ferrite magnets various shaped from China manufacturer - Ningbo Joy Industrial & Trading Co.,Ltd.

Price:	0.1~10.0 USD
Payment Terms:	T/T,L/C,
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: various shaped ferrite magn...

Production Capacity: 100 Metric Ton/Metric Tons ...

Delivery Date: 15-20 days

Application: Inductors,Transformers,Loud...

Grade: Y25, Y30, Y35, Y30BH

Place of Origin: Zhejiang,China (Mainland)

Cutting Tolerance: +/-0.05mm

Magnetization: Custom Request

Means of Transport: Ocean,

Packing: According to customer's req...

Type: Permanent

Shape: Arc

Platings: no

Export Area: All of the World

Brand Name: Joy

Ferrites are a class of chemical compounds with the formula AB2O4, where A and B represent various metal cations, usually including iron.

product name: Ferrites
Ferrites are a class of chemical compounds with the formula AB2O4, where A and B represent various metal cations, usually including iron. They are generally composed of iron and barium or strontium oxides. Ferrite magnets are very hard, but brittle ceramic products. They are characterized by a vey high normal and intrinsic coercive force, but a rather low residual induction and are virtually free from the effects of a self-demagnetization. They posses a very high electrical resistivity that makes them ideally suited for high frequency applications as the eddy current losses are almost negligible.

Corrosion resistance property of ferrite is very good and as such ni surface treatments are required.

Machining

Ferrite magnets are prone to chipping ad cracking due to their brittleness. Special machining techniques such as grinding with diamond tools are required for matching the dimension specifications.

Applications

Typically Ferrites have a high coercivity and are very economical in costs.
Thus they are very popular.

Magnetic properties (not less)

Grade	B_{r, T}	Hcb, kA/m	Hcm, kA/m	(BH)max, kJ/m³
6BI240	0.19	125	240	6.0
8BI220	0.21	125	215	7.0
22BA220	0.36	215	220	22.0
24BA210	0.37	205	210	24.0
25BA170	0.38	165	170	25.0
18SA220	0.33	210	220	18.0
27SA240	0.37	230	240	27.0
28SA250	0.39	240	250	28.0

Shapes and sizes available (as standard):
Shapes: Blocks, plates, rods/cylinders, disks, rings, arc of segments.
Two poles

Standard sizes:

Blocks/plates

	Min, mm	Max, mm
W	5	100
T	5	16
L	5	120

Rods/Cylinders

	Min, mm	Max, mm
Dia	3	15
L	3	30

Disks

	Min, mm	Max, mm
Dia	3	100
h	3	5

Rings (isotropic)

	Min, mm	Max, mm
OD	5	45
ID	3	30
h	2	25

Rings (anisotropic)

	Min, mm	Max, mm
OD	36	135
ID	18	60
h	6	20

Arcs/segments (anisotropic)

	Min, mm	Max, mm
W	10	80
L	10	140
H	3	45

Segment ferrite magnets for motors.

Typical Applications include

· Inductors

· Transformers

· Loudspeakers

· Electromagnetic Instrument pick up

DC motors

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