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>	Nd-Fe-B Sintered Magnet

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>	Magnet & Magnetism FAQ

As the third generation rare earth magnets, NdFeB ( Neodymium+Iron+Boron) provides the highest maximum energy product among permanent magnets. It was exploited in the 1980s and is called “The king of magnet” for its highest magnetic energy product.

They are manufactured from rare earth raw materials and priced to be the most cost-effective high-energy magnets on the market.

●	A sintered material that offers superior mechanical properties.
●	Highest energy materials.
●	Operating temperature range: from +80℃ to 200℃.
●	Excellent demagnetization resistance capability.
●	Neodymium magnets are usually provided with a coating to protect against oxidizing. The coating can be zinc, nickel, gold, tin, copper, epoxy resin etc.

So you will see different colours of the products.

Please look at the pictures and product parameter as follows and you will get a clearer idea about our products.

Cylinder & Disc & ball shape　　　　　　Block or Rectangular Shape

Ring Shape　　　　　　　　　　　　　　　Ring Shape

Arc segment and Irregular shape

NdFeB magnet Technical parameter

Grade	Remanence（Br）		Coercive Force（bHc）		Intrinsic Coercive Force（Hcj）		Maximum energy product（BH）max		Working Temp	Density
Grade	kGs	T	kOe	kA/m	kOe	kA/m	MGOe	kJ/m3	℃	G/cm3
N35	11.8-12.4	1.18-1.24	≥10.5	≥835	≥12	≥955	≥33	≥263	≤80	≥7.54
N38	12.4-12.8	1.24-1.28	≥10.8	≥859	≥12	≥955	≥36	≥286	≤80	≥7.54
N40	12.4-13.0	1.24-1.30	≥10.8	≥859	≥12	≥955	38-41	302-326	≤80	≥7.54
N42	12.8-13.4	1.28-1.34	≥10.8	≥859	≥12	≥955	40-43	318-350	≤80	≥7.54
N45	13.2-13.8	1.32-1.38	≥11.0	≥875	≥12	≥955	43-46	342-374	≤80	≥7.54
N48	13.6-14.1	1.36-1.41	≥11.2	≥891	≥12	≥955	45-49	358-390	≤80	≥7.54
N50	14.0-14.6	1.40-1.46	≥11.2	≥891	≥12	≥955	47-51	374-405	≤80	≥7.54
38M	12.3-12.7	1.23-1.27	≥11.5	≥915	≥14	≥1114	36-38	286-302	≤100	≥7.54
40M	12.4-13.0	1.24-1.30	≥11.8	≥939	≥14	≥1114	38-40	302-318	≤100	≥7.54
42M	12.8-13.4	1.28-1.34	≥12.0	≥955	≥14	≥1114	40-43	318-342	≤100	≥7.54
45M	13.2-13.8	1.32-1.38	≥12.2	≥971	≥14	≥1114	43-46	342-366	≤100	≥7.54
48M	13.5-14.0	1.35-1.40	≥12.5	≥995	≥14	≥1114	45-49	358-390	≤100	≥7.54
50M	13.9-14.3	1.39-1.43	≥12.5	≥995	≥14	≥1114	47-51	374-406	≤100	≥7.54
38H	12.3-12.7	1.23-1.27	≥11.5	≥971	≥17	≥1353	36-38	286-302	≤120	≥7.54
40H	12.4-13.0	1.24-1.30	≥11.8	≥939	≥17	≥1353	38-40	302-318	≤120	≥7.54
42H	12.8-13.4	1.28-1.34	≥12.0	≥955	≥17	≥1353	40-43	318-342	≤120	≥7.54
45H	13.2-13.8	1.32-1.38	≥12.2	≥971	≥17	≥1353	43-46	318-366	≤120	≥7.54
48H	13.6-14.2	1.36-1.42	≥12.8	≥1019	≥16	≥1274	45-48	358-382	≤120	≥7.54
33SH	11.4-12.0	1.14-1.20	≥10.5	≥834	≥20	≥1592	≥31	≥247	≤150	≥7.54
35SH	11.7-12.5	1.17-1.25	≥10.8	≥860	≥20	≥1592	≥33	≥263	≤150	≥7.54
38SH	12.2-12.7	1.22-1.27	≥11.3	≥899	≥20	≥1592	36-39	286-310	≤150	≥7.54
40SH	12.4-13.0	1.24-1.30	≥11.8	≥939	≥20	≥1592	38-41	302-326	≤150	≥7.54
42SH	12.8-13.6	1.28-1.36	≥12	≥955	≥20	≥1592	39-43	310-342	≤150	≥7.54
30UH	10.8-11.0	1.08-1.10	≥9.5	≥756	≥25	≥1990	28-31	223-247	≤180	≥7.54
33UH	11.3-11.7	1.13-1.17	≥9.8	≥780	≥25	≥1990	31-34	247-270	≤180	≥7.54
35UH	11.7-12.1	1.17-1.21	≥10.5	≥835	≥25	≥1990	33-36	262-286	≤180	≥7.54
30EH	10.8-11.5	1.08-1.15	≥10.1	≥804	≥30	≥2388	28-31	223-247	≤200	≥7.54
32EH	11.3-12.1	1.13-1.21	≥10.5	≥835	≥30	≥2388	30-33	238-262	≤200	≥7.54
35EH	11.8-12.5	1.18-1.25	≥11.0	≥875	≥30	≥2388	33-35	262-278	≤200	≥7.54