Gold Member Since 2015
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Zhuzhou Summit New Material Co., Ltd.

Ferrite Magnets, Magnet, Ferrite manufacturer / supplier in China, offering Ferrite Ring Magnet Large Speaker Magnet, Permanent NdFeB Magnet Bar Od22, Block Neodymium Magnet with Parylene Coating and so on.

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Supplier Homepage Product Ferrite Magnet Ferrite Ring Magnet Large Speaker Magnet

Ferrite Ring Magnet Large Speaker Magnet

Purchase Qty.:
(Pieces)
100-499 500-999 1,000+
FOB Unit Price: US $0.088 US $0.086 US $0.082
Purchase Qty. (Pieces) FOB Unit Price
100-499 US $0.088
500-999 US $0.086
1,000+ US $0.082
Get Latest Price
Payment Terms: T/T, Western Union

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Basic Info
  • Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid
  • Coating: Zinc
  • Packaging Details: According Customers′ Requirement
  • Composition: Ferrite
  • Origin: Hunan
  • Shape: Ring
  • Type: Permanent
  • Place of Origin: Zhuzhou China (Mainland)
  • Specification: SGS
Product Description
Product detail

Sintered Ferrite (Hard ferrite magnets) were developed in the 1960s as a low cost alternative to metallic magnets. Even though they exhibit low energy (compared with other permanent magnet materials) and are relatively brittle and hard, Ceramic Magnets (Hard ferrite magnets) have won wide acceptance due to their good resistance to demagnetization, excellent corrosion resistance and low price per pound. In fact, measured by weight, ferrite represents more than 75 percent of the world magnet consumption. It is the first choice for most types of DC motors, magnetic separators, magnetic resonance imaging and automotive sensors.

Besides industrial application, Ceramic Magnets (Hard ferrite magnets) are widely use in Educational area.

Ferrite magnets are manufactured by pressing, sintering, or injection molding. These magnets can be both anisotropic and isotropic. Anisotropic grades are oriented in the manufacturing direction and must be magnetized in the direction of orientation. Isotropic grades are not oriented and can be magnetized in any direction.


Physical property of hard ferrite magnets

Typical Physical Properties
Curie Temperature (°C)450
Maximum Operating Temperature (°C)250
Hardness (Hv)480-580
Density (g/cm3)4.8 - 4.9
Relative Recoil Permeability (μrec)1.05 - 1.20
Saturation Field Strength, kOe (kA/m)10 (800)
Temperature Coefficient of Br (%/°C)-0.2
Temperature Coefficient of iHc (%/°C)0.3
Tensile Strength (N/mm)<100
Transverse Rupture Strength (N/mm)300


Mostly Used national standard - SJ285-77 permanent ferrite magnet standard

GradeBrHcbHcjBHmax
kGsmTkOekA/mkOekA/mKJ/m3MGOe
Y10T(=C1)2.00/2.18200/2181.57/1.82125/1452.64/3.14210/2506.5/8.00.8/1.0
Y253.60/3.70360/3701.70/1.88135/1501.76/2.14140/17022.5/25.32.8/3.2
Y30(=C5)3.80/3.85380/3852.40/2.64191/2102.50/2.51199/22026.0/283.4/3.7
Y30BH3.80/3.90380/3902.80/2.95223/2352.90/3.08231/24527.0/30.03.4/3.7
Y334.10/4.20410/4202.77/2.95220/2352.83/3.01225/24031.5/33.04.0/4.2
Y354.00/4.10400/4102.20/2.45175/1952.26/2.51180/20030.0/32.03.8/4.0
C8(=C8A)3.85/3.90385/3902.95/3.20235/2553.05/3.33242/26527.8/30.03.5/3.7
C104.00/4.10400/4103.62/3.77288/3003.51/3.60280/28730.4/31.93.8/4.0


Delivery time

7-10 Working days
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