Rare Earth NdFeB Disc Cylindrical Magnet N48M Color Zinc Plating, Neodymium Disk Rod Magnet, Sintered Neodymium Elevator Motor Permanent Neodymium-Iron-Boron Cylinder Magnets, Superior Cylindrical Magnets Made in China 24mm Dia x 20mm High Rare Earth NdFeB Disc Cylindrical Magnet N48M Color Zinc Plating Specifications Diameter: 24 mm (0.94″) Thickness: 20 mm (0.78″) Axially Magnetised through […]
Permanent Disc Ferrite Magnets, Y30 Y30BH Y35 Disc Ferrite Ceramic Magnets, Industrial Magnets, Disc Strontium Ferrite Permanent Magnets, Round Disc Hard Sintered Ferrite Magnets
Permanent Disc Ferrite Magnets Speciation:
1, Material: Ferrite magnet is made of Sro or Bao and Fe2o3 by Ceramic processing technology
2, Shape: Disc, Disk
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.
* Low cost, high-energy, good electric insulation and excellent resistance to demagnetization.
* High coercive force, high electric resistance, long-time stability, and economical price.
Isotropic ferrite magnets
Anisotropic ferrite magnets
1. Dry process:
By dry process, can produce isotropic & anisotropic magnets. The tool can be changed and developed easily.
2. Wet process:
By wet process, only anisotropic magnets can be produced. It is complicated to change the tool and the tooling charge is much higher.
1. Isotropic ferrite magnets are not oriented and can be magnetized in any direction;
2. Anisotropic ferrite magnets are different, they are all oriented in the manufacturing direction, and should be magnetized in the direction of orientation.
high quality disk ceramic ferrite magnets, unthreaded hole type magnetic pump coupling , Ceramic (Ferrite) Magnets are produced by calcining a mixture of iron oxide and strontium carbonate to form a metallic oxide. A multiple stage milling operation reduces the calcined material to a small particle size. The powder is then compacted in a die by one of two methods. In the first method, the powder is compacted dry which develops an isotropic magnet with weaker magnetic properties, but with better dimensional tolerances. Often times a dry pressed magnet does not require finish grinding. In the second method, the powder is mixed with water to form slurry. The slurry is compacted in a die in the presence of a magnetic field. The applied field creates an anisotropic magnet which exhibits superior magnetic properties, but usually requires finish grinding.
The compacted parts which approximate the finished geometry are then sintered at high temperatures to achieve the final fusion of the individual particles. Final shaping is achieved by diamond abrasives. Usually the pole faces of the ceramic (ferrite) magnets will be ground and the remaining surfaces will exhibit “as sintered” tolerances and physical characteristics.
Permanent Disc Ferrite Magnets 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