Magnet Shape: Ring / Tube
Material: Hard Ferrite (Ceramic)
Coating: No Coating
Grade(Chinese Stardard): Y30BH
Detailed magnetic properties data:
Residual Magnetic Flux Density (Br): 3.8-3.9 KGs (mT): 380-390 mT
Intrinsic Coercivity Force (Hcj): 2.80-2.95 KOe 223-235 KA/m
Coercivity Force (Hcb): 2.90-3.08 KOe 231-245 KA/m
Energy Density (BH)max: 3.4-3.7 MGOe 27.0-30.0 KJ/m³
Operating Temperature: -40 °C to +250 °C
Magnetisation Direction: Axial / Radially magnetized
Size (Can be customized according to customer drawings):
Outside Diameter(D): 11 mm
Inner Diameter(d): 2.4 mm
Thickness(T): 4.5 mm
Tolerance: +/-2% mm
Delivery time 7-25 days
Measurements
1.Application: hard ferrite ring magnets for the speaker.
2.Compostion: hard ferrite powder,strontium,SrO.6Fe2O3.
3.Grade: Y28,Y29,Y30,Y32,Y33,Y34,Y35,Y36,Y38,Y40.
4.Performance: Br≥400 mT, Hcb≥230 KA/m.
5.Shape: ring,arc,segment,block.
6.Environment: RoHS.
7.Certification: ISO/TS16949,ISO9001:2000.
8.Advantages:
Fast and large batch supply capacity.
Hight & stable product property.
Competitive price.
