Strong NdFeB Magnet Neodymium Disc Magnets for Sensors , Motors , Rotors
1. What is Rare Earth Magnet
Neodymium magnets are actually composed of neodymium, iron and boron (they are also referred to as NIB or NdFeB magnets). The powdered mixture is pressed under great pressure into molds. The material is then sintered (heated under a vacuum), cooled, and thenground or sliced into the desired shape. Coatings are then applied if required. Finally, the
blank magnets are magnetized by exposing them to a very powerful magnetic field in excess
of 30 KOe.
Grades :
Range: N35-N52; N35M-N50M; N35H-N48H, N35SH-N45SH; N30UH-N40UH, N30EH-N38EH
- The grade like N48-N52 could meet your requirements on strong power
- Standard one like N35 or N40 is okay for your normal applications
- Accept custom size and shape
Plating Characteristics:
|
Plating Type |
Overall Thickness |
Salt Spray Test |
Pressure Cooker Test |
|
NiCuNi (Nickel Copper Nickel) |
15-21 μm |
24 hours |
48 hours |
|
NiCu + Black Nickel |
15-21 μm |
24 hours |
48 hours |
|
NiCuNi + Epoxy |
20-28 μm |
48 hours |
72 hours |
|
NiCuNi + Gold |
16-23 μm |
36 hours |
72 hours |
|
NiCuNi + Silver |
16-23 μm |
24 hours |
48 hours |
|
Zinc |
7-15 μm |
12 hours |
24 hours |
Each individual layer of Nickel and Copper are 5-7 μm thick. The Gold and Silver plating layers are 1-2 μm
thick.
Test results shown to allow comparison between plating options.
Performance in your application under your specific test conditions may vary.
Salt Spray testing conducted with a 5% NaCl solution, at 35 .
Pressure Cooker Test (PCT) conducted at 2 atm, 120 at 100% RH.
The different size, shape, surface coating for your choise.
Our Advantages
- 14 years‘ experience in the magnet manufacturing .
- SGS certificated.
- Our own factory.
- Stable quality with reasonable price: Zero after-sale quality problem.
- professional sales serve for you: completed product program for you.
3. Manufacture process
|
Process No |
Process details |
|
1 |
Raw Material Preparation |
|
2 |
VIM |
|
3 |
Jet Milling |
|
4 |
Compacting |
|
5 |
Sintering & annealing |
|
6 |
B-H Curve Testing |
|
7 |
Machining |
|
8 |
Coating |
|
9 |
Magnetizing &Packaging |
|
10 |
Customer Support |
|
Applications :
1. Aerospace: gyroscope, GPS devices, etc.
2. Motor areas: VCM, CDDVD-ROM, generators, motors, servo motors, micro-motors, motors, vibration motors.
3. Acoustic field: the speaker, receiver, microphone, alarm, stage audio, car audio.
4. Medical Devices: Healthcare: MRI scanners, medical equipment, magnetic health products.
5.Machinery and equipment : magnetic separation, magnetic selection machine, magnetic crane, magnetic fuel saver, magnetic machinery.
6. Hardware Machinery : magnetized anti-wax, pipe descaling, magnetic fixture, automatic mahjong machine, magnetic locks, windows and doors, magnetic tool magnetic.
7. Electronics : including electric Kitchen Appliances, vacuum cleaner, hair dryer, massage, electric toys, fan, permanent magnetic actuator vacuum circuit breakers, magnetic relays, meter, water meter, sound meter, sensors and so on.
Picture show :
