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  • Model NO.: 08
  • Shape: Ring
  • Trademark: Bestway
  • Origin: Ningbo, China
  • Application: Speaker Magnet, Industrial Magnet, Motor Magnet
  • Product Name: Speaker Ceramic Ring Magnet/Ferrite Ceramic Ring M
  • Specification: CE, ROSH
  • HS Code: 85051190
Speaker ceramic ring magnet

The Ferrite Ring Magnet could be used in a wide rang of applications because of their high coercively and low cost. They are widely used in reed switches, loud speakers, security system audio, motors, magnetic couplings, for sensing, loudspeakers, holding-magnet systems, crafts, magnetic therapy, novelties.


The following are the regular big size of the ferrite ring magnet:
D220xd110x25mm
D220xd110x24mm
D200xd108x24mm
D200xd86x20mm
D169xd86x20mm
D134xd59x20mm

Usually they are supplied without magnetism.

We also could produce the ferrite ring magnets according to your size, grade...

You are welcome to contact us for more information.
Mostly Used national standard - SJ285-77 permanent ferrite magnet standard


Grade
 		 Value(min/typical in our factory

Br
 
Hcb(BHC)
 
Hcj(IHC)
 
(BH)max
 

MT
 
KG
 
KA/m
 
Koe
 
KA/m
 
KOe
 
Kj/m 3
 
MGOe
 
Y10T(=C1) 200/218 2.00/2.18 125/145 1.57/1.82 210/250 2.64/3.14 6.5/8.0 0.8/1.0
Y25 360/370 3.60/3.70 135/150 1.70/1.88 140/170 1.76/2.14 22.5/25.3 2.8/3.2
Y30(=C5) 380/385 3.80/3.85 191/210 2.40/2.64 199/220 2.50/2.51 26.0/28 3.4/3.7
Y30BH 380/390 3.80/3.90 223/235 2.80/2.95 231/245 2.90/3.08 27.0/30.0 3.4/3.7
Y33 410/420 4.10/4.20 220/235 2.77/2.95 225/240 2.83/3.01 31.5/33.0 4.0/4.2
Y35 400/410 4.00/4.10 175/195 2.20/2.45 180/200 2.26/2.51 30.0/32.0 3.8/4.0
C8(=C8A) 385/390 3.85/3.90 235/255 2.95/3.20 242/265 3.05/3.33 27.8/30.0 3.5/3.7
C10 400/410 4.00/4.10 288/300 3.62/3.77 280/287 3.51/3.60 30.4/31.9 3.8/4.0


Speaker Ceramic Ring Magnet/Ferrite Ceramic Ring Magnet
 

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