1)Material:sintered NdFeB magnet disc 2)Garde:N35-N38-N40-N42-N45-N48-N50-N52 3)Shape:Disc 4)coating:Ni,Zn,Au,Ag,epoxy
magnet disc Sintered and bonded neodymium rare earth Ndfeb magnet includs
Strong neodymium/NdFeB magnet
1)Raw materail:Sintered Neodymium-Iron-Boron (NdFeB)2)Garde:N35-N52,N35M-N48M,N35H-N45H,N33SH-N42SH,N30UH-N40UH,N30EH-N35EH.3)Shape:Disc,block,cylinder,ring,bar,sphere,tile etc.size according to customer’s request.5)Coating:Ni,NiCuNi,Zn,Black Expoxy,Black Nickel,Ag,AU,etc .6)Application:Acoustics,Motors,Windmill,Transportation,IT industryequipments,Home appliance,Loudspeaker,,Communication etc.7)shipment way:By Sea/air/express are available.
Advantages: a) High energy b) Very high Hc and Hci output c) More economical than SmCo d) Wonderful performance at ambient temperature Disadvantages: a) Working temperature is below 2,000 degree b) Prone to oxidation than other magnet alloys Widely used in apparatus and instruments .including motors, sensors, microphones, electro-acoustics, magnetic separation,magnetic suckers and magnetic gifts,toys and jewelry etc.
Magnetic Properties of Sintered NdFeB Magnets
Grade | Remanence | Coercivity Force | Intrinsic Coercive Force | Max. Energy Product | maximum Operating Temp. | ||||
Br | Hcb | Hcj | £¨ BH £© max | ||||||
mT | kGs | kA/m | kOe | kA/m | kOe | kJ/m3 | MGOe | ||
N27 | 1030-1080 | 10.3-10.8 | ≥796 | ≥10.0 | ≥955 | ≥12 | 199-231 | 25-29 | 80 °C |
N30 | 1080-1130 | 10.8-11.3 | ≥796 | ≥10.0 | ≥955 | ≥12 | 223-247 | 28-31 | 80 °C |
N33 | 1130-1170 | 11.3-11.7 | ≥836 | ≥10.5 | ≥955 | ≥12 | 247-271 | 31-34 | 80 °C |
N35 | 1170-1220 | 11.7-12.2 | ≥868 | ≥10.9 | ≥955 | ≥12 | 263-287 | 33-36 | 80 °C |
N38 | 1220-1250 | 12.2-12.5 | ≥899 | ≥11.3 | ≥955 | ≥12 | 287-310 | 36-39 | 80 °C |
N40 | 1250-1280 | 12.5-12.8 | ≥907 | ≥11.4 | ≥955 | ≥12 | 302-326 | 38-41 | 80 °C |
N42 | 1280-1320 | 12.8-13.2 | ≥915 | ≥11.5 | ≥955 | ≥12 | 318-342 | 40-43 | 80 °C |
N45 | 1320-1380 | 13.2-13.8 | ≥923 | ≥11.6 | ≥955 | ≥12 | 342-366 | 43-46 | 80 °C |
N48 | 1380-1420 | 13.8-14.2 | ≥923 | ≥11.6 | ≥876 | ≥12 | 366-390 | 46-49 | 80 °C |
N50 | 1400-1450 | 14.0-14.5 | ≥796 | ≥10.0 | ≥876 | ≥11 | 382-406 | 48-51 | 60 °C |
N52 | 1430-1480 | 14.3-14.8 | ≥796 | ≥10.0 | ≥876 | ≥11 | 398-422 | 50-53 | 60 °C |
permanent rare earth NdFeB Magnet Disc