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Sintered Neodymium Iron Boron (NdFeB) Magnets - Strongest Magnets in the World

When it comes to the neodymium magnets, we know they are the strongest magnets in the world. But actually, there is a more precise name - sintered NdFeB magnet.

Because there is another neodymium magnet - bonded NdFeB magnet according to different manufacturing process. The bonded magnet has lower magnetic force than sintered magnet.

Sintered neodymium magnet is a rare earth magnet made from an alloy of neodymium, iron, boron and other microelements (Dy、Al、Nb、Mo、Co and so on).

Permanent Magnet Applications

Sintered NdFeB magnet is also the most widely used type of permanent magnet. The applications cover wind energy, oil energy, automobile, electronic industry, IT, medical, mining, audio-visual, sports, toys, stationery, printing, package, gifts and crafts etc.

Demagnetization Curves

Based on different temperature resistant, sintered neodymium magnets can be divided into 7 series grades: N (80℃), M (100℃), H (120℃), SH (150℃), UH (180℃), EH200℃), AH (220℃).

Characteristic properties of Sintered NdFeB

Based on different magnetic energy product, sintered NdFeB magnets have grades like 35, 38, 40, 42, 45, 48, 50, 52 and 55.

Available coatings of Sintered NdFeB magnets

Due to iron element in the sintered neodymium magnets, coating is a very important part of magnet. Although we can provide a variety of options for plating, nickel is still the most common and usually preferred.

Our nickel coated magnets are actually triple plated with layers of nickel, copper, and nickel again. This triple plating keeps our sintered neodymium magnets much more durable than the magnets with single nickel plated. Some other options for coating are zinc, tin, and plastic, epoxy, silver and gold.


Our sintered neodymium iron boron magnets are customized in a variety of shapes including common shapes: disc, ring, cylinder, block, bar and irregular shapes: segment, countersunk, T shape, bread shape, triangle, oval, half disc and other shapes which can be realized by CNC precision machining.


Magnet Packaging and Transport

China Magnets Source Material Ltd makes permanent rare earth sintered neodymium magnets at high quality and affordable prices. We help you choose RIGHT MAGNET for your application, just click "SENT EMAIL".

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Contact information
China Magnets Source Material Limited
Tower B, Qiongzhu Building,
Huawang Rd,Longhua District,
Tel: +86 755 28174720
Fax: +86 755 28174720