Gold Member Since 2016
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Hangzhou Spanner Science & Technology Co., Ltd.

Permanent Magnet, Motor Magnet, Permanent Ferrite Magnet manufacturer / supplier in China, offering Permanent Ferrite Sintered Multipole Magnet Rings, Ceramic Ferrite Sintered Multipole Ferrite Magnet Rings, Magnet Hard Ferrite Sintered Multipole Magnet Rings and so on.

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Permanent Ferrite Sintered Multipole Magnet Rings

FOB Price: US $0.1-1 / Piece
Min. Order: 1,000 Pieces
Min. Order FOB Price
1,000 Pieces US $0.1-1/ Piece
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Port: Ningbo, China
Production Capacity: 20, 000, 000.00
Payment Terms: T/T

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Product Catalog
Ceramic Ferrite Permanent Magnet
36 Products
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FOB Price
Basic Info
  • Model NO.: Ferrite sintered magnet ring
  • Magnetocrystalline Anisotropy: Anisotropic Magnet
  • Shape: Ring
  • Export Markets: Global
  • Transport Package: Wooden or as Per Requirement
  • Origin: China
  • Type: Permanent
  • Application: Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
  • Size: Customized
  • Trademark: SPN
  • Specification: SGS
  • HS Code: 8505119000
Product Description
I.Ferrite anisotropic sintered  magnetic rings 

Anisotropic sintered ferrite magnets have higher magnetic properties compare with isotropic ferrite magnet. However, this type of magnets can only be magnetized along the preferred direction;the sintered Ferrite has an excellent resistance to demagnetization. 
The Polar Anisotropic Ferrite Ring Magnets are the magnets with multipoles in ring shape. They have become the key component of stepping motors which are widely used in computer peripheral and consumer electronics, such as washing machine,different types of pumps,  printer and digital -camera,etc.

 II.Features :
The products of the company are with precision size, stable performance, excellent quality products; the diameter is in the range of 10mm-80mm, from 2 poles to 48 poles with variety of specifications, we can supply sine wave, trapezoidal wave, square wave and other magnetizing waveform.  High performance of the products and the surface magnetic flux density can reach from 1200 GS to 2100GS.
According to customer's request, good quality with competitive price and best delivery time, one station service. Guarantee the best price based on the same quality. 

Product Name Ferrite Magnetic Ring
Description Ferrite anisotropic sintered multipole ring
Material The low cost magnetic material, main contents ferric oxide, barium and strontium 
Working temperature 250 degree
Manet Shape  Round , Cylindrical 
Dimension scope ¢(12-70)*¢(7-35)*40
Features  A low cost alternative to other magnetic materials, good resistance to corrosion & demagnetization. 
Applictions  DC brushless motors, Precision motors,Louder speakers, Magnetic Separators, Automotive Sensors, etc 
Packing  Carton or pallets or as per customer's requirement
Shipping  By sea, By air, by Express way 

Permanent Ferrite Sintered Multipole Magnet Rings

III. Manufacturing Process : 

1.Two Manufacturing process :
Dry process can produce isotropic & anisotropic magnets, tool can be changed and developed easily.
By wet process, only anisotropic magnets can be produced, it is complicated to change the tool and the tooling charge is much higher.
2.Magnetization :
  • Isotropic ferrite magnets  are not oriented and can be magnetized in any direction.
  • Anisotropic ferrite magnets are different,  they are all oriented in the manufacturing direction, and should be magnetized in the direction of orientation. 

V. Part of Products Specification:

No. Speification &
Outside diameter ¢Internal diameter ¢HeightPolesSurface flux density

VI. Magnetic Properties of Hard Ferrite (Ceramic) Magnets

Permanent Ferrite Sintered Multipole Magnet Rings

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Permanent Ferrite Sintered Multipole Magnet Rings

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