Bonded NdFeB

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China Mainland
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Description

Product Detail

Bonded NdFeB magnets are produced by binding rapid-quenching Nd-Fe-B powders which is mixed with plastic resin to form a magnet by compression molding with epoxy and injection molding with nylon. The injection molding has particularly useful feature in molding very complicated shapes and thin walled parts. The compression molded magnets are limited for simple geometries, but they can offer higher magnetic strength than injection molded magnets because of relative high density. Bonded NdFeB have lower energy properties compared with sintered NdFeB. However, it can be produced with high dimension accuracy and shape complexity. Normally, there is no finishing required for bonded NdFeB. In order to prevent corrosion, the magnet surfaces are treated by epoxy coating or nickel plating.

Typical Magnetic Performance Range for Bonded NdFeB Magnets

Grade	Br		Hcb		Hcj		BHmax		Density	Tw Max
Grade	kGs	mT	kOe	kA/m	kOe	kA/m	KJ/m3	MGOe	g/cm3	?
BN-2	3.50	350	2.5	200	7.0	560	20	2.5	4.8	160
BN-4	4.50	450	3.5	280	8.0	640	40	5.0	5.5	160
BN-6	5.50	550	4.5	360	8.0	640	52	6.5	5.8	160
BN-8	6.50	650	5.0	400	9.0	720	64	8.0	6.0	160
BN-8H	6.30	630	5.5	440	15.0	560	64	8.0	6.0	160
BN-8SR	6.30	630	5.5	440	12.0	560	64	8.0	6.0	180
BN-8L	6.50	650	5.5	440	9.0	560	68	8.5	6.0	160
BN-10	7.00	700	5.5	440	9.0	560	80	10.0	6.0	160
BN-10H	7.30	730	5.5	440	9.0	560	84	10.5	6.2	160
BN-12	7.50	750	6.0	480	10.0	560	92	11.5	6.2	160
BN-12D	7.50	750	6.0	480	10.0	560	92	11.5	6.2	170
BN-12L	7.80	780	5.5	440	7.0	560	92	11.5	6.2	150
BN-13L	8.00	800	5.5	440	7.0	560	96	12.0	6.3	150