Neodymium Speaker Magnet

  • Material : NdFeB or Neodymium Iron Boron
  • Shape of magnet: Ring
  • Grade of magnet: N50
  • Dimension :OD65 x ID50 x 5mm
  • Tolerance: +/-0.1mm
  • Plating : Black Epoxy Rsin
  • Operating Temp(Max).: 80℃ (176℉)
  • Maximum Br: 14600Guass
  • Magnetization Direction: Axially Magnetized.
  • Application:Suitable for Audio system and louspeaker
  • Other size and grade are available on request
N50 Grade  OD65 x ID50 x 5mm  Big Ring Magnet

Grade of Neodymium Magnet                                 
N33   N35  N38  N40  N42  N45  N48  N50  N52         Working Temp. 80℃ (176℉)
33M   35M  38M  40M  42M  45M  48M  50M               Working Temp. 100℃ (212℉)
33H   35H  38H  40H  42H  45H  48H  50H                 Working Temp. 120℃ (248℉)
33SH  35SH  38SH  40SH  42SH  45SH                     Working Temp. 150℃(302℉)
30U   33UH  35UH  38UH  40UH  42UH                      Working Temp. 180℃ (356℉)
30EH  33EH  35EH  38EH  40EH                                Working Temp. 200℃ (392℉)
28AH  30AH  33AH                                                  Working Temp. 230° C (446℉)

Dimension range of Disc Magnet
Outer diameter:  2.0mm ~ 200mm
Inner diameter:   2.0mm ~ 80mm
Thickness :   1.0mm ~ 50mm

Tolerance of Neodymium Magnet
Standard tolerance : +/-0.1mm  (±0.004” )
Also stricter tolerance are possible if specially requested.

Surface coating of Neodymium Magnet
Nickle, Zinc, Ni-Cu-Ni, Silver, Gold, Black or Grey epoxy resin, Passivation, Parylene, Ni+Sn
Also provide special suface protection to neodymium magnet, Iron cover, Plastic coated,
Rubber coated

Packaging and Delivery
Packaging: Neutral box packaging, inner box , foam inside and other protection, to ensure
safely of transportation.
Delivery time: 8 ~ 20days, depend on customer’s order quantity.