Neodymium magnet is the strongest magnet in the world till now that can lift up to 1000 times its own weight, it is mainly made of Neodymium, Iron and Boron. It is high remanence, high coercive force, high energy product and high performance/cost ratio. Neodymium magnet is anisotropic and only magnetized in one direction.

Feathers of strong sintered NdFeB sphere magnet:

1. Materials: Neodymium-Iron-Boron;

2. Technology: Utilizes new Sintered NdFeB magnet techniques and equipment such as strip casting, HDDR technology; 

3. Magnetic properties: High coercive force, the max operation temperature is up to 240°C or 464°F; 

4. Grades: N30-N54, N30M-N52M, N30H-N50H, N30SH-N45SH, N28UH-N42UH, N26EH-N38EH, N28AH-N35AH;

5. Shapes: Sphere ( ball), others;

Pictures of strong sintered NdFeB sphere magnet

6. Sizes: Diameter, Customized;

7. Tolerance: ±0.05mm, Customized;

8. Coatings of strong sintered NdFeB sphere magnet: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

9. Applications of strong sintered NdFeB sphere magnet: sensors, motors, rotors, wind turbine,wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles, Toys, packing boxes, magnetic buttons, jewelry, micro-special electric machinery, audio equipments, permanent-magnet instrumental meters, electronic industry, auto industry, nuclear magnetic resonance equipments, magnetic transmission gears and magnet therapy equipment, sorption, ads, books managements, teaching tools and other office automation, magnet toys, aero generators, magnetic toys, magnetic separators, magnetic bracelets, magnetic necklaces, copiers, magnetic rolls, synchrotrons, radiation sources, free electron lasers, nuclear industry, agriculture, detection earthquake, and so on.