Ningbo Mag Spring Magnetics Ltd.315204About UsNo.99 Lipu Road Xiepu Zhenhai Ningbo ZhejiangMAG SPRING® is a subsidiary of SOUWEST MAGNETECH® (Stock No. 836961) that focuses on permanent magnets and magnetic systems developing, designing,producing and saling in Ningbo, China since 1999. The products include NdFeB Magnets, SmCo Magnets, Magnetic Tube,Pot Magnets,Grate Magnets and other magnetic systems. High Efficiency,Enterprising Spirit,Thankfulness,All win is our company Core Value.Ningbo Mag Spring Magnetics Ltd.315204About UsNo.99 Lipu Road Xiepu Zhenhai Ningbo ZhejiangMAG SPRING® is a subsidiary of SOUWEST MAGNETECH® (Stock No. 836961) that focuses on permanent magnets and magnetic systems developing, designing,producing and saling in Ningbo, China since 1999. The products include NdFeB Magnets, SmCo Magnets, Magnetic Tube,Pot Magnets,Grate Magnets and other magnetic systems. High Efficiency,Enterprising Spirit,Thankfulness,All win is our company Core Value.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ningbo Mag Spring Magnetics Ltd.Ning

Neodymium ring magnets
Neodymium ring magnets
superior neodymium magnet ring,magnet neodymium ring,neodymium magnet ring,neodymium ring magnet,ring magnet neodymium
Neodymium ring magnets
superior neodymium magnet ring,magnet neodymium ring,neodymium magnet ring,neodymium ring magnet,ring magnet neodymium

Neodymium Ring Magnet

Model NO.
Neodymium Ring Magnet
 
Neodymium ring magnets with different coating
Neodymium ring magnets are kind of thin round NdFeb magnets with a hole through the center, which also
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 itemDimension Range(mm)Tolerance
ThicknessT≤10±0.04
10±0.05
LengthL≤10±0.03
10< L≤25±0.03
25< L≤63±0.04
L>63±0.06
Chordal LengthW>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 
PropertiesRemanenceCoercive forceIntrinsic coercive forceMaximum energy productWorking
temp
UnitkGsTkOekA/mMGOekJ/m3
Nom.Min.Nom.Min.Nom.Min.Nom.Min.Nom.Min.Nom.Min.
NoGrade    kOekA/m
1N3011.2   10.8   1.12 1.08  10.510    836796    ≥12≥9553028239223≤80
2N351211.71.21.1711.310.8900860≥12≥9553533279263≤80
3N3812.612.21.261.2211.511.3915900≥12≥9553836303287≤80
4N4012.912.61.291.2611.611.4924908≥12≥9554038318303≤80
5N4213.112.91.311.2911.811.5939915≥12≥9554240342326≤80
6N4513.613.31.361.331211.6955924≥12≥9554543358342≤80
7N481413.81.41.3810.810.2860810≥11≥8754846383367≤80
8N5014.314.11.431.4110.810860794≥11≥8755048398383≤80
9N5214.514.21.451.4210.810860794≥11≥8755250414398≤60
10  N5415.114.51.511.4510.510836794≥11≥8755551438406≤100
11N35M1211.71.21.1711.310.9900868≥14≥11143533279263≤100
12N38M12.612.21.261.2211.811.3939900≥14≥11143836303287≤100
13N40M12.912.61.291.261211.6955924≥14≥11144038318303≤100
14N42M13.212.91.321.2912.412987955≥14≥11144240342326≤100
15N45M13.513.31.351.3312.612.21003971≥14≥11144543358342≤100
16N48M1413.81.41.3813.312.910591027≥14≥11144846383367≤100
17N50M14.3141.431.413.513.110741042≥14≥11145048398383≤100
18N52M14.514.21.451.4213.613.210821050≥14≥11145250414398≤80
19N30H11.210.81.121.0810.510836794≥17≥13533028239223≤120
20N33H11.711.41.171.141110.5876836≥17≥13533331263247≤120
21N35H1211.71.21.1711.310.9900868≥17≥13533533279263≤120
22N38H12.612.21.261.2211.811.3939900≥17≥13533836303287≤120
23N40H12.812.61.281.261211.6955924≥17≥13534038318303≤120
24N42H1312.81.31.2812.412987955≥17≥13534240342326≤120
25N45H13.513.31.351.3312.612.21003971≥17≥13534543358342≤120
26N48H1413.81.41.3813.312.910591027≥17≥13534846383367≤120
27N50H14.3141.431.413.513.110741042≥17≥13535048398383≤100
28N52H14.514.21.451.4213.613.210821050≥17≥13535250414398≤100
29N30SH11.210.81.121.0810.510.1836804≥20≥15953028239223≤150
30N33SH11.711.41.171.141110.6876844≥20≥15953331263247≤150
31N35SH1211.71.21.1711.311900876≥20≥15953533279263≤150
32N37SH12.3121.231.211.511.3915900≥20≥15953735295279≤150
33N38SH12.512.21.251.2211.811.4939908≥20≥15953836303287≤150
34N40SH12.712.51.271.2512.111.8963939≥20≥15954038318303≤150
35N42SH1312.81.31.2812.412987955≥20≥15954240342326≤150
36N45SH13.513.31.351.3312.612.21003971≥20≥15954543358342≤150
37N48SH1413.81.41.3813.312.910591027≥20≥15954846383367≤130
38N25UH109.610.969.69.2764732≥25≥19902522199175≤180
39N28UH10.810.41.081.0410.29.8812780≥25≥19902826223207≤180
40N30UH11.210.81.121.0810.610.1844804≥25≥19903028239223≤180
41N33UH11.511.31.151.131110.6876844≥25≥19903331263247≤180
42N35UH11.911.71.191.1711.311900876≥25≥19903533279263≤180
43N38UH12.512.21.251.2211.811.4939908≥25≥19903836303287≤180
44N40UH12.712.51.271.2512.211.8971939≥25≥19904038318303≤180
45N42UH1312.81.31.2812.412987955≥25≥19904240342326≤180
46N45UH13.513.31.351.3312.612.21003971≥25≥19904543358342≤180
47N28EH10.810.41.081.0410.49.8811780≥30≥23882826223207≤200
48N30EH11.210.81.121.0810.610.1844804≥30≥23883028239223≤200
49N33EH11.511.31.151.131110.6876844≥30≥23883331263247≤200
50N35EH11.911.71.191.1711.311900876≥30≥23883533279263≤200
51N38EH12.412.21.241.2211.811.4939908≥30≥23883836303287≤200
52N40EH12.712.41.271.2412.211.8971939≥30≥23884038318303≤200
53N28AH10.810.41.081.0410.49.8811780≥33≥26262826223207≤220
54N30AH11.210.81.121.0810.610.1844804≥33≥26263028239223≤220
55N33AH11.511.31.151.131110.6876844≥33≥26263331263247≤220
56N35AH11.911.71.191.1711.511915876≥33≥26263533279263≤220
57N38AH12.412.21.241.2211.811.4939908≥33≥26263735294279≤220
58N40AH12.712.41.271.2412.111.8971939≥33≥26263937310294≤220
 
Neodymium Ring Magnets are 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.

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