Bonded NdFeB magnets are manufactured by binding rapid-quenching NdFeB powder. The powder is mixed with resin to form a magnet by compression molding with epoxy or infection molding with nylon. The latter technique is particular effective in large volume production, though the magnetic value of products is lower than those made with compression molding because of their relatively lower density. Various shapes of high dimensional accuracy can be produced without further processing. Surface is treated by epoxy coating or nickel-plating to prevent corrosion.

Grade	Max. Energy Product		Remanence	Coercive Force				Rev. Temp. Coeff.		Working Temp.	Density
	(BH)max		Br	Hc		Hci		Bd	Hd	Tw	D
	MGOe	kJ/m3	T	kOe	kA/m	kOe	kA/m	%/oC	%/oC	oC	g/cm3
BNP-6	5.0-7.0	40-56	0.52-0.60	3.8-4.5	304-360	8.0-10	640-800	-0.10	-0.40	140	5.3-5.8
BNP-8	7.0-9.0	56-72	0.60-0.65	4.5-5.5	360-440	8.0-12	640-960	-0.10	-0.40	140	5.6-6.0
BNP-10	9.0-10.0	72-80	0.65-0.70	4.5-5.8	360-464	8.0-12	640-960	-0.10	-0.40	120	5.8-6.1
BNP-12	10.0-12.0	80-96	0.70-0.76	5.8-6.0	424-480	8.0-11	640-880	-0.10	-0.40	130	6.0-6.2
BNP-8H	6.0-9.0	48-72	0.55-0.62	5.0-6.0	400-480	12-16	960-1280	-0.07	-0.40	120	5.6-6.0