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Sintered Ferrite Magnet (Ferrite Permanent Magnet, Ceramic Magnet)
Ferrite Magnet (Ferrite Permanent Magnet, Ceramic Magnet) is manufactured by powder metallurgy/ceramic methods with SrO or BaO. They have isotropy and anisotropy parts. This permanent magnet has good demagnetization and rust resistant ability, and can work at 250℃. Ferrite can be cut and machined into arc, block, ring, cake and cylinder shape. It is mainly used in motors, speakers, medical equipments, magnetic Lifter and separator. |
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| Magnetic Properties of Sintered Hard Ferrite |
Chinese standard |
| Grade |
Remanence |
Coercivity Force |
Intrinsic Coercive Force
|
Max.Energy Product |
| Br |
Hcb |
Hcj |
（ BH ） max |
| mT |
kGs |
kA/m |
kOe |
kA/m |
kOe |
kJ/m3 |
MGOe |
| Y10T |
200-235 |
2.0-2.35 |
125-160 |
1.57-2.01 |
210-280 |
2.64-3.52 |
6.5-9.5 |
0.8-1.2 |
| Y20 |
320-380 |
3.2-3.8 |
135-190 |
1.70-2.38 |
140-195 |
1.76-2.45 |
18.0-22.0 |
2.3-2.8 |
| Y22H |
310-360 |
3.1-3.6 |
220-250 |
2.77-3.14 |
280-320 |
3.52-4.02 |
20.0-24.0 |
2.5-3.0 |
| Y23 |
320-370 |
3.2-3.7 |
170-190 |
2.14-2.38 |
190-230 |
2.39-2.89 |
20.0-25.5 |
2.5-3.2 |
| Y25 |
360-380 |
3.6-4.0 |
135-170 |
1.70-2.14 |
140-200 |
1.76-2.51 |
22.5-28.0 |
2.8-3.5 |
| Y26H |
360-390 |
3.6-3.9 |
220-250 |
2.77-3.14 |
225-255 |
2.83-3.21 |
23.0-28.0 |
2.9-3.5 |
| Y27H |
370-400 |
3.7-4.0 |
205-250 |
2.58-3.14 |
210-255 |
2.64-3.21 |
25.0-29.0 |
3.1-3.7 |
| Y30 |
370-400 |
3.7-4.0 |
175-210 |
2.20-2.64 |
180-220 |
2.26-2.77 |
26.0-30.0 |
3.3-3.8 |
| Y30BH |
380-390 |
3.8-3.90 |
223-235 |
2.80-2.95 |
231-245 |
2.90-3.08 |
27.0-30.0 |
3.4-3.7 |
| Y30-1 |
380-400 |
3.8-4.0 |
230-275 |
2.89-3.46 |
235-290 |
2.95-3.65 |
27.0-32.0 |
3.4-4.0 |
| Y30H-2 |
395-415 |
3.95-4.15 |
275-300 |
3.46-3.77 |
310-335 |
3.90-4.21 |
28.5-32.5 |
3.5-4.0 |
| Y32 |
400-420 |
4.0-4.2 |
160-190 |
2.01-2.38 |
165-195 |
2.07-2.45 |
30.0-33.5 |
3.8-4.2 |
| Y33 |
410-430 |
4.1-4.3 |
220-250 |
2.77-3.14 |
225-255 |
2.83-3.21 |
31.5-35.0 |
4.0-4.4 |
| Y35 |
400-410 |
4.00-4.10 |
175-195 |
2.20-2.45 |
180-200 |
2.26-2.51 |
30.0-32.0 |
3.8-4.0 |
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USA standard |
| Grade |
Remanence |
Coercivity Force |
Intrinsic Coercive Force |
Max.Energy Product |
| Br |
Hcb |
Hcj |
（ BH ） max |
| mT |
kGs |
kA/m |
kOe |
kA/m |
kOe |
kJ/m3 |
MGOe |
| C1 |
230 |
2.3 |
148 |
1.86 |
258 |
3.5 |
8.36 |
1.05 |
| C5 |
380 |
3.8 |
191 |
2.4 |
199 |
2.5 |
27 |
3.4 |
| C7 |
340 |
3.4 |
258 |
3.23 |
318 |
4 |
21.9 |
2.75 |
| C8(=C8A) |
385 |
3.85 |
235 |
2.95 |
242 |
3.05 |
27.8 |
3.5 |
| C8B |
420 |
4.2 |
232 |
2.913 |
236 |
2.96 |
32.8 |
4.12 |
| C9 |
380 |
3.8 |
280 |
3.516 |
320 |
4.01 |
26.4 |
3.32 |
| C10 |
400 |
4 |
288 |
3.617 |
280 |
3.51 |
30.4 |
3.82 |
| C11 |
430 |
4.3 |
200 |
2.512 |
204 |
2.56 |
34.4 |
4.32 |
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| Physical Properties of Hard Ferrite Magnet |
| Parameters |
Mark |
Unit |
Values |
Remark |
| Recoil Permeability |
rec |
Gs/Oe |
1.05-1.3 |
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| Curie Temperature |
Tc |
℃ |
≥ 450 |
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| Temp. Coefficient of Magnetic Induction |
A(Br) |
℃ -1 |
-0.2% |
0-100 ℃ |
| Temp. Coefficient of Inturensic Coerrice |
A(Hcj) |
℃ -1 |
-0.2-0.5% |
0-100 ℃ |
| Density |
D |
G/cm3 |
4.6-5.0 |
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| Specific Resistance |
|
Ω .cm |
≥ 10 6 |
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| Coefficient of Thermal Expansion |
A |
℃ -1 |
7-15X10 -6 |
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| Hardness |
HV |
-- |
480-580 |
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Sintered Ring Ferrite Magnet with Multiple Poles |
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Sintered ring ferrite magnet with multiple poles are widely used in synchronous motor, toy motor, sensor, electric instruments and so on. The magnetic field of anisotropic ring ferrite magnet reach 1600GS to 1700GS. We can also supply magnet with plastic. Your own designs are also welcome.
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Anisotropic Ring Ferrite Magnet with Radial Multipolar Magnetized
Application: Synchronous Motor, Sensor, etc. |
Anisotropic Ring Ferrite Magnet with Bipolar Multipolar Magnetized
Application: Miniature Water Pump, Electric timer, Program Controller, etc. |
Isotropic Ring Ferrite Magnet with Radial Multipolar Magnetized
Application: Electric Timer, Sensor, Miniature Electric motor, etc. |
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Injection Bonded Ferrite Magnet / Injection Complex Magnet |
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| They are made of bonded ferrite magnet powder, Plastics (PVC, nylon, pp, ect) and other materials, By injecting process, the combination can be made into flexible magnet with precise sizes and complicated shapes, which can be inserted in metal and plastic pieces. They are widely used in DC permanent motor, step motor, meter motor, printer and duplicator roller, cushion cylinder, inductor, and kinescope collector, etc. |
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