N30m Neodymium Block Magnet for Speaker

Model NO.: N30M
Coating Type: Zn, Cu, Au, Sliver, Epoxy, Ni-Cu-Ni
Work Temp: 80-220 Degree
Material: Rare Earth Permanent Magnet
Tolerance: +/-0.05mm
Delivery Time: Within 3-30 Working Days
Size: From 0.1mm to 200mm, Depend on Detail Dimension
Package: Boxes, Cartons as Demands
Max Working Temp: 80-230
Trademark: GXL
Transport Package: as Demands
Specification: 7.5g/cm3
Origin: China
HS Code: 85051110

 N30M High Quality  Neodymium Block Magnet For speaker
We have the fixed Long-term cooperation factory. Which is mainly produce kinds magnet. We have invested much funds for some equipment, for example injection molding machine.
And Our technology is introduced from Japan and Germany. The major technical leader in our factory is from Japan and has been studying this field for over 15 years.   Wish our best technology can solve your production problems.

A. Product Details

 N30m Neodymium Block Magnet for Speaker Neodymium  Iron, Boron 
Grades -Range: N35-N54; N35M-N52M; N35H-N50H, N30SH-N50SH; N30UH-N45UH,N28EH-N40EH
-The grade like N48-N52 could meet your requirements on strong power
-Standard one like N35 or N40 is okay for your normal applications
Orientation Through the direction of thickness or according to your needs
Size : From  0.1mm to 200mm, Length x Width x Thickness     Depend on detail dimension
Shape: Others available: Block, Ring, Cylinder, Disc, Customized shape as your design
Coating: Others available: Ni-Cu-Ni, Black Nickel, Zn, Sn, Au, Ag, Black Epoxy, etc.
Quality control:  ROSE, ROHS ISO90001, ISO/TS16949,ISO14001,OHSAS18001
Features &Advantage the most powerful permanent magnet, offers a great return for cost & performance, 
have the highest field/surface strength(Br), 
high coercively(Hc), can be easily formed into various shapes and sizes. 
Be reactive with moisture and oxygen,usualy supplied by plating (Nickel, Zinc, Passivatation, Epoxy etc.).

B. NdFeB  Magnetic Parameter table
N35-N54; N35M-N52M; N33H-N50H, N30SH-N50SH; N30UH-N45UH,
N28EH-N40EH,N28AH-N35AH,N30SH-T-N45SH-T,N30UH-T-N42UH-T
  CGS Unit   SI Unit  
Grade Remanence   
Br,  KGS		 Coercive Force    HcB,  KOe Intrinsic Coercivity
HcJ, kOe		 Max Energy Magnetic
(BH)max,  MGsOe		 Remanence Br,  T Coercive Force          
     HcB,  kA/m		 Intrinsic Coercivity HcJ,  kA/m Max Energy Magnetic  (BH)max, kJ/m3
N35 11.7  - 12.2  ≥11.0 ≥12.0 33 - 36 1.17 - 1.22  ≥876 ≥955 263  - 287
N38 12.2  - 12.6  ≥11.0 ≥12.0 36 - 39 1.22 - 1.26  ≥876 ≥955 287  - 310
N40 12.5  - 12.9  ≥11.0 ≥12.0 38 - 41 1.25 - 1.29  ≥876 ≥955 302  - 326
N42 12.9  - 13.3  ≥11.0 ≥12.0 40 - 43 1.29 - 1.33  ≥876 ≥955 318  - 342
N45 13.3  - 13.7  ≥11.0 ≥12.0 43 - 46 1.33 - 1.37  ≥876 ≥955 342  - 366
N48 13.6  - 14.1  ≥11.0 ≥12.0 46 - 49 1.36 - 1.41  ≥876 ≥955 366  - 390
N50 14.0  - 14.4  ≥11.0 ≥12.0 48 - 51 1.4 - 1.44  ≥876 ≥955 382  - 406
N52 14.3  - 14.7  ≥11.0 ≥11.0 49 - 53 1.43 - 1.47  ≥835 ≥955 390  - 422
N54 14.7  - 15.0  ≥10.4 ≥11.0 52 - 55 1.47 - 1.50  ≥835 ≥875 414  - 438
N35M 11.7  - 12.2  ≥11.2 ≥14.0 33 - 36 1.17 - 1.22  ≥892 ≥1114 263 - 287
N38M 12.2  - 12.6  ≥11.4 ≥14.0 36 - 39 1.22 - 1.26  ≥907 ≥1114 287 - 310
N40M 12.5  - 12.9  ≥11.4 ≥14.0 38 - 41 1.25 - 1.29  ≥907 ≥1114 302 - 326
 N42M  12.9  - 13.3  ≥11.4 ≥14.0 40 - 43 1.29 - 1.33  ≥907 ≥1114 318 - 342
N45M 13.3  - 13.7  ≥11.4 ≥14.0 43 - 46 1.33 - 1.37  ≥907 ≥1114 342 - 366
N48M 13.6  - 14.1  ≥11.4 ≥14.0 46 - 49 1.36 - 1.41  ≥907 ≥1114 366 - 390
N50M 14.0  - 14.4  ≥11.4 ≥14.0 48 - 51 1.4 - 1.44  ≥907 ≥1114 382 - 406
N52M 14.3  - 14.8  ≥11.4 ≥14.0 50 - 53 1.43 - 1.48  ≥907 ≥1114 398 - 422
N33H 11.4  - 11.8  ≥10.3 ≥17.0 31 - 34 1.14 - 1.18  ≥820 ≥1353 247 - 271
N35H 11.7  - 12.2  ≥10.8 ≥17.0 33 - 36 1.17 - 1.22  ≥860 ≥1353 263 - 287
N38H 12.2  - 12.6  ≥11.4 ≥17.0 36 - 39 1.22 - 1.26  ≥907 ≥1353 287 - Fireplace Mantel

JINAN LODOR CNC EQUIPMENT CO.,LTD , https://www.zgfireplace.com