Magnetisation Grade:         N42
Material: Neodymium-Iron-Boron (NdFeB), Neodymium and Steel 
Magnet ID:              NPC-25-N42-Ni
Plating / Coating: Nickel (Ni-Cu-Ni) / Double Ni    
Shape: Ring / with Countersunk (Countersink)   
Pot Magnet Size: 
Pot Total Diameter (D):        25 mm
Pot Total Height (H):         6 mm
Borehole Top (d1):        4.5 mm
Borehole Bottom (d2):         9.46 mm
Countersunk Depth (h):        2.48 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:

Countersunk Magnets
Holder neodymium magnet are widely used in auto motors,computers,communication,medical equipment,
Countersunk Magnets :
Neodymium magnet assembly are the most advanced commercialized permanent magnet materials today.With far better permanent magnetic performance compared with traditional magnets,neodymium magnet assembly are the key functional materials for mordern industry.
We have the ability to manufacture a full range of Neodymium magnet from N33 to N52, and in various types.In addition to the stock shapes, sizes, and grades listed, other neodymium magnet assembly are available. Please inquire. Non-standard shapes and sizes can be machined to blueprint specifications.