Strong neodymium ring magnets or donut magnets are best choice that require a uniform aperture through the centerhole of the permanent magnet. This hole enables the ring magnets to be grouped on a cam shaft, dowel, wire or other cylindrical arm or component.
Coating: Nickel, Zinc, Nicuni,Gold,Epoxy,Teflon and So on
Dimension: 0.5mm<Diameter<250mm
Material: Neodymium Earth magnets or Neodym magnets
Lead time:7-30 Days(According to Quantity)
MOQ: 1pc
Packing: Neutral package with hard paper carton, Special for air or sea shipment according to requirement.
Applications: Ring Magnets,Neodymium Ring Magnets, Permanent Magnet ring,Circular magnets can be widely used in Motor Vehicle, Automotives Tools, Moulds, Magnetic Assemblies, Meters,Ipod, Ipad, Iphone5, Iphone4s, Electronics,Cameras, Magnetic Therapy, Appliances, Office Automation,Toys,Electrical Appliances, Gifts,Crafts, Micro-Motors, Stereos, and daily life in various fields.
Others: ROHS compliance.
Production Process: Raw Materials >Smelt >Powder process >Forming >Clotting >Testing >Machining >Electroplate >Magnetization >Checkout >Packing
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 |
10.0 |
836 |
796 |
≥12 |
≥955 |
30 |
28 |
239 |
223 |
≤80 |
||
2 |
N35 |
12.0 |
11.7 |
1.20 |
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 |
12.0 |
11.6 |
955 |
924 |
≥12 |
≥955 |
45 |
43 |
358 |
342 |
≤80 |
||
7 |
N48 |
14.0 |
13.8 |
1.40 |
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 |
10.0 |
860 |
794 |
≥11 |
≥875 |
50 |
48 |
398 |
383 |
≤80 |
||
9 |
N52 |
14.5 |
14.2 |
1.45 |
1.42 |
10.8 |
10.0 |
860 |
794 |
≥11 |
≥875 |
52 |
50 |
414 |
398 |
≤60 |
||
10 |
N30M |
11.2 |
10.8 |
1.12 |
1.08 |
10.5 |
10.0 |
836 |
794 |
≥14 |
≥1114 |
30 |
28 |
239 |
223 |
≤100 |
||
11 |
N35M |
12.0 |
11.7 |
1.20 |
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 |
12.0 |
11.6 |
955 |
924 |
≥14 |
≥1114 |
40 |
38 |
318 |
303 |
≤100 |
||
14 |
N42M |
13.2 |
12.9 |
1.32 |
1.29 |
12.4 |
12.0 |
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 |
14.0 |
13.8 |
1.40 |
1.38 |
13.3 |
12.9 |
1059 |
1027 |
≥14 |
≥1114 |
48 |
46 |
383 |
367 |
≤100 |
||
17 |
N50M |
14.3 |
14.0 |
1.43 |
1.40 |
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 |
10.0 |
836 |
794 |
≥17 |
≥1353 |
30 |
28 |
239 |
223 |
≤120 |
||
20 |
N33H |
11.7 |
11.4 |
1.17 |
1.14 |
11.0 |
10.5 |
876 |
836 |
≥17 |
≥1353 |
33 |
31 |
263 |
247 |
≤120 |
||
21 |
N35H |
12.0 |
11.7 |
1.20 |
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 |
12.0 |
11.6 |
955 |
924 |
≥17 |
≥1353 |
40 |
38 |
318 |
303 |
≤120 |
||
24 |
N42H |
13.0 |
12.8 |
1.30 |
1.28 |
12.4 |
12.0 |
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 |
14.0 |
13.8 |
1.40 |
1.38 |
13.3 |
12.9 |
1059 |
1027 |
≥17 |
≥1353 |
48 |
46 |
383 |
367 |
≤120 |
||
27 |
N50H |
14.3 |
14.0 |
1.43 |
1.40 |
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 |
11.0 |
10.6 |
876 |
844 |
≥20 |
≥1595 |
33 |
31 |
263 |
247 |
≤150 |
||
31 |
N35SH |
12.0 |
11.7 |
1.20 |
1.17 |
11.3 |
11.0 |
900 |
876 |
≥20 |
≥1595 |
35 |
33 |
279 |
263 |
≤150 |
||
32 |
N37SH |
12.3 |
12.0 |
1.23 |
1.20 |
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 |
13.0 |
12.8 |
1.30 |
1.28 |
12.4 |
12.0 |
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 |
14.0 |
13.8 |
1.40 |
1.38 |
13.3 |
12.9 |
1059 |
1027 |
≥20 |
≥1595 |
48 |
46 |
383 |
367 |
≤130 |
||
38 |
N25UH |
10.0 |
9.6 |
1.00 |
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 |
11.0 |
10.6 |
876 |
844 |
≥25 |
≥1990 |
33 |
31 |
263 |
247 |
≤180 |
||
42 |
N35UH |
11.9 |
11.7 |
1.19 |
1.17 |
11.3 |
11.0 |
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 |
13.0 |
12.8 |
1.30 |
1.28 |
12.4 |
12.0 |
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 |
11.0 |
10.6 |
876 |
844 |
≥30 |
≥2388 |
33 |
31 |
263 |
247 |
≤200 |
||
50 |
N35EH |
11.9 |
11.7 |
1.19 |
1.17 |
11.3 |
11.0 |
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 |
11.0 |
10.6 |
876 |
844 |
≥33 |
≥2626 |
33 |
31 |
263 |
247 |
≤220 |
||
56 |
N35AH |
11.9 |
11.7 |
1.19 |
1.17 |
11.5 |
11.0 |
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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