Magnet Shape: Pot with Hook / Eyelet
Material: Hard Ferrite (Ceramic) and Steel
Coating: Zinc(Zn) / Nickel(Ni)
Grade(Chinese Stardard): Y28
Magnet ID: FPIT-10-Y28-Zn
Detailed magnetic properties data:
Residual Magnetic Flux Density (Br): 3.70-4.00 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
Pot Magnet Size:
Pot diameter D 10 mm
Neck diameter d 5 mm
Pot height H1 4,5 mm
Total height without hook H2 11,5 mm
Total height with hook H3 26 mm
Thread M M3
Hook opening width a 3.5 mm
Hook inside diameter b 4 mm
Tolerance: +/-2% mm
Delivery time 7-25 days
Specification of China manufacturer Y25 ceramic barium ferrite magnet :
Ferrite or ceramic magnets are still the most widely used magnets with a maximum energy product of 1 to ± 4.3 MGOe.
Due to the environmental requirements which are becoming more stringent barium ferrite has been replaced by strontium ferrite during the last years.
Ferrite is the cheapest magnetic material and has a high corrosion resistance making coating unnecessary.
This magnetic material is hard and fragile and must be processed with diamond, preferably when it is not in a magnetic state.
Because it might shrink during the sinter process a tolerance of ± 2 % should be taken into account when determining the dimensions. If grinded ± 0.1 mm.
Tighter tolerance is available on request.
Ferrite magnets can be supplied both isotropically and anisotropically, they are used in the most divergent products such as loudspeakers, magnetrons, measuring devices, toys, engines, reed contacts etc.
The maximum temperature of use is 225°C depending on the specification, dimensions and system design.
For specifications: See the table below.
The minimum dimension for block magnets is 2 x 2 x 2 mm, whereas the maximum dimension for this type is 270 x 90 x 25.4 mm.
The minimum dimension for disc magnets is D 2 x 1 mm, whereas the maximum dimension for this type is D 156 x 25.
The minimum dimension for ring magnets is D8 x 2.5 x 3 mm, whereas the maximum dimension for this type is D 256 x D* x 25 mm (* inside diameter in consultation).
