Electric motor magnets

Electric motor magnets 1)Strong magnetic force 2)Small hole in center of disc 3)For motor,meter 4)Factory manufacture

Electric motor magnets  

Neodymium magnets (Nd-Fe-B magnets) are the most widely-used type of rare-earth magnet. It is the strongest type of permanent magnet made from an alloy of Neodymium, Iron, and Boron with the Nd2Fe14B tetragonal crystalline structure. It has replaced other types of magnets in many applications in modern products that require strong permanent magnets, such as motors.

Physical property

Temperature Coefficient of Br	(-)0.11%/°C	bHc temperature coefficient	(-)0.6%/°C
Density	7.3-7.5g/m³	Resistivity	114μΩ.cm
Vickers hardness	600Hv	flexural strength	25kg/mm
Extension strength	8.0kg/	Heat expansion coefficient	4x10 -6/°C
Special heat	0.12kcal/kg	Heat conduction coefficient	7.7kcal/[m.h.°C]
GPA	1.6x10[11]N	Rigidity	064N/
Poisson ratio	0.24	compression ratio	9.8x10-12/N
Curie temperature	310-340°C

Neodymium magnets performance

GradeResidual Induction (Br)Coercive Force (Hc)Intrinsic Coercive Force (Hci)Maximum Energy Product (BHmax)Maximum Operating Temperature 

(G)	(mT)	(Oe)	(kA/m)	(kOe) min	(kA/m) min	(MGOe)	(KJ/m3)	(°C)	(°F)
N35	11700	1170	10900	868	12	955	35	279	80	176
N38	12200	1220	11300	899	12	955	38	303	80	176
N40	12500	1250	11400	907	12	955	40	319	80	176
N42	12800	1280	11500	915	12	955	42	335	80	176
N45	13200	1320	11600	923	12	955	45	359	80	176
N48	13800	1380	11600	923	12	955	48	382	80	176
N50	14000	1400	10000	796	11	876	50	398	60	140
N52	14300	1430	10000	796	11	876	52	414	60	140
33M	11300	1130	10500	836	14	1114	33	263	100	212
35M	11700	1170	10900	868	14	1114	35	279	100	212
38M	12200	1220	11300	899	14	1114	38	303	100	212
40M	12500	1250	11600	923	14	1114	40	319	100	212
42M	12800	1280	12000	955	14	1114	42	335	100	212
45M	13200	1320	12500	995	14	1114	45	359	100	212
48M	13600	1360	12900	1027	14	1114	48	382	100	212
50M	14000	1400	13000	1033	14	1114	50	398	100	212
35H	11700	1170	10900	868	17	1353	35	279	120	248
38H	12200	1220	11300	899	17	1353	38	303	120	248
40H	12500	1250	11600	923	17	1353	40	319	120	248
42H	12800	1280	12000	955	17	1353	42	335	120	248
45H	13200	1320	12100	963	17	1353	45	359	120	248
48H	13700	1370	12500	995	17	1353	48	382	120	248
35SH	11700	1170	11000	876	20	1592	35	279	150	302
38SH	12200	1220	11400	907	20	1592	38	303	150	302
40SH	12500	1250	11800	939	20	1592	40	319	150	302
42SH	12800	1280	12400	987	20	1592	42	335	150	302
45SH	13200	1320	12600	1003	20	1592	45	359	150	302
28UH	10200	1020	9600	764	25	1990	28	223	180	356
30UH	10800	1080	10200	812	25	1990	30	239	180	356
33UH	11300	1130	10700	852	25	1990	33	263	180	356
35UH	11800	1180	10800	860	25	1990	35	279	180	356
38UH	12200	1220	11000	876	25	1990	38	303	180	356
40UH	12500	1250	11300	899	25	1990	40	319	180	356
42UH	12800	1280	11300	899	25	1990	42	335	180	356
28EH	10400	1040	9800	780	30	2388	28	223	200	392
30EH	10800	1080	10200	812	30	2388	30	239	200	392
33EH	11300	1130	10500	876	30	2388	33	263	200	392
35EH	11700	1170	11000	876	30	2388	35	279	200	392
38EH	12200	1220	11300	899	30	2388	38	303	200	392
40EH	12500	1250	11300	899	30	2388	40	319	200	392
28AH	10400	1040	9900	787	33	2624	28	223	230	446
30AH	10800	1080	10300	819	33	2624	30	239	230	446
33AH	11300	1130	10600	843	33	2624	33	263	230	446
35AH	11700	1170	11000	876	33	2624	35	279	230	446
38AH	12200	1220	11300	899	33	2624	38	303	230	446

 Advantages of our company

Advanced technology - Qutomatic imbricate cast-Hydrogenation-Airflow pulverizaing-Seal pressing-Continuous sintering.Large manufacture scale-we have andvanced machining lines with more than 3000 machines and thus can support large orders.Precious size -we can manufacture micro-miniature and max size magnets from diameter 1mm to diameter 180mm.Advanced surface treatment - Electroless plating,Electroplate,compound plating, spray, and phosphated treating.

Packaging

Packaging	Normal package- free
	Iron package-charge.

 Widely applications with product photo.

Hot selling products are miniature magnets

Certifications of ISO9001:2008

SGS report (If you need ,we are glad to send to your email.)