidden Sew-in Magnetic Snap Closures Sew-in Magnet Features: Part No.: NMSWM-S1202 Magnet Material: NdFeB Neo Grade: N35, N38 Magnet Shape: Disc PVC Cover Shape: Square Diameter: 12 mm Height: 2 mm Side length square PVC cover: 28 mm Coating/Plating: Zinc […]
Small Sew-in Magnets 10 x 2 mm with Square PVC Cover, Sewing Magnets, Invisible Hidden Sew Magnetic Snap Magnet With PVC Fastener for Handbag Clothing, Neodymium Sew-in Magnets Sew-in Magnets Features: Part No.: NMSWM-S1002 Magnet Material: NdFeB Neo Grade: N35, N38 Magnet Shape: Disc PVC Cover Shape: Square Diameter: 10 mm Height: 2 mm Side length square PVC […]
Axial NdFeB Block Sensor Magnet N35H 4x2x1mm, Small Powerful Block Axial Magnet for linear position sensor, Customized Sensor Rectangular Magnets Block Sensor Magnet Part No.: HSND-B0421-35H Magnetisation Grade: N35H Material: Sintered Neodymium-Iron-Boron (Rare Earth NdFeB) Plating / Coating: Nickel (Ni-Cu-Ni) Magnet Shape: Block / Rectangle / Rectangular Magnet Size: LxWxH = 4 mm x 2 mm x 1 mm Magnetisation Direction: […]
D0.75×1.50mm N45SH Thin NdFeB Axial Magnet for linear position sensor, Axial Thin NdFeB Rod Magnet, Super Strong Cylindrical Neo Mirco Magnet Axial Magnet Part No.: HSND-00.751.5-45SH Magnetisation Grade: N45SH Material: Sintered Neodymium-Iron-Boron (Rare Earth NdFeB) Plating / Coating: Nickel (Ni-Cu-Ni) Magnet Shape: Rod, Cylinder, Cylindrical Magnet Size: D0.75 x 1.50 mm Magnetisation Direction: Diametral / Diametrical Residual Magnetic […]
D8x2.5mm Diametral Magnet Disc N35H for Rotary Position Sensor, Neodymium Disc Sensor Magnet, Round Magnets for Magnetic Rotary Encoder Diametral Magnet Part No.: HSND-0082.5-35H Magnetisation Grade: N35H Material: Sintered Neodymium-Iron-Boron (Rare Earth NdFeB) Plating / Coating: Nickel (Ni-Cu-Ni) Magnet Shape: Disc, Disk, Round Magnet Size: D8 x 2.5 mm Magnetisation Direction: Diametral / Diametric Residual Magnetic Flux Density (Br): 1170-1220 […]