Ningbo Keke Magnet Industry Co., Ltd. >> Ring Sintered Nedomium Magnet Material for Motor Magnet

Ring Sintered Nedomium Magnet Material for Motor Magnet

Ring Sintered Nedomium Magnet Material for Motor Magnet
Price: US $ 0.01/Piece
Trade Terms: FOB,CFR,CIF
Min Order: 1/Piece
Pay Type: L/C,T/T
Established in 2004, Ningbo Keke Magnet Technology Co., Ltd is a professional Neodymium magnet manufacturer with 2000 metric tons annually. The products are widely used in Servo motors, Linear motors, High speed motors, Oil field motors, Step motors, Micro motors

Speaker Motor Magnets Description

Neodymium Loudspeakers have several advantages over traditional ceramic magnet designs. Typically they are much lighter and more powerful than conventional speakers which use ferrite, AlNiCo or Samarium Cobalt magnets. Neodymium speakers often have motors that use a small cylindrical slug or ring magnet that is encased in a low carbon steel pot structure. The magnetic flux which is already more than 10 times higher than any other material is concentrated across the "gap" where the voice coil moves back and forth. The strength of the motor (BxL) increases so efficiency goes up and the whole magnetic structure becomes more compact. Typically Neo speakers have the additional benifit of not causing any (EMI) interference from stray magnetic flux so by definition they are video shielded. Neodymium magnets are part of the material science of the future with applications growing everyday. One example is the fast growing earbud market. Neo has made it possible to essentially shrink down headphones to sizes that will fit inside your ears. In addition they are also efficient enough to produce high volume sound from small battery powered devices with low amplifier output such as walkmans, MP3 players, tablets, laptops and cell phones.

Speaker Motor Magnets 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 (Design proper magnets for clients specific requirements);
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 230 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;

Speaker Motor Magnets Directions of Magnetization

A. Thickness Magnetized
B. Axially Magnetized
C. Diametrally Magnetized
D. Multi-poles magnetized
E. Radial Magnetized
F. Customzied specific requirements magnetized

Packing: Standard air and vessel package or according to customers's request
Sample: Available (It's free within USD 48)

We specialized in Neodymium Speaker Motor Magnets Design and produce. If you would like more information please contact us.
If you customized Speaker Motor Magnets, please send the specifications or your drawing to the mail.

Contact Person: Candy Sun
MB: 0086-13957886507
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
 
Prod Model: sqj-039
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Product Name: Speaker Motor Magnets
Size: Customed
Max Operation Temp: 220 Degree Centigrade
Product Certificate: RoHS
Company Certificae: Isotsi16949:2009
Coatings: Ni, Zn, Gold, Copper, Epoxy, etc
Maxmium Br: 12.1kgs
Hcb: 10.7koe
Hcj: 35koe
Type: Permanent
Application: Motor Magnet
Coating: Black Epoxy
Shape: Ring Magnets
About Us
Established in 2004, Ningbo Keke Magnet Technology Co., Ltd is a professional Neodymium magnet and AlNiCo magnet high-tech enterprise, . Our company commits to the R&D, production and application of rare earth permanent magnetic materials. Our production site, with an area of 30000 square meters, is located in Yuyao, Ningbo City, Zhejiang Province, China.
Capabilities
Keke Magnet owns the annual capacity of 2000 metric tons productivity of various types of high-grade magnets. The Neodymium magnet covers N35-N54, N35M-N52M, N33H-N50H, N33SH-N45SH, N30UH-N42UH, N30EH-N38EH, N28AH-N33AH; AlNiCo magnet covers AlNiCo3----AlNiCo9, AlNiCo3----AlNiCo8HC. The products are widely used in motors, wind power, the elevator traction machine, medical equipment, speakers, magnetic transmission, aerospace and other fields. Sold to the Yangtze River Delta, the Pearl River Delta, and all through the country. they are also widely exported to the North America, Europe, Southeast and many other developing countries.
Quality Control
The quality is the life of the enterprise; We are certified with ISO/TS16949: 2009 and RoHS. The consistently high quality and low cost are guaranteed.
Our belief
We adhere to the enterprise spirit that sincerity uppermost, continuous improvement, quality first, customer satisfaction. Scientific management and the principle of equality, mutual benefit and win-win market strategy are promoted. We believe that we can establish long-term friendly business partnership and promote the development of both trade and friendship to create the brilliancy together!

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