Magnet Shape: Ring / Tube
Material: Hard Ferrite (Ceramic)
Coating: No Coating
Grade(Chinese Stardard): Y25
Detailed magnetic properties data:
Residual Magnetic Flux Density (Br): 3.6-4.0 KGs (mT): 360-400 mT
Intrinsic Coercivity Force (Hcj): 1.70-2.14 KOe 135-170 KA/m
Coercivity Force (Hcb): 1.76-2.51 KOe 140-200 KA/m
Energy Density (BH)max: 2.8-3.5 MGOe 22.5-28.0 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): 50 mm
Inner Diameter(d): 25 mm
Thickness(T): 10 mm
Tolerance: +/-2% mm
Delivery time 7-25 days
Measurements
All ferrite ring magnets on this page are axially magnetized. This means that the poles are respectively located on the flat circular surface.
Ferrite or neodymium magnets?
Compared to neodymium magnets, the adhesive force of ferrite magnets is much weaker. On the other hand, they are cheaper, suitable for outside use (rust-resistant) and can take heat up to 250 °C. If size and volume are less important than price, ferrite magnets can be a good alternative to neodymium magnets.
