Basic Info.

Model NO.

3mm

Origin

Dongguan

HS Code

8505111000

Model NO.

3mm

Origin

Dongguan

HS Code

8505111000

Product Desciption

We can provide isotropic and anisotropic magnets in shapes of block, disc, ring, tile with different directions of magnetization according to customer's demand. 
Strong Permanent Sintered NdFeB Block Magnet
Applications:  NdFeb block Magnet are Widely used in different applications, such as sensors, motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on.
Material: NdFeB (Neodymium Iron Boron)
Shape:  Block ( Disc,  Ring, Countersunk, Segment, Trapezoid, Irregular shapes  are available, Customized shapes for Sintered NdFeB  Magnet are also available)
Tolerance in size: +/-0.1mm (+/-0.05mm available)
Type of coating: Nickel, Ni-Cu-Ni, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and so on.
Grade: N35-N50; N33M-N50M; N33H-N48H; N30SH-N45SH;N30UH-N40UH; N28EH-N38EH,N28AH-N35AH
Direction  of magnetization: Through the thickness
Neodymium-iron-boron magnet is one kind of the permanent magnets.
Material Grade of NdFeB magnets:
Magnet N-( N35, N38, N40, N42, N45, N48, N50),
Magnet M-(35M, 38M, 40M, 42M, 45M, 48M),
Magnet H-(35H, 38H, 40H, 42H, 45H),
Magnet SH-(30SH, 33SH, 35SH, 38SH, 40SH, 42SH),
Magnet UH-( 28UH, 30UH, 33UH, 35UH, 38UH),
Magnet EH-(28EH, 30EH, 30EH, 33EH, 35EH),

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.

project ccoating	Coating thickness	color	Service temperature	PCT	Damp heat resistance	Salt fog resista-nce	Corrosion resistance
Blue white zinc	8-15μm	Bluish white	≤160ºC			>48hr	general
Color zinc	10-15μm	Iridescent	≤160ºC			>72hr	general
Nickel	20-30μm	silvery	≤200ºC	>500hr	>500hr	>200hr	excellent
Ni-Cu-Ni	20-30μm	silvery	≤200ºC	>48hr	>500hr	>72hr	good
Ni-Sn	20-30μm	silvery	≤160ºC	>96hr	>500hr	>72hr	good
epoxy	10-30μm	black	≤120ºC	>48hr	>500hr	>96hr	excellent
Phosphating	1-3μm	Black gray					bad
Ni-Au	10-20μm	Golden		>96hr	>500hr	>72hr	excellent