Neodymiummagnet (NdFeb) Disc D9.8(+0/-0.1) x h4 (+0/-0.1) from China manufacturer

Neodymiummagnet (NdFeb) Disc D9.8(+0/-0.1) x h4 (+0/-0.1)

Price:	1.0~100.0 USD
Payment Terms:	T/T
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Means of Transport: Ocean,Land,Air

Packing: your decision

Application: Industrial Magnet

Type: Permanent

Grade: N33

coating: Ni coating

Production Capacity: 1000000pcs/month

Delivery Date: within 15 days

Shape: Disc

Composite: NdFeB Magnet

Size: D9.8(+0/-0.1) x h4 (+0/-0.1...

Grade: N33
Size: D9,8(+0/-0.1) x h 4 (+0/-0.1)
Magnetized axial
Ni coating

General narration:

Neodymium magnet (also known as NdFeB, NIB, or Neo magnet), is a most widely-used type of rare-earth magnet, and a permanent magnet made from an alloy of neodymiumm, ironn, and boron to form the Nd2Fe14B tetragonal crystalline structure. It was developed in 1982. Neodymium magnets are the strongest type of permanent magnet made. They have replaced other types of magnets in the many applications in modern products that require strong permanent magnets, such as motors in cordless tools, hard disk drives, and magnetic fasteners. Because neodymium magnet have greater strength which allows the use of smaller, lighter magnets for a given application.

For examples:
Head actuators for computer hard disks;
Magnetic resonance imaging;
Magnetic guitar pickups;
Loudspeaker and headphones;
Electric motors;
Spindle and stepper motors;
Drive motors for actuators;
Electric generators for wind turbines.

Neodymium magnet is an iron based permanent magnet, because of this, it is easy to be rusted or oxidation. To avoid such problems, the magnet coating, electrical plating or suitable surface treatment are needed.

Available Coatings for Magnets
Surface	Coating	Thickness (Microns)	Color	Resistance
Passivation		1	Silver Grey	Temporary Protection
Nickel	Ni+Ni	10-20	Bright Silver	Excellent Against Humidity
Nickel	Ni+Cu+Ni	10-20	Bright Silver	Excellent Against Humidity
Zinc	Zn	8-20	Bright Blue	Good Against Salt Spray
Zinc	C-Zn	8-20	Shinny Color	Excellent Against Salt Spray
Tin	Ni+Cu+Sn	15-20	Silver	Superior Against Humidity
Silver	Ni+Cu+Ag	10-20	Silver	Superior Against Humidity
Gold	Ni+Cu+Au	10-20	Gold	Superior Against Humidity
Copper	Ni+Cu	10-20	Gold	Temporary Protection
Epoxy	Epoxy	15-25	Black,Red,Grey	Excellent Against Humidity&Salt Spray
	Ni+Cu+Epoxy
	Zn+Epoxy
Parylene	Parylene	5-20	Grey	Excellent Against Humidity,Salt Spray,Superior Against Solvents,Gases, Fungi and Bacteria,FDA Approved
Chemical	Ni	10-20	Silver Grey	Excellent Against Humidity

Magnet disc

1. Materials: Sintered Neodymium-Iron-Boron, rare earth NdFeB disc magnets;

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 temp is up to 200 degree centigrade or 380 curie temperature;

4. Grades: N33-N52,33M-48M,33H-48H,30SH-45SH,30UH-38UH and 30EH-35EH;

5. Shapes and sizes: Various kinds or according to customers' request;

6. Coatings: Ni, Zn, gold, copper, epoxy, chemical, parylene and so on;

7. Certification:ISO9001:2008 and ISO/TS16949:2009.

8. Applications of the Disc magnet: Widely used in different applications, such as sensors, motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on