Neodymium Ring Magnet

 called NdFeB ring magnet.They feature as a wide application due to its shape and ability to assembly with
many other components  which are easy to be found in fields of sience,research, motor,audio etc.
 A coating protection is necessary due to the neodymium  disc magnets are poor in corrosion resistance.

Industrial applications
– Motors
– Lifting &Holding
–Craft,gift
–Electrical Appliances
– Audio components
–Science & Research                                                                                          


Superior neodymium magnet ring,magnet neodymium ring,neodymium magnet ring,neodymium ring magnet
Coating: Nickel, Zinc, Nicuni, Gold, Epoxy,Teflon  and So on
Dimension: 0.5mm uncoated neodymium ring magnets dimension tolerance for reference:

Dimension item	Dimension Range(mm)	Tolerance
Thickness	T≤10	±0.04
	10	±0.05
Length	L≤10	±0.03
	10< L≤25	±0.03
	25< L≤63	±0.04
	L>63	±0.06
Chordal Length	W>63	±0.05
	W>63	±0.06

Packing: Neutral package with hard paper carton, Special for air or
sea shipment according to requirement.
Production Process: Raw Materials >Smelt >Powder process >Forming >
Clotting >Testing >Machining >Electroplate >Magnetization >Checkout >Packing

 

Sintered Neodymium Magnets Property List 

Properties		Remanence				Coercive force				Intrinsic coercive force		Maximum energy product				Working temp
Unit		kGs		T		kOe		kA/m				MGOe		kJ/m3
		Nom.	Min.	Nom.	Min.	Nom.	Min.	Nom.	Min.			Nom.	Min.	Nom.	Min.	℃
No	Grade									kOe	kA/m
1	N30	11.2	10.8	1.12	1.08	10.5	10	836	796	≥12	≥955	30	28	239	223	≤80
2	N35	12	11.7	1.2	1.17	11.3	10.8	900	860	≥12	≥955	35	33	279	263	≤80
3	N38	12.6	12.2	1.26	1.22	11.5	11.3	915	900	≥12	≥955	38	36	303	287	≤80
4	N40	12.9	12.6	1.29	1.26	11.6	11.4	924	908	≥12	≥955	40	38	318	303	≤80
5	N42	13.1	12.9	1.31	1.29	11.8	11.5	939	915	≥12	≥955	42	40	342	326	≤80
6	N45	13.6	13.3	1.36	1.33	12	11.6	955	924	≥12	≥955	45	43	358	342	≤80
7	N48	14	13.8	1.4	1.38	10.8	10.2	860	810	≥11	≥875	48	46	383	367	≤80
8	N50	14.3	14.1	1.43	1.41	10.8	10	860	794	≥11	≥875	50	48	398	383	≤80
9	N52	14.5	14.2	1.45	1.42	10.8	10	860	794	≥11	≥875	52	50	414	398	≤60
10	N54	15.1	14.5	1.51	1.45	10.5	10	836	794	≥11	≥875	55	51	438	406	≤100
11	N35M	12	11.7	1.2	1.17	11.3	10.9	900	868	≥14	≥1114	35	33	279	263	≤100
12	N38M	12.6	12.2	1.26	1.22	11.8	11.3	939	900	≥14	≥1114	38	36	303	287	≤100
13	N40M	12.9	12.6	1.29	1.26	12	11.6	955	924	≥14	≥1114	40	38	318	303	≤100
14	N42M	13.2	12.9	1.32	1.29	12.4	12	987	955	≥14	≥1114	42	40	342	326	≤100
15	N45M	13.5	13.3	1.35	1.33	12.6	12.2	1003	971	≥14	≥1114	45	43	358	342	≤100
16	N48M	14	13.8	1.4	1.38	13.3	12.9	1059	1027	≥14	≥1114	48	46	383	367	≤100
17	N50M	14.3	14	1.43	1.4	13.5	13.1	1074	1042	≥14	≥1114	50	48	398	383	≤100
18	N52M	14.5	14.2	1.45	1.42	13.6	13.2	1082	1050	≥14	≥1114	52	50	414	398	≤80
19	N30H	11.2	10.8	1.12	1.08	10.5	10	836	794	≥17	≥1353	30	28	239	223	≤120
20	N33H	11.7	11.4	1.17	1.14	11	10.5	876	836	≥17	≥1353	33	31	263	247	≤120
21	N35H	12	11.7	1.2	1.17	11.3	10.9	900	868	≥17	≥1353	35	33	279	263	≤120
22	N38H	12.6	12.2	1.26	1.22	11.8	11.3	939	900	≥17	≥1353	38	36	303	287	≤120
23	N40H	12.8	12.6	1.28	1.26	12	11.6	955	924	≥17	≥1353	40	38	318	303	≤120
24	N42H	13	12.8	1.3	1.28	12.4	12	987	955	≥17	≥1353	42	40	342	326	≤120
25	N45H	13.5	13.3	1.35	1.33	12.6	12.2	1003	971	≥17	≥1353	45	43	358	342	≤120
26	N48H	14	13.8	1.4	1.38	13.3	12.9	1059	1027	≥17	≥1353	48	46	383	367	≤120
27	N50H	14.3	14	1.43	1.4	13.5	13.1	1074	1042	≥17	≥1353	50	48	398	383	≤100
28	N52H	14.5	14.2	1.45	1.42	13.6	13.2	1082	1050	≥17	≥1353	52	50	414	398	≤100
29	N30SH	11.2	10.8	1.12	1.08	10.5	10.1	836	804	≥20	≥1595	30	28	239	223	≤150
30	N33SH	11.7	11.4	1.17	1.14	11	10.6	876	844	≥20	≥1595	33	31	263	247	≤150
31	N35SH	12	11.7	1.2	1.17	11.3	11	900	876	≥20	≥1595	35	33	279	263	≤150
32	N37SH	12.3	12	1.23	1.2	11.5	11.3	915	900	≥20	≥1595	37	35	295	279	≤150
33	N38SH	12.5	12.2	1.25	1.22	11.8	11.4	939	908	≥20	≥1595	38	36	303	287	≤150
34	N40SH	12.7	12.5	1.27	1.25	12.1	11.8	963	939	≥20	≥1595	40	38	318	303	≤150
35	N42SH	13	12.8	1.3	1.28	12.4	12	987	955	≥20	≥1595	42	40	342	326	≤150
36	N45SH	13.5	13.3	1.35	1.33	12.6	12.2	1003	971	≥20	≥1595	45	43	358	342	≤150
37	N48SH	14	13.8	1.4	1.38	13.3	12.9	1059	1027	≥20	≥1595	48	46	383	367	≤130
38	N25UH	10	9.6	1	0.96	9.6	9.2	764	732	≥25	≥1990	25	22	199	175	≤180
39	N28UH	10.8	10.4	1.08	1.04	10.2	9.8	812	780	≥25	≥1990	28	26	223	207	≤180
40	N30UH	11.2	10.8	1.12	1.08	10.6	10.1	844	804	≥25	≥1990	30	28	239	223	≤180
41	N33UH	11.5	11.3	1.15	1.13	11	10.6	876	844	≥25	≥1990	33	31	263	247	≤180
42	N35UH	11.9	11.7	1.19	1.17	11.3	11	900	876	≥25	≥1990	35	33	279	263	≤180
43	N38UH	12.5	12.2	1.25	1.22	11.8	11.4	939	908	≥25	≥1990	38	36	303	287	≤180
44	N40UH	12.7	12.5	1.27	1.25	12.2	11.8	971	939	≥25	≥1990	40	38	318	303	≤180
45	N42UH	13	12.8	1.3	1.28	12.4	12	987	955	≥25	≥1990	42	40	342	326	≤180
46	N45UH	13.5	13.3	1.35	1.33	12.6	12.2	1003	971	≥25	≥1990	45	43	358	342	≤180
47	N28EH	10.8	10.4	1.08	1.04	10.4	9.8	811	780	≥30	≥2388	28	26	223	207	≤200
48	N30EH	11.2	10.8	1.12	1.08	10.6	10.1	844	804	≥30	≥2388	30	28	239	223	≤200
49	N33EH	11.5	11.3	1.15	1.13	11	10.6	876	844	≥30	≥2388	33	31	263	247	≤200
50	N35EH	11.9	11.7	1.19	1.17	11.3	11	900	876	≥30	≥2388	35	33	279	263	≤200
51	N38EH	12.4	12.2	1.24	1.22	11.8	11.4	939	908	≥30	≥2388	38	36	303	287	≤200
52	N40EH	12.7	12.4	1.27	1.24	12.2	11.8	971	939	≥30	≥2388	40	38	318	303	≤200
53	N28AH	10.8	10.4	1.08	1.04	10.4	9.8	811	780	≥33	≥2626	28	26	223	207	≤220
54	N30AH	11.2	10.8	1.12	1.08	10.6	10.1	844	804	≥33	≥2626	30	28	239	223	≤220
55	N33AH	11.5	11.3	1.15	1.13	11	10.6	876	844	≥33	≥2626	33	31	263	247	≤220
56	N35AH	11.9	11.7	1.19	1.17	11.5	11	915	876	≥33	≥2626	35	33	279	263	≤220
57	N38AH	12.4	12.2	1.24	1.22	11.8	11.4	939	908	≥33	≥2626	37	35	294	279	≤220
58	N40AH	12.7	12.4	1.27	1.24	12.1	11.8	971	939	≥33	≥2626	39	37	310	294	≤220

 

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