Permanent Neodymium Rare Earth Magnet For Loudspeaker
Specification
| Grade | Br (mT) | bHc (KA/m) | jHc (KA/m) | BHmax(MGOe) | Br.Temp.Coefficient (%/) | Working Temp.() |
| N35 | 1170-1210 | ≥868 | ≥955 | 33-36 | -0.12 | ≤80 |
| N40 | 1250-1280 | ≥923 | ≥955 | 38-41 | -0.12 | ≤80 |
| N45 | 1320-1380 | ≥876 | ≥955 | 43-46 | -0.12 | ≤80 |
| N48 | 1370-1420 | ≥836 | ≥876 | 46-49 | -0.12 | ≤80 |
| N50 | 1400-1450 | ≥836 | ≥876 | 47-51 | -0.12 | ≤80 |
Advantage
1. Neodymium magnets are the most powerful commercially produced magnets.
2. NdFeB magnets have a higher Maximum Energy Product, (BH).max, which can easily reach 30 MGOe and even goes up to 50 MGOe.
3. NdFeB magnets can replace SmCo magnets in most cases, especially where operating temperature is less than 80 degrees Centigrade.
4. Very high strength.
5. Relatively low cost.
6. Compared to Alnico and SmCo magnets, relatively easy to machine.
Surface Treatment of Magnet
Type | Thickness | Color | Temperature | PCT | SST | Characteristics |
Zn | 5-10um | Blue Silver | ≤160°C | / | >48hr | Protectgion for most products |
Ni+Sn | 10-30um | Semibright Silver | ≤160°C | >48hr | >96hr | Excellent climate and salt spray resistance |
Ni | 10-30 um | Bright Silver | ≤200°C | >48hr | >96hr | Excellent climate and salt spray resistance, |
IVD AI | 10-30 um | Silver White | ≤400°C | >48hr | >288hr | Superior resistance to salt & humid atmosphere thickness equality, excellent adhesive attraction |
Epoxy | 10-30 um | Black Gray | ≤120°C | >48hr | >288hr | Well climate and salt spray resistance |
Production Flow
Package for Shipment
