Item No.: Y28-Ferrite-2
Magnet Shape: round, disc
Material: Hard Ferrite (Ceramic)
Composite: Fe2O3 (BaCo3 or SrO3), Fe3O4 (SrCo3, SiO2)
Type: anisotropic or isotropic
Style: Sintered Permanent Magnet
Grade(Chinese Stardard): Y28
Detailed magnetic properties data:
Residual Magnetic Flux Density (Br): 3.7-4.0 KGs (mT): 370-400 mT
Intrinsic Coercivity Force (Hcj): 2.20-3.64 KOe 175-210 KA/m
Coercivity Force (Hcb): 2.26-2.76 KOe 180-220 KA/m
Energy Density (BH)max: 3.3-3.8 MGOe 26.0-30.0 KJ/m³
Operating Temperature: -40 °C to +250 °C
Magnetisation Direction: Axial / Radially magnetized
Size Can be customized according to customer drawings:
Tolerance: +/-2% mm
Delivery time 7-25 days
Tolerances
Pressed dimensions are either +/- 2% or +/- 0.5mm whichever is greater. Cut dimension are either +/- 3% or +/-0.5mm, whichever is greater. Thickness tolerances are normally ground to +/- 0.1mm.Visual imperfections such as cracks, porosity, voids, surface finish, etc., (commonly found in sintered ceramic magnets) do not constitute cause for rejection.
Magnetizing and Handling
Material of Ferrite Magnet is extremely brittle and can chip or breakable if dropped on a hard surface, or if allowed to “Jump at†on attracting object. Handle with care. The weakest grade of ceramic material is grade 1, which is typically non-oriented. Grades 5 and 8 are oriented ceramic material. Grade 8 is the strongest ceramic magnet material available (Refer to properties chart below). When making magnetic assemblies with ferrite, it is typically easier for production purposes to magnetize the product after assembly.
