Magnetisation Grade: N42
Material: Neodymium-Iron-Boron (NdFeB), Neodymium and Steel
Magnet ID: NPCB-25-N42-Zn
Plating / Coating: zinc, zink
Shape: Ring / with Cylindrical Borehole (Hole)
Pot Magnet Size:
Pot Total Diameter (D): 25 mm
Pot Total Height (H): 8 mm
Borehole Top (d1): 5.5 mm
Borehole Bottom (d2): 9 mm
Cylindrical Depth (h): 6 mm
Tolerance: ±0.1 mm
Magnetisation Direction: Axial
Residual Magnetic Flux Density (Br): 13.0-13.4 KGs (T): 1.30-1.34 T
Energy Density (BH)max: 40-43 MGOe 318-342 KJ/m³
Coercivity Force (Hcb): ≥10.8 KOe ≥860 KA/m
Intrinsic Coercivity Force (Hcj): ≥12 KOe ≥955 KA/m
Maximum Operation Temperature: 80 °C
Delivery Time: 14-35 days
Measurements:
Sintered Neodymium Magnet: is one of the high performance rare earth permanent magnets, which use neodymium (Nd), iron (Fe), and boron (B) as their main ingredients.
1. The NdFeB magnet has high remanence, high coercive force, high energy product and high ratio between performance value and product cost.
2. It can be easily formed into various sizes.
3. Smaller size and lighter weight in designing devices
4. Grade: N35-N52, 33M-50M, 30H-48H, 30SH-45SH, 30UH-40UH, 28EH-38EH, 30AH-33AH.
5.High energy range from 30MGOe to 53MGOe with wonderful coercive force
6. For most applications, coating or plating is recommended.
7. Coatings: Ni, Zn, gold, copper, epoxy, chemical, parylene and so on.
8. Advantages:
a) High energy
b) Very high Hc and Hci output
c) More economical than SmCo
d) Wonderful performance at ambient temperature
9. Disadvantages:
a) Working temperature is below 220°C.
b) Prone to oxidation than other magnet alloys
10. Applications: Widly used in industrial areas and Micro products, such as Motor, sensors, loudspeaker, windmill, Auto, National defence, Speaker, Computer, Biology project, Medical treatment, Instrument and Meter etc.
