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N42 Disc Neodymium NdFeB Countersunk Magnets
Product Description of N42 Disc Neodymium NdFeB Countersunk Magnets
N42 Disc Neodymium NdFeB Countersunk Magnets can be used for a wide range of applications, Great for many applications including door/cabinet closures, hanging art on a wall, and more, and can be great for small craft projects like jewelry boxes!
| Grade: N42 | Shape: Ring |
Material: NdFeB | Coating: NiCuNi (Nickel) |
Leading Time: 25-28days | Magnetizing Orientation: Axial |
Countersunk magnets can be customized or also available in regular size. For regular size products, please refer to the following table.
Grade | Diameter | Thickness | Countersunk | MOQ | Pull Force |
N42 | 10 | 2 | 3 | 20000 | 1.18-1.29 |
10 | 5 | 3.2 | 8000 | 2.93-3.20 | |
12 | 2 | 6 | 20000 | 1.28-1.40 | |
14 | 3.6 | 3 | 6500 | 3.04-3.32 | |
15 | 2 | 4.2 | 8500 | 1.78-1.94 | |
15 | 7.5 | 4.2 | 2500 | 6.67-7.29 | |
16 | 2 | 5 | 8000 | 1.88-2.05 | |
16 | 5 | 3 | 3000 | 4.85-5.30 | |
16.6 | 5.1 | 4.2 | 3000 | 5.06-5.53 | |
20 | 2 | 4 | 5000 | 2.42-2.65 | |
20 | 3 | 3.6 | 3500 | 3.65-3.98 | |
20 | 4 | 5.2 | 2500 | 4.77-5.21 | |
20 | 5 | 5.2 | 2000 | 5.96-6.52 | |
20 | 5 | 6 | 2000 | 5.89-6.44 | |
20 | 10 | 5.2 | 1000 | 11.93-13.03 |
Pull Force data is for reference only!
About The N42 Production Properties
| Grade | BHmax (MGOe) | Br (KG) | Hcb (kOe) | Hci (kOe) | Working Temp. |
N42 | 40-43 | 12.80-13.20 | ?11.5 | ?12 | ?80? |
About N42 temperature dependence demagnetization curve 
Welcome customers to customize the countersunk magnet! Please provide the technical drawings, sizes, plating, magnetizing methods and quantities of the countersunk magnet you need. About the technical drawings, please refer to the sample. 
Application of the countersunk magnet: 
Advantages of strong countersunk magnets:
1. High Grade / High performance:
GME highest grade: N54, 52M, 50H, 48SH, 42UH, 38EH, 33AH, etc. 
2. High Consistency:
The Cpk of Remanence (Br) and Intrinsic Coercive Force (Hcj) are much higher than 1.67.
The consistency of the surface magnetic field and magnetic flux can be controlled at +/-1%. 
3. High Working Temperature:
GME strong countersunk magnets can satisfy the working temperature requirements with excellent temperature resistance.
The AH series with 40 kOe super-high coercive force can replace Smco magnets in most applications. 
4. Low Weight loss:
GME super-high magnets have a long lifetime with the following specifications; PCT: 130C,humidity 100%,
vapor pressure 2.7bar, 20days,average low weight loss <2 mg/cm². 
5. High anti-corrosion:
Coating Nickel-Copper-Epoxy is typically more than 1000 hours. 
Countersunk magnets Manufacturing Processes: 
Countersunk magnets main manufacturing equipments: 
How we test our countersunk magnets: 
How we pack countersunk magnets:
Our countersunk magnets are certificated by CE, Rosh... 
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