Permanent neodymium Iron Boron Cylinder magnets from China manufacturer

Permanent neodymium Iron Boron Cylinder magnets

Price:	0.01~100.0 USD
Payment Terms:	T/T,L/C,WU
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: RM-C01

Production Capacity: 100TON/MONTH

Delivery Date: 7-30days

Type: Permanent

Brand Name: rainbow magnet

Shape: Cylinder

Means of Transport: Ocean,Air;experess

Packing: standard air cartons or sea...

Application: Speaker Magnet

Composite: Neodymium Magnet

Grade: N/M/H/SH/UH/EH

Coating: Ni+Cu+Ni

1 Nd2Fe14B tetragonal crystalline structure
2 high Br,high Hcj,high (BH)max,and high stability become the important material of the world.

The main physical properties of sintered Rare earth NdFeB cylinder magnet:

magnetic properties	Parameters
Density /g.cm3 VickersHardness HV Resistivity /υΩ.cm Compressivestrength/N.mm-2 Coefficient of ThermalExpansion (C⊥)/K-1 Coefficient of ThermalExpansion (C∥) /K-1	7.45 570 150 780 -4.8X10-6 -3.4X10-6

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.

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

The shortcoming is the low of the Curie temperature and the temperature characteristics, easy to rust, oxidation, 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.

Nd-Fe-B permanent magnet with its excellent performance, abundant raw material and reasonable price is to be rapid development and wide application.

Also becoming increasingly popular across a wide range of novelty products for markets.

APPLICATION:

instrumentation,

electro-acoustic motor,

magnetic magnetization device

micro motors,

electronic industry,

automobile industry,

petrochemicals,

nuclear magnetic resonance device,

sound device magnetic suspension system,

magnetic transmission machine

magneto therapy equipment

high performance motors,

brushless DC motors,

demagnetization curve for grade N40H in difference temperatue:

magnetic properties for Rare earth NdFeB cylinder magnet with H grade:

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	℃
N33H	1.14-1.17	11.4-11.7	820-876	10.3-11.0	≥1353	≥17	247-263	31-33	≤120
N35H	1.17-1.21	11.7-12.1	860-907	10.8-11.4	≥1353	≥17	263-279	33-35	≤120
N38H	1.22-1.26	12.2-12.6	907-947	11.4-11.9	≥1353	≥17	287-303	36-38	≤120
N40H	1.26-1.29	12.6-12.9	907-947	11.4-11.9	≥1353	≥17	303-318	38-40	≤120
N42H	1.30-1.33	13.0-13.3	907-947	11.4-11.9	≥1353	≥17	318-334	40-42	≤120
N44H	1.33-1.36	13.3-13.6	907-947	11.4-11.9	≥1274	≥16	334-350	42-44	≤110