Magnetic properties of main grades
Grade | Residual Induction | Coercive Force | Intrinsic Coercivity | Maximum Energy Product | TW |
Br | BHC | IHC | (BH)max. |
kGs | T | kOe | kA/m | kOe | kA/m | MGOe | kJ/m3 | ℃ |
N33 | 11.3-11.7 | 1.13-1.17 | ≥10.5 | ≥836 | ≥12 | ≥955 | 31-33 | 247-263 | 80 |
N35 | 11.7-12.1 | 1.17-1.21 | ≥10.9 | ≥868 | ≥12 | ≥955 | 33-36 | 263-287 | 80 |
N38 | 12.1-12.5 | 1.21-1.25 | ≥11.3 | ≥899 | ≥12 | ≥955 | 36-39 | 287-310 | 80 |
N40 | 12.5-12.8 | 1.25-1.28 | ≥11.6 | ≥923 | ≥12 | ≥955 | 38-41 | 302-326 | 80 |
N42 | 12.8-13.2 | 1.28-1.32 | ≥11.6 | ≥923 | ≥12 | ≥955 | 40-43 | 318-342 | 80 |
N45 | 13.2-13.8 | 1.32-1.38 | ≥11.0 | ≥876 | ≥12 | ≥955 | 43-46 | 342-366 | 80 |
N48 | 13.8-14.2 | 1.38-1.42 | ≥10.5 | ≥835 | ≥11 | ≥876 | 46-49 | 366-390 | 80 |
33H | 11.3-11.7 | 1.13-1.17 | ≥10.5 | ≥836 | ≥17 | ≥1353 | 31-34 | 247-271 | 120 |
35H | 11.7-12.1 | 1.17-1.21 | ≥10.9 | ≥868 | ≥17 | ≥1353 | 33-36 | 263-287 | 120 |
38H | 12.1-12.5 | 1.21-1.25 | ≥11.3 | ≥899 | ≥17 | ≥1353 | 36-39 | 287-310 | 120 |
40H | 12.4-12.8 | 1.24-1.28 | ≥11.6 | ≥923 | ≥17 | ≥1353 | 38-41 | 302-326 | 120 |
42H | 12.8-13.2 | 1.28-1.32 | ≥12.0 | ≥955 | ≥17 | ≥1353 | 40-43 | 318-342 | 120 |
33SH | 11.3-11.7 | 1.13-1.17 | ≥10.6 | ≥844 | ≥20 | ≥1592 | 31-34 | 247-272 | 150 |
35SH | 11.7-12.1 | 1.17-1.21 | ≥11.0 | ≥876 | ≥20 | ≥1592 | 33-36 | 263-287 | 150 |
38SH | 12.1-12.5 | 1.21-1.25 | ≥11.4 | ≥907 | ≥20 | ≥1592 | 36-39 | 287-310 | 150 |
40SH | 12.4-12.8 | 1.24-1.28 | ≥11.8 | ≥939 | ≥20 | ≥1592 | 38-41 | 302-326 | 150 |
28UH | 10.2-10.8 | 1.02-1.08 | ≥9.6 | ≥764 | ≥25 | ≥1990 | 26-29 | 207-231 | 180 |
30UH | 10.8-11.3 | 1.08-1.13 | ≥10.2 | ≥812 | ≥25 | ≥1990 | 28-31 | 223-247 | 180 |
33UH | 11.3-11.7 | 1.13-1.17 | ≥10.7 | ≥852 | ≥25 | ≥1990 | 31-34 | 247-271 | 180 |
28EH | 10.4-10.9 | 1.04-1.09 | ≥9.8 | ≥780 | ≥30 | ≥2388 | 26-29 | 207-231 | 200 |
30EH | 10.8-11.3 | 1.08-1.13 | ≥10.2 | ≥812 | ≥30 | ≥2388 | 28-31 | 223-247 | 200 |
Note:
aB - reversible temperature coefficient of induction.
Shapes and sizes available (as standard):
Shapes: Blocks/plates, disks/rods, rings, segments
Two (four) poles
Note: More complicated shapes and any magnetic configuration can be provided by special order.
Standard sizes:
Blocks/plates
| Min, mm | Max, mm |
W | 2 | 70 |
T | 1.5 | 50 |
L | 1 | 15 |
Disks/rods with axial magnetic texture
| Min, mm | Max, mm |
Dia | 5 | 70 |
h | 1.2 | 12 |
Disks/rods with diametrical magnetic texture
| Min, mm | Max, mm |
Dia | 2 | 12 |
h | 1.2 | 40 |
Segments with axial magnetic texture
| Min, mm | Max, mm |
OD | 96 | 96 |
ID | 48 | 55 |
h | 5 | 12 |
Opening angle, degree | 35 | 45 |
Segments with diametrical magnetic texture
| Min, mm | Max, mm |
OD | 50 | 120 |
ID | 32 | 180 |
h | 8 | 50 |
Opening angle, degree | 30 | 60 |
Rings with axial magnetic texture
| Min, mm | Max, mm |
OD | 5 | 70 |
ID | 3 | 26 |
h | 1.2 | 40 |
neodymium disc magnet
1.Material:rare earth ,neodymium -Iron-Boron
2.Shape:Tile,Ring,Disc,Block,Cylinder,Tile,Arc,customers
3.Size:4X3mm,5X3mm,8X3mm,30X5mm,15X7mm or customized
4.Grade:N35-N52,N30M-N48M,N35SH-N45SH,etc.
5.Coating :NiCuNi, Ni,Zn,Gold,Silver,Epoxy,chemical plating Ni,etc.
6.Application: Sensors, Motors, Rotors, Wind turbines/wind generators, Loudspeakers, Magnetic hooks & holder, Filters, Automobiles, Jewelry.etc.
Neodymium magnet advantages
a) High energy
b) Very high Hc and Hci output
c) More economical than SmCo
d) Wonderful performance at ambient temperature
Transportation
All available shipping ways could be applied, by courier, by air or by sea.
Appointed shipping company or our own forwarders all could be used in shipment.
Full-way tracking the cargos for you before the goods arrive.
Buyer Guide
In order to quote you the best price quickly, please provide the following information:
1.Product size,grade,coating,etc.
2.Order quantity;
3.Attached the drawings if customized
4.Any special packing or other requirements
Our advantage
1. Fast reply: all your enquiry will be replied within 24 hours;
2. Reasonable price: we are direct manufacturer and able to offer better price;
3. Good quality: we are experienced in quality control;
4. Fast delivery time:7-20 days.
Product Description:
Permanent Neodymium Big Ring Magnet
Size: OD100 ID60 TH10
Plating: Nickle
Grade: n40
Product Photos:
the size compare to iphone 4
Curve: