- Model NO.: ss-091
- Manufacturer: Ningbo Keke Magnet Co., Ltd.
- Type: N35-N50, 35m-48m, 35h-45h, 35sh-45sh, 28uh-38uh
- Coatings: Ni, Zn, Gold, Copper, Epoxy, etc
- Specification: ROHS
- HS Code: 85051110
- Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
- Name: Neodymium Ring Magne
- Product Certificate: ISO/Ts 16949:2009
- Trademark: COCO
- Origin: Ningbo China Mainland
To receive a quote for NdFeB Permanent Magnet, please provide the following details:
(01) Outer Diameter, Inner Diameter or, Degree of Angle;
(02) Thickness, Length;
(03) Grades;
(04) Coating;
(05) Tolerances and Magnetization Direction (North on the Outside Face / South on the Outside Face / Magnetized through Circumference / Magnetized through Thickness ).
(06) Testing Conditions
Specifications:
A. Materials: Neodymium-Ferrum-Boron;
B. Grades: N35-N54, 35M-52M, 33H-50H, 33SH-45SH, 30UH-42UH, 30EH-38EH, and 28AH-33AHB.
C. Coating: Various coatings to protect the magnets, such as Ni, Zn, gold, copper, epoxy, chemical, parylene and so on;
D. Shape: Block, Ring, Disc, Cylinder, Arc(Segment), Half Ring, and Customized Design;
E. Size: Customized size per your requirements, largest block length of 150mm, biggest ring of D220mm, smallest thickness of 0.5mm
F. Performance: High coercive force (Hcb) can reach 9.7kOe (772KA/M), the max operation temp (Tw) is up to 220 degree centigrade or 380 curie temperature;
G. Applications: Magnet Separators, Sensors, Motors, Rotors, Wind turbines, Wind generators, Loudspeakers, Magnetic hooks, Magnetic holder, Filters Automobiles Magnetic jewelries, toys, magnetic buttons, Magnetic therapy and so on;
MARK:
(01) Samples and small quantity are available.
(02) All the inquiries, questions and emails will be replied within 1 hour.
(03) We have stock material for standard product.
Production process of Ring Neodymium Magnet Loudspeakers:
Raw Materials-->Mixture--->Vacuum Melting--- > Powder Production--- >Molding ---> Vacuum Sintering--- > Testing--- >Mechanical Processing--- > Surface Coating--- >Magnetized--- > Inspecting--- > Packing and Shipping.
High Performance Sinterated NdFeB Magnet Item | Grade | Remanence;Br | Coercive Force;bHc | Intrisic Coercive Force;iHc | Max Energy Product;(BH)max | Working Temp.  |
||||||||
kGs | T | kOe | KA/m | kOe | KA/m | MGOe | KJ/m3 | |||||||
Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | |||||||
N | N54 | 15.1 | 14.5 | 1.51 | 1.45 | ≥10.5 | ≥836 | ≥11 | ≥876 | 55 | 51 | 438 | 406 | ≤80 |
N52 | 14.8 | 14.2 | 1.48 | 1.42 | ≥10.5 | ≥836 | ≥11 | ≥876 | 53 | 49 | 422 | 390 | ≤80 | |
N50 | 14.5 | 14.0 | 1.45 | 1.40 | ≥11.0 | ≥876 | ≥12 | ≥955 | 51 | 47 | 406 | 374 | ≤80 | |
N48 | 14.3 | 13.7 | 1.43 | 1.37 | ≥11.0 | ≥876 | ≥12 | ≥955 | 49 | 45 | 390 | 358 | ≤80 | |
N45 | 13.8 | 13.2 | 1.38 | 1.32 | ≥11.0 | ≥876 | ≥12 | ≥955 | 46 | 42 | 366 | 334 | ≤80 | |
N42 | 13.5 | 12.9 | 1.35 | 1.29 | ≥11.0 | ≥876 | ≥12 | ≥955 | 44 | 40 | 350 | 318 | ≤80 | |
N40 | 13.2 | 12.6 | 1.32 | 1.26 | ≥11.0 | ≥876 | ≥12 | ≥955 | 41 | 38 | 334 | 302 | ≤80 | |
N38 | 13.0 | 12.2 | 1.30 | 1.22 | ≥11.0 | ≥876 | ≥12 | ≥955 | 40 | 36 | 318 | 287 | ≤80 | |
N35 | 12.2 | 11.7 | 1.22 | 1.17 | ≥10.9 | ≥868 | ≥12 | ≥955 | 36 | 33 | 287 | 263 | ≤80 | |
M | N52M | 14.8 | 14.2 | 1.48 | 1.42 | ≥13.3 | ≥1059 | ≥14 | ≥1114 | 43 | 49 | 422 | 390 | ≤100 |
N50M | 14.5 | 14.0 | 1.45 | 1.40 | ≥13.1 | ≥1043 | ≥14 | ≥1114 | 41 | 47 | 406 | 374 | ≤100 | |
N48M | 14.3 | 13.7 | 1.43 | 1.37 | ≥12.8 | ≥1019 | ≥14 | ≥1114 | 49 | 45 | 390 | 358 | ≤100 | |
N45M | 13.8 | 13.2 | 1.38 | 1.32 | ≥12.4 | ≥987 | ≥14 | ≥1114 | 46 | 42 | 366 | 334 | ≤100 | |
N42M | 13.5 | 12.9 | 1.35 | 1.29 | ≥12.1 | ≥963 | ≥14 | ≥1114 | 44 | 40 | 350 | 318 | ≤100 | |
N40M | 13.2 | 12.6 | 1.32 | 1.26 | ≥11.8 | ≥939 | ≥14 | ≥1114 | 41 | 38 | 334 | 302 | ≤100 | |
N38M | 13.0 | 12.2 | 1.30 | 1.22 | ≥11.7 | ≥915 | ≥14 | ≥1114 | 40 | 36 | 318 | 287 | ≤100 | |
N35M | 12.2 | 11.7 | 1.22 | 1.17 | ≥10.9 | ≥868 | ≥14 | ≥1114 | 36 | 33 | 287 | 263 | ≤100 | |
H | N50H | 14.5 | 14.0 | 1.45 | 1.40 | ≥12.9 | ≥1027 | ≥16 | ≥1274 | 51 | 47 | 406 | 374 | ≤120 |
N48H | 14.3 | 13.7 | 1.43 | 1.37 | ≥12.7 | ≥1011 | ≥16 | ≥1274 | 49 | 45 | 390 | 358 | ≤120 | |
N46H | 14.0 | 13.4 | 1.40 | 1.34 | ≥12.5 | ≥995 | ≥17 | ≥1353 | 47 | 43 | 374 | 342 | ≤120 | |
N44H | 13.7 | 13.1 | 1.37 | 1.31 | ≥12.3 | ≥979 | ≥17 | ≥1353 | 45 | 41 | 358 | 326 | ≤120 | |
N42H | 13.5 | 12.9 | 1.35 | 1.29 | ≥12.1 | ≥963 | ≥17 | ≥1353 | 44 | 40 | 350 | 318 | ≤120 | |
N40H | 13.2 | 12.6 | 1.32 | 1.26 | ≥11.8 | ≥939 | ≥17 | ≥1353 | 42 | 38 | 334 | 302 | ≤120 | |
N38H | 13.0 | 12.2 | 1.30 | 1.22 | ≥11.5 | ≥915 | ≥17 | ≥1353 | 40 | 36 | 318 | 287 | ≤120 | |
N35H | 12.4 | 11.7 | 1.24 | 1.17 | ≥11.0 | ≥876 | ≥17 | ≥1353 | 37 | 33 | 295 | 263 | ≤120 | |
N33H | 11.7 | 11.3 | 1.17 | 1.13 | ≥10.5 | ≥836 | ≥17 | ≥1353 | 34 | 31 | 271 | 247 | ≤120 | |
SH | N45SH | 14.0 | 13.4 | 1.40 | 1.34 | ≥12.5 | ≥995 | ≥20 | ≥1592 | 47 | 43 | 374 | 342 | ≤150 |
N44SH | 13.7 | 13.1 | 1.37 | 1.31 | ≥12.3 | ≥979 | ≥20 | ≥1592 | 45 | 41 | 358 | 326 | ≤150 | |
N42SH | 13.5 | 12.9 | 1.35 | 1.29 | ≥12.1 | ≥963 | ≥20 | ≥1592 | 44 | 40 | 350 | 318 | ≤150 | |
N40SH | 13.2 | 12.6 | 1.32 | 1.26 | ≥11.8 | ≥939 | ≥20 | ≥1592 | 42 | 38 | 334 | 302 | ≤150 | |
N38SH | 12.9 | 12.2 | 1.29 | 1.22 | ≥11.5 | ≥915 | ≥20 | ≥1592 | 40 | 36 | 318 | 287 | ≤150 | |
N35SH | 12.4 | 11.7 | 1.24 | 1.17 | ≥11.0 | ≥876 | ≥20 | ≥1592 | 37 | 33 | 295 | 263 | ≤150 | |
N33SH | 12.1 | 11.4 | 1.21 | 1.14 | ≥10.7 | ≥852 | ≥20 | ≥1592 | 35 | 31 | 279 | 247 | ≤150 | |
UH | N42UH | 13.5 | 12.9 | 1.35 | 1.29 | ≥12.1 | ≥963 | ≥25 | ≥1990 | 44 | 40 | 350 | 318 | ≤180 |
N40UH | 13.2 | 12.6 | 1.32 | 1.26 | ≥11.8 | ≥939 | ≥25 | ≥1990 | 42 | 38 | 334 | 302 | ≤180 | |
N38UH | 12.9 | 12.2 | 1.29 | 1.22 | ≥11.5 | ≥915 | ≥25 | ≥1990 | 40 | 36 | 318 | 287 | ≤180 | |
N35UH | 12.4 | 11.7 | 1.24 | 1.17 | ≥11.0 | ≥876 | ≥25 | ≥1990 | 37 | 33 | 295 | 263 | ≤180 | |
N33UH | 12.1 | 11.4 | 1.21 | 1.14 | ≥10.7 | ≥852 | ≥25 | ≥1990 | 35 | 31 | 279 | 247 | ≤180 | |
N30UH | 11.6 | 10.8 | 1.16 | 1.08 | ≥10.2 | ≥812 | ≥25 | ≥1990 | 32 | 28 | 255 | 223 | ≤180 | |
EH | N38EH | 12.9 | 12.2 | 1.29 | 1.22 | ≥11.5 | ≥915 | ≥30 | ≥2388 | 40 | 36 | 318 | 287 | ≤200 |
N35EH | 12.4 | 11.7 | 1.24 | 1.17 | ≥11.0 | ≥876 | ≥30 | ≥2388 | 37 | 33 | 295 | 263 | ≤200 | |
N33EH | 12.1 | 11.4 | 1.21 | 1.14 | ≥10.7 | ≥851 | ≥30 | ≥2388 | 35 | 31 | 279 | 247 | ≤200 | |
N30EH | 11.5 | 10.8 | 1.15 | 1.08 | ≥10.2 | ≥812 | ≥30 | ≥2388 | 32 | 28 | 255 | 223 | ≤200 | |
AH | N33AH | 12.1 | 11.4 | 1.21 | 1.14 | ≥10.7 | ≥852 | ≥35 | ≥2786 | 35 | 31 | 279 | 247 | ≤230 |
N30AH | 11.5 | 10.8 | 1.15 | 1.08 | ≥10.2 | ≥812 | ≥35 | ≥2786 | 32 | 28 | 255 | 223 | ≤230 | |
N28AH | 11.2 | 10.4 | 1.12 | 1.04 | ≥9.70 | ≥772 | ≥35 | ≥2786 | 30 | 26 | 239 | 207 | ≤230 |
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