Round Hard Ferrite Permanent Magnet Speciation:
1, Material: Ferrite magnet is made of Sro or Bao and Fe2o3 by Ceramic processing technology
2, Shape: Disc, Disk, Circular
3, Grades: Y10T,Y20,Y25,Y30,Y30BH,Y35 (China standard); C1,C5,C8,C11 (U.S.A. Standard)
5.Application: Widely used in ammeter, speaker, audio, phone, TV, dynamo, DC permanent magnet motors (used in cars), etc.
Ceramic Magnets / Round Hard Ferrite Permanent Magnet Stock Selection
MPCO offers a wide selection of Ceramic magnet products. Click on your desired product type for stock product specifications.
Ceramic Ring Magnets
Our stock ceramic ring magnets are Grade 5, magnetized through the thickness.
Ceramic Discs
View a small sampling of our stock ceramic disc magnets in Grades 1, 5 or 8.
Ceramic Rectangles
We stock ceramic bar magnets in Grade 5, magnetized through the thickness.
Ceramic Block Magnets
We stock ceramic block magnets in Grade 8, magnetized through the thickness.
Ferromagnetic and ferrimagnetic materials are the ones normally thought of as magnetic; they are attracted to a magnet strongly enough that the attraction can be felt. These materials are the only ones that can retain magnetization and become magnets; a common example is a traditional refrigerator magnet. Ferrimagnetic materials, which include ferrites and the oldest magnetic materials magnetite and lodestone, are similar to but weaker than ferromagnetics. The difference between ferro- and ferrimagnetic materials is related to their microscopic structure, as explained in Magnetism.
Paramagnetic substances, such as platinum, aluminum, and oxygen, are weakly attracted to either pole of a magnet. This attraction is hundreds of thousands of times weaker than that of ferromagnetic materials, so it can only be detected by using sensitive instruments or using extremely strong magnets. Magnetic ferrofluids, although they are made of tiny ferromagnetic particles suspended in liquid, are sometimes considered paramagnetic since they cannot be magnetized.
Diamagnetic means repelled by both poles. Compared to paramagnetic and ferromagnetic substances, diamagnetic substances, such as carbon, copper, water, and plastic, are even more weakly repelled by a magnet. The permeability of diamagnetic materials is less than the permeability of a vacuum. All substances not possessing one of the other types of magnetism are diamagnetic; this includes most substances. Although force on a diamagnetic object from an ordinary magnet is far too weak to be felt, using extremely strong superconducting magnets, diamagnetic objects such as pieces of lead and even mice can be levitated, so they float in mid-air. Superconductors repel magnetic fields from their interior and are strongly diamagnetic. Round Hard Ferrite Permanent Magnet. ceramic disc magnet
There are various other types of magnetism, such as spin glass, superparamagnetism, superdiamagnetism, and metamagnetism.
Disk Round Hard Ferrite Permanent Magnet MPCO Stock Size:
| Model No. | Dimensions (mm)D*H | Model No. | Dimensions (mm)D*H |
| MFRD-001 | D5 × H (2~5) | MFRD-002 | D10 × H8 × (2~7) |
| MFRD-003 | D12 × H (2~7) | MFRD-004 | D15 × H (2~7) |
| MFRD-005 | D20 × H (2~15) | MFRD-006 | D23 × H (3~20) |
| MFRD-007 | D28 × H (3~26) | MFRD-008 | D30 × H (3~28) |
| MFRD-009 | D3~3 × H (2~32) | MFRD-010 | D37 × H (2~37) |
| MFRD-011 | D38 × H (3~32) | MFRD-012 | D40 × H (3~3~3) |
| MFRD-013 | D42 × H (3~3~3) | MFRD-014 | D45 × H (3~40) |
| MFRD-015 | D50 × H (3~45) | MFRD-016 | D55 × H (3~50) |
| MFRD-017 | D58 × H (3~50) | MFRD-018 | D60 × H (3~52) |
| MFRD-019 | D65 × H (3~60) | MFRD-020 | D70 × H (3~65) |
| MFRD-021 | D76 × H (3~70) | MFRD-022 | D80 × H (3~70) |
| MFRD-023 | D85 × H (3~76) | MFRD-024 | D90 × H (4~80) |
| MFRD-025 | D98 × H (4~80) | MFRD-026 | D105 × H (4~86) |
| MFRD-027 | D110 × H (4~86) | MFRD-028 | D150 × H (4~50) |
| MFRD-029 | D160 × H (5~46) | MFRD-030 | D200 × H (5~56) |
| MFRD-031 | D205 × H (5~56) | MFRD-032 | D225 × H (5~60) |
The above size is suitable for customer’s Magnetic Grade, Dimension tolerance: Diameter ±0.2mm, Thickness ±0.1mm
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