The cost of custom magnets generally varies depending on the complexity of the design, quantity and other factors, but the benefits often outweigh the cost in terms of improved performance and efficiency. Also choosing the most suitable magnet reduces material waste and saves money.

So you don’t have to worry that custom made NdFeB magnets will be expensive. Sometimes choosing a custom NdFeB magnet is rather more cost friendly than choosing a standard magnet.

China Magnets Source specializes in producing custom neodymium magnets, particularly for applications in industry and scientific project. We have experience working with large-scale projects and providing custom rare earth magnets and magnetic assemblies for advanced scientific machines like those used at CERN (the European Organization for Nuclear Research).

It’s complicated process including preparing formula powder, melting, milling, pressing, sintering, machining, plating, magnetization and inspection.

Preparing formula powder is most important process. Because technician can add additional elements to adjust magnetic properties, such as Cobalt (Co) for high temperature and Dysprosium (Dy) for better intrinsic coercivity.

The smelting alloy ingot is made into powder by powder metallurgy process and is oriented and formed in the magnetic field. So after the molding embryo is sintered in an inert gas or vacuum to densify it, the sintered NdFeB has a very high magnetic energy product & coercivity, cost-effective, and has a good mechanical.

Do you know sintered neodymium-iron-boron magnets are rated according to maximum energy product. Look at our Specifications of Neodymium Magnets Page, you will find a rule that grade number 35 in the middle of (BH) maximum value 33-36 MGOe.  Therefore, higher values indicate stronger magnets, ranging from N35 up to N55.

And letters following the number indicate maximum operating temperatures (often the centigrade temperature), ranging from M (100℃), H (120℃), SH (150℃), UH (180℃), EH200℃) to AH (220℃). If there is no letters following like N42, then the maximum operating temperature is 80℃.

Due to iron element in the sintered neodymium magnets, coating is a very important part of neodymium 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. You can find more information from our Plating of Sintered Neodymium Magnet Page.

Our sintered neodymium iron boron magnets are customized in a variety of shapes including:

• Common shapes: disc, ring, cylinder, block, bar
• Irregular shapes: segment, countersunk, T shape, bread shape, triangle, oval, half disc
• Other custom shapes which can be realized by CNC precision machining
• Magnetic assemblies

Absolutely no, sintered ndfeb magnet is a kind of anisotropic magnet. The magnetic properties will be different by different pole direction. And there is always a direction that can get best magnetic force.

Find a complete summary of all our available magnetization directions for various magnet shapes on our Magnetization Direction page.