Neodymium Magnet, Sintered NdFeB magnet, the third generation of rare-earth permanent magnet, is the most powerful and advanced commercialized permanent magnet up to date. Neodymium Magnet has high coercive force, high energy and high performance/ cost ratio. It can be formed into various sizes and widely used in many fields such as aviation, electronics, instruments, meters, machines and medical instrument.

Sintering NdFeB magnet Ring
Feathers of Sintered NdFeB circular magnet:

1. One-stop solution provided for a broad range of magnetic products and materials

2. High performance NdFeB magnets (N50, N52, N54, N45SH), with machining micro ring magnets of dimensions of 0.4mm x 0.2mm and wall thickness of 0.2mm to 0.3mm
3. Stable partnerships with 200-plus global buyers
4. Prompt delivery: 10 days for small orders and 25 for volume ones
5. State-of-the-art manufacturing facilities for high capacity - a total of over 7,000-ton magnetic products and materials turned out annually
6. It is always manufactured via Cutting, Slicing, Drilling, and grinding etc.

Ring magnets have the following important factors such as Outer Diameter, Inner Diameter, Height, etc
Picture of Sintered NdFeB circular magnet

Our factory produce and manufacture magnets according to customer's design on shape, dimension, grades, coatings etc.
Magnetism direction of Sintered NdFeB circular magnet : Through the thickness, or diameter

Coatings: Passivation, Nickel, Zinc, Tin, Aurum, Copper, Epoxy, Chemical, etc.

Surface	Coating	Thickness (Microns)	Color	Resistance
Passivation		1	Silver grey	Temporary protection
Nickel	Ni+Ni	10-20	Silver bright	Excellent to humidity
	Ni+Cu+Ni
Zinc	Zn	8-20	Shining light blue	Good to salt spray
	Cu-Zn		Shining color	Excellent to salt spray
Tin	Ni+Cu+Sn	15-20	Silver	Superior to humidity
Aurum	Ni+Cu+Au	10-20	Shining gold	Superior to humidity
Copper	Ni+Cu	10-20	Shining gold color	Temporary treatment
Epoxy	Ni+Cu+Epoxy	15-25	Black, red, grey color	Excellent to climate humidity and salt spray
	Zn+Epoxy
Chemical	Ni	10-20	Silver grey	Excellent to humidity

Applications of Sintered NdFeB circular magnet: sensors, motors, rotors, wind turbine,wind generators, loudspeakers, magnetic hooks, filters automobiles, Toys, micro-special electric machinery, audio equipments, electronic industry, auto industry, magnetic transmission gears and magnet therapy equipment, sorption, ads, teaching tools and other office automation, magnet toys, aero generators, magnetic toys, magnetic separators, magnetic bracelets, magnetic necklaces, copiers, synchrotrons, radiation sources, free electron lasers, agriculture, detection earthquake, and so on.