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Company NameNingbo Southern Strong Magnet Industry Co., Ltd.
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About UsCompany Profile:

Southern Strong Magnet Industry Co., Ltd is one of the leader of the professional magnets and magnetic applications manufacturer in both Ningbo, ZheJiang Province in China, specializing in manufacturering various magnets, and magnetic assemblies and providing magnetic solutions.

Office address located in F4 F4, No. 365 ZhenShi Road, Jiangshan, Yinzhou District, 315191, Ningbo, Zhejiang, China.

Factory address located in Economic Development Zone, 221300, Binhu Road, PiZhou, Jiangsu, China Jiangsu Province.

In order to match more customers demand for various magnets and magnetic applications all of the world, we built our trading company Ningbo Southern Strong Magnet Industry Co., Ltd in Ningbo City since 2019 to export various magnets and magnetic applications mainly.

Southern Strong Magnet has advanced technology and equipments. Qualities of products are ensured by strict implementation of ISO9001: 2015 and TS16949 system. We focus on environmental protection and obtained ISO14001: 2015 Environment System Certificate. All products can meet RoHS Directive. It has obtained wide reputation in China as the National High-tech Enterprises, National Enterprise of Credit, Enterprises of Municipal Mineral Demonstration and National engineering laboratories and enterprise technology centers.

Southern Strong Magnet has rich experiences in researching, designing, manufacturing and supplying magnetic products, with the purpose of professional, High quality, High Efficiency, and Advanced.

Southern Strong Magnet has the whole chain industries to make high quality various magnets and magnetic applications based on competitive prices, which is our core advantage.

We are sincerely expecting to cooperate with you for our best products, price and service!

Our solutions:

Multi domain solutions to achieve customer value.

New energy vehicle motor as the main field

Cross life, science and technology, aviation, medical and other levels.

Leading production technology, advanced monitoring equipment.

Research result of the research and development center of organic combination

The Southern Strong Magnet always been committed to creating the best quality of permanent.

Professional, comprehensive, energy saving, environment protection economy

Magnetic solution. A collection of magnetic materials, R&D, Manufacturering, sales and service. Large group of high and new technology enterprises.

Quality Control:

Aiming at "zero defect" of the products, Southern Strong Magnet have established a strict quality management system. From new product development, process design, raw material procurement, production process control and product inspection to packaging, we are strict in line of the international quality management standard. Our company has gained ISO9001, TS16949 and other relevant certifications.

1. The Sales DEP. Should Inform The Clients Within 24 Hours After Dispatching.

2. The Sales DEP. Will Keep Satisfaction Investigation Of Customers Periodically, Analyzing And Summarizing Customers&Rsquo; Requirements And Market Potential Demands.

3. Sales Dept. Will Firstly Make Feedback To Quality Dept. With Written Form Once Receiving Customers&Rsquo; Complaints About Products. Then Quality Dept. Will Make Analysis, Confirm The Related Responsible Department, Take Corrective Actions, Trace And Validate Implementing Effects And Finally Inform The Results To Sales Dept. Orderly. Lastly, Sales Dept. Will Send These Related Documents And Analysis To Customers To Get Their Satisfaction Confirmation.

4. We Provide Various Transportation: Steam-Transports, Railways, Shipping, Airplane And Quick Mails (FedEx, DHL, TNT, UPS), etc.

Contact us:

Ningbo Southern Strong Magnet Industry Co., Ltd

Address: F4, No. 365 ZhenShi Road, Jiangshan, Yinzhou District 315191
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NameMr. Cary Li
Address F4, No. 365 ZhenShi Road, Jiangshan, Yinzhou District, 315191, Ningbo, Zhejiang, China.
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Products Details

                                 Rare Earth Permanent Neodymium sintered Block Dics Cylinder Arc NdFeB Magnet
 
1. Introduction
 Neodymium-Iron-Boron(NdFeB) magnets are the most powerful and advanced commercialized permanent magnets. NdFeB magnets offers the highest Energy Product (BH)max commercially available. Their typical applications include high performance sensors, various DC motors, linear actuators, MRI, wind energy turbines, acoustic transducers, motors and generators, magneto mechanical devices, and magnetic field and imaging systems,etc. Also, magnets are protected with effective surface treatment to prevent corrosion.
2. How to Choose Permanent Magnet Materials
 It depend on magnetic force,maximim working temperature,coatings,cost,etc.
The bellow list help you select a right permanent magnet material for your applications.
3.Product Description
1. Materials: Ne-Fe-B(Neodymium Magnet)
2. Specifications and Shapes: Various Speciciations and Shapes,which depend on your request.
3. Certificate: ROHS,Reach,etc.
4.Specifications
a.Materials: Neodymium-Ferrum-Boron;
b.Grade: N35-N54, 35M-52M, 33H-50H, 33SH-45SH, 30UH-42UH, 30EH-38EH,see bellow Chart
c. Coating: Nckel, Chemical Ni,Zn, epoxy(Black color or Grey Color) gold,Silver, Ni-Cu+Black epoxy,Ni+Sn,parylene,etc;
d. Shape: Block, Disc,Cylinder Ring, Disc, Cylinder, Arc(Segment), Half Ring, and Customized Design;
e. Sizes: customized size according to customers' request
5. Grade and Magnetic Properties:
TYPICAL PROPERTY
MAGNETIC CHARACTERISTICS 
PROPERTIESBrmT (KGs)Hcb KA/m (Koe)Hcj KA/m (KOe)(BH)max KJ/m³ (MGOe)Max.TW ºC
GRADE
N331130-1170 (11.3-11.7)≥836 (≥10.5)≥955 (≥12)247-263 (31-33)80
N351170-1210 (11.7-12.1)≥868 (≥10.9)≥955 (≥12)263-287 (33-36)80
N381210-1250 (12.1-12.5)≥899 (≥11.3)≥955 (≥12)287-310 (36-39)80
N401250-1280 (12.5-12.8)≥923 (≥11.6)≥955 (≥12)302-326 (38-41)80
N421280-1320 (12.8-13.2)≥923 (≥11.6)≥955 (≥12) 318-342 (40-43)80
N451320-1380 (13.2-13.8)≥876 (≥11.0)≥955 (≥12)342-366 (43-46)80
N481380-1420 (13.8-14.2)≥835 (≥10.5)≥876 (≥11)366-390 (46-49)80
N501400-1450 (14.0-14.5)≥796 (≥10.0)≥876 (≥11) 382-406 (48-51)60
N521430-1480 (14.3-14.8)≥796 (≥10.0)≥876 (≥11) 398-422 (50-53)60
N35M1170-1220 (11.7-12.2)≥868 (≥10.9)≥1114 (≥14)263-287 (33-36)100
N38M1220-1250 (12.2-12.5)≥899 (≥11.3)≥1114 (≥14)287-310 (36-39)100
N40M1250-1280 (12.5-12.8)≥923 (≥11.6)≥1114 (≥14) 302-326 (38-41)100
N42M1280-1320 (12.8-13.2)≥955 (≥12.0)≥1114 (≥14)318-342 (40-43)100
N45M1320-1380 (13.2-13.8)≥995 (≥12.5)≥1114 (≥14)342-366 (43-46)100
N48M1360-1430 (13.6-14.3)≥1027 (≥12.9)≥1114 (≥14)366-390 (46-49)100
N50M1400-1450 (14.0-14.5)≥1033 (≥13.0)≥1114 (≥14)382-406 (48-51)100
33H1130-1170 (11.3-11.7)≥836 (≥10.5)≥1353 (≥17)247-271 (31-34)120
35H1170-1210 (11.7-12.1)≥868 (≥10.9)≥1353 (≥17)263-287 (33-36)120
38H1210-1250 (12.1-12.5)≥899 (≥11.3)≥1353 (≥17)287-310 (36-39)120
40H1240-1280 (12.4-12.8)≥923 (≥11.6)≥1353 (≥17)302-326 (38-41)120
42H1280-1320 (12.8-13.2)≥955 (≥12.0)≥1353 (≥17)318-342 (40-43)120
45H1300-1360 (13.0-13.6)≥963 (≥12.1)≥1353 (≥17)342-358 (43-46)120
48H1370-1430 (13.7-14.3)≥995 (≥12.5)≥1353 (≥17)358-390 (46-49)120
33SH1130-1170 (11.3-11.7)≥844 (≥10.6)≥1592 (≥20)247-272 (31-34)150
35SH1170-1210 (11.7-12.1)≥876 (≥11.0)≥1592 (≥20)263-287 (33-36)150
38SH1210-1250 (12.1-12.5)≥907 (≥11.4)≥1592 (≥20)287-310 (36-39)150
40SH1240-1280 (12.4-12.8)≥939 (≥11.8)≥1592 (≥20)302-326 (38-41)150
42SH1280-1320 (12.8-13.2)≥987 (≥12.4)≥1592 (≥20)318-342 (40-43)150
45SH1320-1380 (13.2-13.8)≥1003 (≥12.6)≥1592 (≥20)342-366 (43-46)150
28UH1020-1080 (10.2-10.8)≥764 (≥9.6)≥1990 (≥25)207-231 (26-29)180
30UH1080-1130 (10.8-11.3)≥812 (≥10.2)≥1990 (≥25)223-247 (28-31)180
33UH1130-1170 (11.3-11.7)≥852 (≥10.7)≥1990 (≥25)247-271 (31-34)180
35UH1180-1220 (11.8-12.2)≥860 (≥10.8)≥1990 (≥25)263-287 (33-36)180
38UH1220-1250 (12.2-12.5)≥876 (≥11.0)≥1990 (≥25)287-310 (36-39)180
40UH1240-1280 (12.4-12.8)≥899 (≥11.3)≥1990 (≥25)302-326 (38-41)180
28EH1040-1090 (10.4-10.9)≥780 (≥9.8)≥2388 (≥30)207-231 (26-29)200
30EH1080-1130 (10.8-11.3)≥812 (≥10.2)≥2388 (≥30)223-247 (28-31)200
33EH1130-1170 (11.3-11.7)≥836 (≥10.5)≥2388 (≥30)247-271 (31-34)200
35EH1170-1220 (11.7-12.2)≥876 (≥11.0)≥2388 (≥30)263-287 (33-36)200
38EH1220-1250 (12.2-12.5)≥899 (≥11.3)≥2388 (≥30)287-310 (36-39)<=200
 
Characteristic Comparisons
GradeN MHSHUHEHAH
Max.TW80ºC100ºC120ºC150ºC180ºC200ºC250ºC
PropertyLowHighHigher Supperior high Extremely highHighest
Hcj Value>=11KOe>=14KOe>=17KOe>=20KOe>=25KOe30>=11KOe>=35KOe
6.Coatings 
SurfaceCoatingColourThickness(μm)Standard ResistanceCorrosive Resistance
PCT TestSalt Spray Test
NickelNickelSilver10-2048hr or 72hr72hrEXCELLENT
Ni+Cu+Ni
ZincBlue ZincBright Blue8-2024hr24hrGOOD
Colour ZincShinny Colour
EpoxyEpoxyBlack / Grey15-2548hr96hrEXCELLENT
Ni+Cu+Epoxy
TinNi+Cu+SnSilver15-2072hr72hrSUPERIOR
ParyleneParyleneGrey15-2596hr200hrSUPERIOR
TeflonTeflonGrey10-2012hr24hrSUPERIOR
Phosphorization/Grey1-2--TEMPORARY PROETCTION
Passivation/Grey1-2--TEMPORARY PROETCTION
* PCT test(120ºC,100%RH,2.0atm);Salt Spray Test(5%NaCl,35ºC continue spray).
ItemParametersReference Value
AdditionalTemp.Coeff.of Br (α(Br))/(%/K) -0.08 ~ -0.12
Temp.Coeff.of Hcj (β(Hcj))/(%/K) -0.42 ~ -0.70
Curie Temperature (Tc)/K 310 ~ 380
Recoil Permeability (μrec)[-]1.05
MechanicalDensity (g/cm³) 7.6
Vickers Hardness (Hv) 650
Electrical Resistivity (μΩom) 1.4
Compressive Strength (Mpa) 1050
Tensile Strength (Mpa) 80
Bending Strength (Mpa) 290
Thermal Conductivity (W/(moK)) 6 ~ 8
Young's Modulus (Gpa) 160
 Coefficient of Thermal Expansive (C⊥) (10-6/K) -1.5
 Coefficient of Thermal Expansive (C‖) (10-6/K) 6.5
* Technical specifications and parameters are subjected to change without notice.



7.Directions of Magnetization:
a. Thickness Magnetized,Width Magnetized,Length Magnetized
b. Axially Magnetized 
c. Diametrally Magnetized
d. Multi-poles magnetized
e. Radially Magnetized,etc
8. Production Flow:


9.Quality Control 



10.Packages
Air Packing with iron sheet to sheild magnetic for each carton before air shipment; Ocean packing with Pallet.


11.Inquiry   
Please provide the following details when you enquiry: 
1.Which Grade you need? Or tell us what's the maximum working temperature you need? We can suggest you grade after we learn more about your project.
2.What's the shape and sizes you need?Or we can suggest you after after we learn more about your project.
3.What's the magnetized orientation you need? Or we can design it for you after after we learn more about your project.
4.Which coating you need? Or we can suggest you after we learn more about your project.
5.How many quantity you need.

Anyway,we can suggest you and design it for you too after we learn more about your project.

































Transportation: By air or ocean shipment from Ningbo or Shanghai to all around the world





We can provide you all customized magnetd, magnetic applications and design them for you too!
Solutions for  cost saving for you to choose the most suitable  magnetic products.
Welcome to your enquiry anytime and we will reply you within 24hours in time.

Contact Person:Mr Cary Li
 
 
 
  
 
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