
Magnet Shape: Irregular / Special-Shaped / Allotype
Material: Hard Ferrite (Ceramic)
Coating: No Coating
Grade(Chinese Stardard): Y8T
Detailed magnetic properties data:
Residual Magnetic Flux Density (Br): 2.0-2.35 KGs (mT): 200-235 mT
Intrinsic Coercivity Force (Hcj): 1.57-2.01 KOe 125-160 KA/m
Coercivity Force (Hcb): 2.64-3.51 KOe 210-280 KA/m
Energy Density (BH)max: 0.8-1.2 MGOe 6.50-9.50 KJ/m³
Operating Temperature: -40 °C to +250 °C
Magnetisation Direction: Axial / Radially magnetized
Size:
Outside Diameter(R), Inner Diameter(r), Width, Height, Thickness (Custom design data)
Tolerance: +/-2% mm
Delivery time 7-25 days
Ferrite magnets are made by wet or dry pressing and sometimes by extrusion. Wet pressing gives stronger magnetic properties (e.g. Ferrite C8). Dry pressing gives improved dimensional tolerances (e.g. Ferrite C5). The magnets are then sintered to fuse the powder together and are then machined to final shape. The extrusion method can be applied to produce arc segment shapes which are then cut to length. Sometimes new tooling is required to produce the ferrite magnets if existing tooling does not allow the shape to be produced. Typical tolerances for ferrite magnets are +/-0.25mm although +/-3% is also used.
