4 inch magnetic shield RMS 25w mid bass speaker

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.

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