Injection ferrite magnet is a type of bonded magnet manufactured by mixing ferrite magnetic powder with the thermoplastic binder which then enables the magnet to be injection molded just like any other plastic would be. The maximum operating temperature of PA12 based, PA6 based, and PPS based magnet can achieve 120, 150, and 180 degrees Celsius, respectively. Injection ferrite magnet also has excellent mechanical strength, dimensional accuracy, shape applicability, and integrated ability with other functional parts, which totally same as injection molded Neodymium magnet. Its magnetic performance and cost is significantly lower than injection molded Neodymium magnet and widely served for sensors and low performance motors. Anisotropic injection ferrite magnet need to apply a permanent magnetic field or an electromagnetic field to align molten compound during the injection molding process.
Magnetic Properties of Injection Ferrite Magnet
| Grade |
Remanence Br |
Coercivity Hcb |
Intrinsic Coercivity Hcj |
Max. Energy Product (BH)max |
Max. Operating Temperature Tw |
Temp. Coeff. of Br |
Density ρ |
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| mT | kGs | kA/m | kOe | kA/m | kOe | kJ/m3 | MGOe | ℃ | %/℃ | g/cm3 | |
| BZ-F1.5 | 220-240 | 2.2-2.4 | 160-167 | 2.00-2.10 | 231-240 | 2.90-3.00 | 11.6-12.4 | 1.45-1.55 |
PA12: 120 PA6: 150 |
-0.19 | 3.25 |
| BZ-F1.9 | 270-290 | 2.7-2.9 | 180-186 | 2.25-2.33 | 216-228 | 2.70-2.85 | 14.8-15.6 | 1.85-1.95 | -0.19 | 3.63 | |
| BZ-F2.0 | 280-290 | 2.8-2.9 | 184-200 | 2.30-2.50 | 216-246 | 2.70-3.10 | 15.6-16.4 | 1.95-2.05 | -0.19 | 3.70 | |
| BZ-F2.1 | 280-290 | 2.8-2.9 | 190-204 | 2.38-2.55 | 216-249 | 2.80-3.12 | 16.4-17.2 | 2.05-2.15 | -0.19 | 3.75 | |
| BZ-F1.7 (PPS) | 250-260 | 2.5-2.6 | 167-175 | 2.10-2.20 | 208-216 | 2.60-2.70 | 13.6-14.0 | 1.70-1.75 | PPS: 180 | -0.19 | 3.65 |
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