Magnetisation Grade:         N45
Material: Neodymium-Iron-Boron (NdFeB), Neodymium and Steel 
Magnet ID:              NCD-1244-N45 
Plating / Coating:  Nickel (Ni-Cu-Ni) / Double Ni / Zinc (Zn) / Epoxy        
Shape:         Disc with Countersunk Hole (countersink hole)   
Countersunk Magnet Size: 
Disc Total Diameter (D):      12 mm
Disc Total Height (H):         4 mm
Small Hole Diameter (d):      4 mm
Tolerance:         ±0.05 mm
Magnetisation Direction:    Axial  /  Radial   
Residual Magnetic Flux Density (Br): 1320-1380 mT (13.2-13.8 kGs)
Energy Density (BH)max:             342-366 KJ/m³  (43-46 MGOe) 
Coercivity Force (Hcb):              ≥ 923 kA/m ( ≥ 11.6 kOe)  
Intrinsic Coercivity Force (Hcj):    ≥ 955  kA/m ( ≥ 12 kOe)   
Maximum Operation Temperature: 80 °C 
Delivery Time:           14-35 days   

neodymium magnet with countersunk hole 
1.Grades:
N30-N50, 35M-48M, 33H-42H, 35SH-45SH, 30UH-40UH, 30EH-38EH.
2.Size:
 various customizeD
3.Coating:
Nickel,Zinc,Expoy,Gold and etc.
4.Shapes:
Cylinder and we can also manufacture the shape of magnet according to clients' requirement
5. Package:
carton or according to the customer requirments
6.Materials:
Neodymium-Iron-Boron magnets, Sintered NdFeB magnets
7.Certification:
SGS,ISO9001:2000
8.Technology:
Utilizes new Sintered NdFeB magnet techniques and equipment such as Strip casting, HDDR technology
neodymium magnet with countersunk hole
9.Magnetic properties:
a) High coercive force,
b) (BH)max from 33 to 53MGOe,
c) Max working temperature up to 230°C;