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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

Ferrite Pot Magnets

Ferrite Block Magnets

Ferrite Disc Magnets

Ferrite Ring Magnets

Ferrite Arc 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

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

What is the maximum working temperature of hard ferrite magnets?

 

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

What is the lowest working temperature of hard ferrite magnets?

 

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

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

 

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.

Do ferrite(ceramic) magnets need coating?

 

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

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