Neodymium Iron Boron square thin magnet from China manufacturer

Price:	0.5~2.0 USD
Payment Terms:	T/T,L/C,WU
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: RM-B04

Production Capacity: 100ton/month

Delivery Date: 7-20 days accoddng the quan...

Shape: Block

Composite: NdFeB Magnet

material: Neodymium Iron Boron

Means of Transport: Ocean,Air

Packing: standard carton by sea or b...

Application: Industrial Magnet

Type: Permanent

Brand Name: Rainbow

Sintered Neo magnets have high Br,high Hcj,high (BH)max,and high stability, become the important material of the world.

product:Square Permanent thin Magnet

A neodymium magnet (also known as NdFeB, Neodymium Iron Boron magnets Neo magnet), is a type of rare-earth permanent magnet. It is made from an alloy of neodymium, iron, and boron to form the Nd₂Fe₁₄B tetragonal crystalline structure. This material is currently the strongest type of permanent magnetin the world.

There are two kinds of magnets: Sintered NdFeB magnet and bonded NdFeB magnet.

This NdFeB magnet square is Sintered NdFeB magnet,the magnetized through the thickness.

Nd-Fe-B permanent magnet is manufactured in a wide range of shapes, sizes and grades according customer's demand.

NdFeB has a very high energy product and coercivity, can pick up 660 times of own weight of heavy objects.

The advantage is high cost-effective, with good mechanical properties, easy cutting; according customer's demand to manufacture in a wide range of shapes, sizes and grades.

Mostly of rare earth permanent magnet always work do not at room temperature or under vacuum, the shortcoming of Neo magnetis easy to rust, oxidation, so the Sintered NdFeB's surface is usually required for plating such as zinc, nickel, silver, gold, etc., can also be done phosphorus treatment or spray epoxy resin to slow down the oxidation rate.

Which coating is fit your products?pls see the compare table of

salt spray test results for coating
Specifications of Square Permanent Magnet

Commonly type of coating	Coatingthickness(um)				Neutral salt spray test
Commonly type of coating	dark Ni	Cu	Shine Ni	Total	Neutral salt spray test
Single-layer Ni	25			25	24h	normal
Double-layer Ni	12		10	25	72h	better
Dark Ni-Cu–shine Ni	6.25	8.75	10	25	120h	excellent

This grade is EH,the max working temperature is for 200 degree. and its details properties, pls see follow table.

Sintered NdFeB magnetic energy parameters

Grade	Residual Induction		Coercive Force		Intrinsic Coercive Force		Maximum Energy Product		Maximum Operating Temperature
	Br		Hcb		Hcj		(BH)max		Tw
	T	KGS	KA/m	KOe	KA/m	KOe	KJ/m3	MGOe	℃
N28EH	1.04-1.08	10.4-10.8	780-812	9.8-10.2	≥2388	≥30	207-223	26-28	≤200
N30EH	1.08-1.12	10.8-11.2	804-844	10.1-10.6	≥2388	≥30	223-239	28-30	≤200
N33EH	1.14-1.17	11.4-11.7	820-876	10.3-11.0	≥2388	≥30	247-263	31-33	≤200
N35EH	1.17-1.21	11.7-12.1	860-907	10.8-11.4	≥2388	≥30	263-279	33-35	≤200
N38EH	1.22-1.26	12.2-12.6	860-907	10.8-11.4	≥2388	≥30	287-303	36-38	≤200