shanghai strong magnets small magnets for sale
USD $1 - $10 /Piece
Min.Order:1000 Pieces
Shanghai Strong Magnets Industrial And Commercial Company Ltd.
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Specifications
Ferrite Ring Speaker Magnet
Low cost
High energy
Good electric insulation magnet for speaker
Excellent resistance to demagne
Speciation for Ferrite Ring Speaker Magnet :
1.Material: ferrite powder, etc
2.Grade: Y25, Y30, Y30BH, Y35
3.Size: D20 * T9 , D40 * T13 , D30 * T9 , D50*10 , D54 * T8mm , etc.
4.Shape: Arc, Block, Bar, Ring, Cube, Disc, or others.
5.Application: Widely used in ammeter, speaker, audio, phone, TV, dynamo, DC permanent magnet motors (used in cars), etc
Characteristics for Ferrite Ring Speaker Magnet :
* Low cost, high-energy, good electric insulation and excellent resistance to demagnetization.
* High coercive force, high electric resistance, long-time stability, and economical price.
Type for Ferrite Ring Speaker Magnet :
Isotropic ferrite magnets
Anisotropic ferrite magnets
Manufacturing Process for Ferrite Ring Speaker Magnet :
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.
Magnetization for Ferrite Ring Speaker Magnet :
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.
NdFeB Magnet for speaker