Permanent magnets and electromagnets
Plastic Bonded Neodymium Magnets
This magnet is a compound of plastic material, rubbers and rare-earths.The different shapes of neodymium magnets are obtained using a process of Injection, compression and extrusion.
This magnet has a high coercivity and good magnetic stiffness.
Magnetic properties:
| Type | Br | bHc | JHc | (BH)max | M.O.T. |
| KG(mt) | KOe(kA/m) | KOe(kA/m) | °C | ||
| BN10/13 | >9.8(980) | >9.2(730) | >25(1990) | >23(190) | <180°C |
| BN10/9 | >9.8(980) | >9.2(730) | >30(2380) | >23(190) | <200°C |
| BN11/9 | >10.4(1040) | >9.8(7800) | >25(1990) | >2.6(210) | <180°C |
| BN7/3 | >10.4(1040) | >9.8(7800) | >30(2380) | >2.6(210) | <200°C |
| BN8/3 | >10.8(1080) | >10.1(800) | >20(1590) | >28(230) | <150°C |
Physical properties:
| Coefficient of thermal expansion | 0.09 - 0.1%/°C |
| Compressive strength | 4.8X 10-6/°C |
| Curie Temperature | 400°C |
| Density | 5.5 - 6.6 g/cm³ |
| Electrical Resistance | 14000 µΩ |
| Hardness | 35 - 45 - HRB |
| Maximum service temperature | 110°C |
| Magnetizing force (open circuit condition) | ≥ 25KOe |