Ferrite Sintered Multipole Magnet Ring Round Shape for Motor Industry

Model NO.: ferrite magnet
Trademark: SPN
Transport Package: Wooden or as Per Requirement
Specification: SGS
Origin: China
HS Code: 8505119000
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 :
 
Using the latest innovative technologies to make magnetic multi pole rings with high coercive force, strong corrosion resistance and oxidation resistance. The surface of magnetic flux density has reached 0.2T, Concerning widely application with large difficulties of 4 poles magnet which density can reach 0.18~0.195T.
 
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 

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 &
  typpe		 Outside diameter ¢ Internal diameter ¢ Height Poles Surface flux density
1 ¢25*¢(6.5-7.0)*(25-40) 25 6.5-7.0 25-40 2 1400-2100
2 ¢19*¢(6-7)*30 19 6-7 30 2
3 ¢38.4*¢16*28 38.4 16 28 4
4 ¢30*¢10*30 30 10 30 4
5 ¢37.7*¢16.5*15 37.7 16 15 6
6 ¢54*¢35*31 54 35 31 6
7 ¢50*¢30*30 50 30 30 8
8 ¢37*¢22*20 37 22 20 10
9 ¢12.2*¢7*13 12.2 7 13 12
10 ¢30*¢21*25.5 30 21 25.5 24


VI. Magnetic Properties of Hard Ferrite (Ceramic) Magnets






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