- Place of Origin:CN;ZHE
- Type:Permanent
- Composite:Neodymium Magnet
- Application:Industrial Magnet
- Brand Name:SDM
- Model Number:SDMNR
- Shape:round
N52 Axial Magnetized Neodymium subwoofer magnet With RoHS certificated
Professional Customized ISO/TS 16949 Certificated Strong Permanent N35-N52 (M, H, SH, EH, UH,AH) Neodymium Magnet
Sintered Neodymium-Iron-Boron (NdFeB) magnets are also referred to as “neo” magnets. They are particularly suitable for high volume production in a wide variety of shape and size. Precise dimensional control is achieved in machining processes.
Our Advantages
1)High performance
2)High Consistancy :
The Cpk of Remanence (Br) and Intrinsic Coercive Force (Hcj) are much higher than 1.67. The consistency of the surface magnetic field and magnetic flux can be controlled at +/-1%.
3)High Working Temperature :
The magnets can satisfy the working temperature requirements with excellent temperature resistance. The AH series with 40 kOe super-high coercive force can replace Smco magnets in most applications.
4.High Anti-Corrosion:
The perfect coating of Magnets can meet many anti-corrosion requirements. The salt spray test and humidity heat test of the high anti-corrosion coating Nickel+Copper+Epoxy is typically more than 1000 hours.
5)Low Weight Loss
The super-high magnets of ours have a long lifetime with the following specifications; PCT: 130℃,humidity 100%,vapor pressure 2.7bar, 20days,average low weight loss <2 mg/cm2.
Magnetization Examples:
Parameters of Neodymium Magnets
| Grade | Residual Induction (Br) | Coercive Force (Hcb) | Intrinsic Coercive Force (Hcj) | Max Energy Product (BH)max | Max Working Temp. | ||||
| T | kGs | kA/m | kOe | kA/m | kOe | Kj/m³ | MGOe | (°C) | |
| N35 | 1.17-1.22 | 11.7-12.2 | ≥ 868 | ≥ 10.9 | ≥ 955 | ≥ 12 | 263-287 | 33-36 | 80 |
| N38 | 1.22-1.25 | 12.2-12.5 | ≥ 899 | ≥ 11.3 | ≥ 955 | ≥ 12 | 287-310 | 36-39 | 80 |
| N40 | 1.25-1.28 | 12.5-12.8 | ≥ 907 | ≥ 11.4 | ≥ 955 | ≥ 12 | 302-326 | 38-41 | 80 |
| N42 | 1.28-1.32 | 12.8-13.2 | ≥ 915 | ≥ 11.5 | ≥ 955 | ≥ 12 | 318-342 | 40-43 | 80 |
| N45 | 1.32-1.38 | 13.2-13.8 | ≥ 923 | ≥ 11.6 | ≥ 955 | ≥ 12 | 342-366 | 43-46 | 80 |
| N48 | 1.38-1.42 | 13.8-14.2 | ≥ 923 | ≥ 11.6 | ≥ 955 | ≥ 12 | 366-390 | 46-49 | 80 |
| N50 | 1.40-1.45 | 14.0-14.5 | ≥ 796 | ≥ 10 | ≥ 876 | ≥ 11 | 374-406 | 47-51 | 60 |
| N52 | 1.43-1.48 | 14.3-14.8 | ≥ 796 | ≥ 10 | ≥ 876 | ≥ 11 | 390-422 | 49-53 | 60 |
| N35M | 1.17-1.22 | 11.7-12.2 | ≥ 868 | ≥ 10.9 | ≥ 1114 | ≥ 14 | 263-287 | 33-36 | 100 |
| N38M | 1.22-1.25 | 12.2-12.5 | ≥ 899 | ≥ 11.3 | ≥ 1114 | ≥ 14 | 287-310 | 36-39 | 100 |
| N40M | 1.25-1.28 | 12.5-12.8 | ≥ 923 | ≥ 11.6 | ≥ 1114 | ≥ 14 | 302-326 | 38-41 | 100 |
| N42M | 1.28-1.32 | 12.8-13.2 | ≥ 955 | ≥ 12 | ≥ 1114 | ≥ 14 | 318-342 | 40-43 | 100 |
| N45M | 1.32-1.38 | 13.2-13.8 | ≥ 955 | ≥ 12.5 | ≥ 1114 | ≥ 14 | 342-366 | 43-46 | 100 |
| N48M | 1.37-1.43 | 13.7-14.3 | ≥ 1027 | ≥ 12.9 | ≥ 1114 | ≥ 14 | 366-390 | 46-49 | 100 |
| N50M | 1.40-1.45 | 14.0-14.5 | ≥ 1033 | ≥ 13 | ≥ 1114 | ≥ 14 | 382-406 | 48-51 | 100 |
| N35H | 1.17-1.22 | 11.7-12.2 | ≥ 868 | ≥ 10.9 | ≥ 1353 | ≥ 17 | 263-287 | 33-36 | 120 |
| N38H | 1.22-1.25 | 12.2-12.5 | ≥ 899 | ≥ 11.3 | ≥ 1353 | ≥ 17 | 287-310 | 36-39 | 120 |
| N40H | 1.25-1.28 | 12.5-12.8 | ≥ 923 | ≥ 11.6 | ≥ 1353 | ≥ 17 | 302-326 | 38-41 | 120 |
| N42H | 1.28-1.32 | 12.8-13.2 | ≥ 955 | ≥ 12 | ≥ 1353 | ≥ 17 | 318-342 | 40-43 | 120 |
| N45H | 1.32-1.36 | 13.2-13.6 | ≥ 963 | ≥ 12.1 | ≥ 1353 | ≥ 17 | 326-358 | 43-46 | 120 |
| N48H | 1.37-1.43 | 13.7-14.3 | ≥ 995 | 12.5 | ≥ 1353 | ≥ 17 | 366-390 | 46-49 | 120 |
| N35SH | 1.17-1.22 | 11.7-12.2 | ≥ 876 | ≥ 11 | ≥ 1592 | ≥ 20 | 263-287 | 33-36 | 150 |
| N38SH | 1.22-1.25 | 12.2-12.5 | ≥ 907 | ≥ 11.4 | ≥ 1592 | ≥ 20 | 287-310 | 36-39 | 150 |
| N40SH | 1.25-1.28 | 12.5-12.8 | ≥ 939 | ≥ 11.8 | ≥ 1592 | ≥ 20 | 302-326 | 38-41 | 150 |
| N42SH | 1.28-1.32 | 12.8-13.2 | ≥ 987 | ≥ 12.4 | ≥ 1592 | ≥ 20 | 318-342 | 40-43 | 150 |
| N45SH | 1.32-1.38 | 13.2-13.8 | ≥ 1003 | ≥ 12.6 | ≥ 1592 | ≥ 20 | 342-366 | 43-46 | 150 |
| N28UH | 1.04-108 | 10.4-10.8 | ≥ 764 | ≥ 9.6 | ≥ 1990 | ≥ 25 | 207-231 | 26-29 | 180 |
| N30UH | 1.08-1.13 | 10.8-11.3 | ≥ 812 | ≥ 10.2 | ≥ 1990 | ≥ 25 | 223-247 | 28-31 | 180 |
| N33UH | 1.13-1.17 | 11.3-11.7 | ≥ 852 | ≥ 10.7 | ≥ 1990 | ≥ 25 | 247-271 | 31-34 | 180 |
| N35UH | 1.17-1.22 | 11.7-12.2 | ≥ 860 | ≥ 10.8 | ≥ 1990 | ≥ 25 | 263-287 | 33-36 | 180 |
| N38UH | 1.22-1.25 | 12.2-12.5 | ≥ 876 | ≥ 11 | ≥ 1990 | ≥ 25 | 287-310 | 36-39 | 180 |
| N40UH | 1.25-1.28 | 12.5-12.8 | ≥ 899 | ≥ 11.3 | ≥ 1990 | ≥ 25 | 302-326 | 38-41 | 180 |
| N42UH | 1.28-1.32 | 12.8-13.2 | ≥ 899 | ≥ 11.3 | ≥ 1990 | ≥ 25 | 318-342 | 40-43 | 180 |
| N28EH | 1.04-1.08 | 10.4-10.8 | ≥ 780 | ≥ 9.8 | ≥ 2388 | ≥ 30 | 207-231 | 26-29 | 200 |
| N30EH | 1.08-1.13 | 10.8-11.3 | ≥ 812 | ≥ 10.2 | ≥ 2388 | ≥ 30 | 223-247 | 28-31 | 200 |
| N33EH | 1.13-1.17 | 11.3-11.7 | ≥ 836 | ≥ 10.5 | ≥ 2388 | ≥ 30 | 247-271 | 31-34 | 200 |
| N35EH | 1.17-1.22 | 11.7-12.2 | ≥ 876 | ≥ 11 | ≥ 2388 | ≥ 30 | 263-287 | 33-36 | 200 |
| N38EH | 1.22-1.25 | 12.2-12.5 | ≥ 899 | ≥ 11.3 | ≥ 2388 | ≥ 30 | 287-310 | 36-39 | 200 |
| N40EH | 1.25-1.28 | 12.5-12.8 | ≥ 899 | ≥ 11.3 | ≥ 2388 | ≥ 30 | 302-326 | 38-41 | 200 |
| N28AH | 1.04-1.08 | 10.4-10.8 | ≥ 787 | ≥ 9.9 | ≥ 2624 | ≥ 33 | 207-231 | 26-29 | 230 |
| N30AH | 1.08-1.13 | 10.8-11.3 | ≥ 819 | 10.3 | ≥ 2624 | ≥ 33 | 223-247 | 28-31 | 230 |
| N33AH | 1.13-1.17 | 11.3-11.7 | ≥ 843 | ≥ 10.6 | ≥ 2624 | ≥ 33 | 247-271 | 31-34 | 230 |
| N35AH | 1.17-1.22 | 11.7-12.2 | ≥ 876 | ≥ 11 | ≥ 2624 | ≥ 33 | 263-287 | 33-36 | 230 |
| N38AH | 1.22-1.25 | 12.2-12.5 | ≥ 899 | ≥ 11.3 | ≥ 2624 | ≥ 33 | 287-310 | 36-39 | 230 |
Production Flow for Magnets
Production Line
Main QC Equipments
Packing Details
Shipping Details:
A: We have a discount price with Fedex and DHL. So if the weight is under 100Kg, you can those two shipping companes. But you can also choose TNT, UPS or any other shipping companies if you like. We'll use iron boxes to shield the magnetics force for air shipping.
B: When the weight is over 100Kg,we think sea shipping is more reasonable. We have our own forwarder, you can also entrust your own forwarder.
C: Anyway, we'll respect your choices.
Company information
SDM Magnetics has been supplying magnetic materials since 2004. We are located in Hangzhou, which is about 200 kilometers from Shanghai and Ningbo.
Our products are export to American, European and Asian countries. Our customers include motor manufacturers, industries equipments producers and so on. We are a supplier of Siemens Ltd Australia, GM, BMW, BENTLEY, and REGAL BELOIT in European.
Quality assurance from SDM: ISO9001, ISO14001, TS16949.
Products: NdFeB, SmCo, AlNiCo permanent magnets and assemblies; Bonded NdFeB and Ferrite magnets.
FAQ
1:How long will you give me the reply?
we will contact you in 12 hours as soon as we can.
2:Could I get samples?
Yes,we have materials in stock to help you to get the samples as soon as we can.
3:How about the quality of the magnets?
We have the certification of ISO,TS and ROSH,we could send the certification test of our company to you.
4:How is the price?
As we believe the quality is the most important,we will provide the best quality magnet we can with reasonable price.
5:Could you provide me the shortest lead time?
We have materials in our stock,if you really need,you can tell us and we will try our best to satisfy you.
6:Could I visit your factory?
Of course,if you need we will help you to visit our factory.
7:If I have paid,when will you help me to produce?
When we have received the money in our account,we will give you the receipt and arrange to produce immediately.