Neodymium Iron Boron bar magnets from China manufacturer

Price:	0.01~0.1 USD
Payment Terms:	T/T,L/C
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: RM-B19

Production Capacity: 100ton/month

Delivery Date: 10-20 days

Shape: Block

Composite: NdFeB Magnet

material: Neodymium Iron Boron

Means of Transport: Ocean,Air

Packing: standard air cartons or sea...

Application: Industrial Magnet

Type: Permanent

Brand Name: Rainbow magnet

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

NdFeB small bar Magnet

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 magnet in the world.

There are three main parameters for magnet

the remanence Br (unit: Gauss), is the magnetic energy to measure the parameters of the magnetic field strength;

coercivity Hc (unit Oersted ) is a measure of the anti-demagnetization ability parameters;

the BH(max) (unit Gauss-Oersted), is how much of the characterization can store energy in a physical quantity.

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

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

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

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.

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.

Pic show the magnet small size with very thin thickness,the size is 12.8x2.2x0.6mm.we have excellent machine to control the exactitude size.

See the follows Grade SH 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	℃
N30SH	1.08-1.12	10.8-11.2	804-844	10.1-10.6	≥1592	≥20	223-239	28-30	≤150
N33SH	1.14-1.17	11.4-11.7	820-876	10.3-11.0	≥1592	≥20	247-263	31-33	≤150
N35SH	1.17-1.21	11.7-12.1	860-907	10.8-11.4	≥1592	≥20	263-279	33-35	≤150
N38SH	1.22-1.26	12.2-12.6	907-947	11.4-11.9	≥1592	≥20	287-303	36-38	≤150
N40SH	1.26-1.29	12.6-12.9	907-947	11.4-11.9	≥1592	≥20	303-318	38-40	≤150
N42SH	1.30-1.33	13.0-13.3	907-947	11.4-11.9	≥1512	≥19	318-334	40-42	≤140

The main physical properties of sintered NdFeB

magnetic properties	Parameters
Density /g.cm3 Vickers Hardness HV Resistivity /υΩ.cm Compressive strength/N.mm-2 Coefficient of Thermal Expansion (C⊥)/K-1 Coefficient of Thermal Expansion (C∥) /K-1	7.45 570 150 780 -4.8X10-6 -3.4X10-6

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

²APPLICATION:

² instrumentation,

² electro-acoustic motor,

² magnetic magnetization device

²micro motors,

²electronic industry,

²automobile industry,

²petrochemicals,

²nuclear magnetic resonance device,

²sound device magnetic suspension system,

²magnetic transmission machine