Magnet Shape: Ring / Tube
Material: Hard Ferrite (Ceramic)
Coating: No Coating
Grade(Chinese Stardard):         Y33

Detailed magnetic properties data:
Residual Magnetic Flux Density (Br): 4.1-4.3 KGs (mT):  410-430 mT
Intrinsic Coercivity Force (Hcj):    2.76-3.14 KOe    220-250 KA/m
Coercivity Force (Hcb):              2.83-3.20 KOe    225-255 KA/m
Energy Density (BH)max:              3.9-4.4 MGOe     31.5-35.0 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):  100mm
Inner Diameter(d):    50mm
Thickness(T):            12mm
Tolerance:         +/-2% mm
Delivery time           7-25 days
Measurements

1.Ferrite ring magnet
2.Material:Ferrite Permanent Magnet
3.Certificate:ISO9001
4.Good Service
5.High quality
Ferrite ring magnet
Product Name:
Ceramic Magnet, Sintered Hard Ferrite Magnet
Features:
A low cost alternative to other magnetic materials, offers relatively high operating temperatures and good resistance to corrosion & demagnetization. However, it has lower energy levels (Br) and is brittle in nature.
Applications:
DC motors, Louder-speaks, Magnetic Separators, Automotive Sensors, Educations, etc.