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Home > Rare-earth Permanent Magnets > NdFeB Magnets

NdFeB Magnets

Neodymium magnets are a member of the Rare Earth magnet family and are the most powerful permanent magnets in the world. They are also named as NdFeB magnets because they are composed mainly of Neodymium (Nd), Iron (Fe) and Boron (B). Or just simply named as Neo magnets.

They are graded by the materail they are made of like N35, N38, N40, N42...For the time being, we can supply as high as N52 super power Neodymium magnets. Because of its strong magnetic power, they have replaced other types of magnet in the many applications in modern products such as motors in cordless tools, hard disk drives, and magnetic fasteners.

Here below are two principal neodymium magnet manufacturing routes:

The classical powder metallurgy or sintered magnet process;
Melting raw material→ forming to ingots→ milling to powders→ liquid-phase sintering→ aligned into dense blocks→ heat treatment→ cut to shape→ surface treatment→ magnetized

The rapid solidification or bonded magnet process:
Metal spinning to alloy→ pulverized into particles→ mixed with a polymer→ injection molding into bonded magnets

Generally bonded magnets offer less flux than sintered magnets but can be net-shape formed into intricately shaped parts and do not suffer significant eddy current losses.

Before magnetizing, Neo magnets are usually plated with Nickel to avoid getting rust. Nickel is the most common and preferred coating option and our nickel plated magnets are actually triple plated with layers of nickel, copper, and nickel again, which makes our magnets much more durable than single coating magnets. We also have some other options for coating like zinc, copper, epoxy, silver and gold.

We have been in rare earth permanent magnets manufacturing line for about 8 years. Offering good quality magnets for every magnet user is our goal. We are also glad to help those who want to develop innovative magnetic products with custom made magnets to meet their special requirement.

If you haven't found the size and grade that you want from our website, please inform us and we will custom make it for you.

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