Magnetisation Grade: N40M
Material: Neodymium-Iron-Boron (NdFeB)
Magnet ID: ND-7040-N40M
Plating / Coating: Nickel (Ni-Cu-Ni) / Double Ni / Zinc (Zn) / Epoxy (Black/Gray)
Shape: Disc, Disk, Cylinder, Round
Disc Magnet Size:
Disc Total Diameter (D): 70 mm
Disc Total Height (H): 40 mm
Tolerance: ±0.05 mm
Magnetisation Direction: Axial / Radial
Residual Magnetic Flux Density (Br): 1250-1280 mT (12.5-12.8 kGs)
Energy Density (BH)max: 302-326 KJ/m³ (38-41 MGOe)
Coercivity Force (Hcb): ≥ 923 kA/m ( ≥ 11.6 kOe)
Intrinsic Coercivity Force (Hcj): ≥ 1114 kA/m ( ≥ 14 kOe)
Maximum Operation Temperature: 100 °C
Delivery Time: 14-35 days
Rare earth magnets is one kind of the permanent magnets. Material Grade of NdFeB magnets as follow
1.Magnet N-( N35, N38, N40, N42, N45, N48, N50),
2.Magnet M-(35M, 38M, 40M, 42M, 45M, 48M),
3.Magnet H-(35H, 38H, 40H, 42H, 45H),
4.Magnet SH-(30SH, 33SH, 35SH, 38SH, 40SH, 42SH),
5.Magnet UH-( 28UH, 30UH, 33UH, 35UH, 38UH),
6.Magnet EH-(28EH, 30EH, 30EH, 33EH, 35EH)
Rare earth magnets' applications:
1) Application of NdFeB magnet:Toys, package, Printer, Switchboard, Phone, voice coil motors (VCM's) in hard disk drives, high performance motors, brushless DC motors, magnetic separation, magnetic resonance imaging, sensors, loudspeakers etc.
2) The coating of NdFeB magnets can be Zn, Ni, Ni-Cu-Ni, Epoxy, CR3+ZN, NI+AG, NI+AU.
3) Our factory can also manufacture various sizes of NdFeB magnet, according to the customer's specification
