Nanjing Huajin Magnet Co., Ltd.
Nanjing Huajin Magnet Factory
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Permanent Sintered Neodymium Magnetic Countersunk Screw Hole Magnet Super Strong Magnetic Force
1) Material: sintered neodymium-iron-boron
2) Temperature: 80 - 220ºC
3) Grades: N35, N38, N40, N42, N45, N48, N50, N52 (N, M, H, SH, UH, EH, AH)
N series: N35 N38 N40 N42 N45 N48 N50 N52- 80°C
M series: 35M 38M 40M 42M 45M 48M 50M-100°C
H series: 30H 33H 35H 38H 40H 42H 44H 46H 48H-120°C
SH series: 30SH 33SH 35SH 38SH 40SH 42SH-150°C
UH series: 28UH 30UH 33UH 35UH 38UH 40UH-180°C
EH series: 28EH 30EH 33EH 35EH-200°C
AH series: N28AH N30AH N33AH N35AH-220°C
4) Shapes: block/round/ring/disk/arc/any complicated shape
5) Size: customized
6) Coating: Ni, Zn, gold, copper and epoxy
7) Applications: chargers, sensors, motors, rotors, wind turbines, wind generators, loudspeakers, magnetic hooks, magnetic holder and filters automobiles
8) Certifications: ISO 9001:2008, RoHS Directive-compliant
9) Physical property of magnetic material: high coercive force, high density, high eminence, anti-demagnetizing, strong corrosion-resistance, different series and different work temperature
10)Packing: Carton & Wooden & Pallet & By Customer Requirements
11)Delivery time: 3-10 Days After Order Confirmation
12)Payment term: T/T, L/C, PayPal, Western Union
13)Trade term: EXW, FOB, F&C, FCR, CIF, ect.
Countersunk magnet:
Countersunk magnets are extremely popular neodymium disc magnets with a countersunk central hole to allow the magnet to be easily fastened into place for a temporary or permanent fitting. All our neodymium countersunk magnets are available with a countersink on the north face of the magnet or on the south face. Remember if you are using two countersunk magnets together, like poles repel and opposite poles attract. If you want to use two magnets together to attract each other, you should select one magnet with a north pole and one magnet with a south pole on the countersunk face.
The production process:
Sintering-Machining-Coating-Magnetizing-Packing
Applications of Sintered NdFeB Magnets
| · Automotive Starters | · Microphone Assemblies |
| · Computer Rigid Disc Drives | · Particle Accelerators |
| · DC Motors | · Printers |
| · Headphone | · Relays |
| · Halbach Arrays | · Servo Motors |
| · Linear Actuators | · Stepper Motors |
| · Linear Motors | · Switches |
| · Loud Speakers | · Undulators |
| · Magnetic Bearings | · Vacuum Deposition |
| · Magnetic Couplings | · Voice Coil Motors (VCM) |
| · Magnetic Separators | · Wind Turbines |
Advantage of Magnet
High adhesive force on small area
All-rounder among neodymium magnets
Many special designs available: self-adhesive, waterproof, countersunk