NingBo BeiLun Meank Magnetics Co.,Ltd.
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Sintered Permanent Ferrite (Ceramic) Magnets

Sintered Permanent Ferrite (Ceramic) Magnets

This is a kind of permanent magnet made of SrO or Bao and Fe2O3 as raw materials by sintering. It is called ferrite permanent magnet. Because its process is similar to that of ceramics, it is also called ceramic permanent magnet. Ferrite materials are very brittle and require special processing techniques to produce specific shapes and sizes. According to the magnetization characteristics, ferrite(ceramic)magnets can be divided into anisotropic ferrite and isotropic ferrite.That must be magnetized in a preset direction are anisotropic ferrite magnets, while that can be magnetized in any direction are isotropic ferrite magnets. The magnetic force of isotropic ferrite is weaker than that of anisotropic ferrite. We mainly supply industrial anisotropic hard ferrite magnets.

Types Of Ferrite (Ceramic) Permanent Magnets

Features & Advantages Of Ferrite (Ceramic) Magnets

Ferrite (ceramic) magnet has strong anti demagnetization performance, and can be used normally at temperatures up to 250 ℃ without demagnetization.

The original production of ferrite is relatively low, mainly because the raw materials are cheap and the production method is simple. Ferrite(ceramic) magnet is the cheapest hard industrial magnet with the largest output.

Ferrite (ceramic) magnet has strong corrosion resistance, because its raw material is oxide, it can resist the chemical corrosion of many dilute acids, alkaline solutions, organic solvents and some hydroxides without electroplating coating.

Ferrite (ceramic) magnet has medium strength magnetic force, its magnetic energy product range is 1.1MGOe to 4.0MGOe, and its magnetic force is between soft magnet and rare earth magnet.

Manufacturing Method Of Ferrite (Ceramic)Permanent Magnet

Manufacturing Method Of Ferrite (Ceramic)Permanent Magnet
Magnetic Properties & Grades Of Ferrite (Ceramic) Magnets

Material Grade

Br

HcB

HcJ

(BH)max

Work Temp

China Standard

IEC standard

mT

kA/m(min.)

kA/m(min.)

kJ/m(min.)

℃(max.)

Y10T

HF 8/22

200-235

125-160

210-280

6,5-9,5

250

Y20

HF 20/19

320-380

135-190

140-195

18,0-22,0

250

Y22H

HF 20/28

310-360

220-250

280-320

20,0-24,0

250

Y23

HF 22/30

320-370

170-190

190-230

20,0-25,0

250

Y25

HF 24/16

360-400

135-170

140-200

22,5-28,0

250

Y26H

HF 24/23

360-390

220-250

225-255

23,0-28,0

250

Y26H-2

HF 24/35

360-380

263-288

318-350

24,0-28,0

250

Y28

HF 26/16

370-400

175-210

180-220

26,0-30,0

250

Y25H

HF 26/18

360-390

175-215

215-230

24,0-27,0

250

Y28H

HF 26/24

380-400

240-260

250-280

27,0-30,0

250

Y28H-2

HF 26/26

360-380

270-295

380-405

26,0-30,0

250

Y30

HF 28/16

380-385

190-210

200-220

26,0-28,0

250

Y30BH

HF 28/28

380-400

230-275

235-290

27,0-32,0

250

Y30H-2

HF 30/26

395-415

275-300

310-335

28,5-32,5

250

Y32

HF 32/17

400-420

160-190

165-195

30,0-33,5

250

Y33

HF 32/22

410-430

220-250

225-255

31,5-35,0

250

Y33H

HF 32/25

410-430

240-270

250-275

31,5-35,0

250

Y35

-

410-430

175-195

180-200

30,0-32,0

250


FAQs Of Ferrite (Ceramic) Permanent Magnets
Q
What is the maximum working temperature of hard ferrite magnets?
A

The maximum temperature at which the ferrite magnet can be used normally without demagnetization is 250 ℃.

Q
What is the lowest working temperature of hard ferrite magnets?
A

The application of ferrite magnets has a minimum temperature limit. When the low temperature environment reaches minus 40 degrees, demagnetization begins.

Q
What are the difference between isotropic ferrite magnets and anisotropic ferrite magnets?
A

Anisotropic ferrite magnets can only be magnetized in a specific direction, while isotropic ferrite magnets can be magnetized in different directions. The magnetic force of anisotropic ferrite magnet is stronger than that of isotropic.

Q
Do ferrite(ceramic) magnets need coating?
A

Ferrite(ceramic) magnet is a permanent magnet made of oxide, which has strong corrosion resistance and no need for electroplating coating.

Get In Touch With BeiLun Meank
Get In Touch With BeiLun Meank

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