Sintered Anisotropic Hard Ferrite Magnet for Car Loudspeaker

Sintered Anisotropic Hard Ferrite Magnet for Car Loudspeaker

1.Grade:  Y10T, Y20, Y25, Y30, Y30BH, Y35 and etc.

2.Shape: Disc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes and more. Customized Design (Design proper magnets for clients specific requirements)

3.Sorts: We have Disc Ferrite Magnets, Segment Ferrite Magnets, Ring Ferrite Magnets, Block Ferrite Magnets, Cylinder Ferrite Magnets, Irregular Ferrite Magnets,  Sintered Ferrite Magnets, Bonded Ferrite Magnets and many other series.

4.Application:Widely used in ammeter,speaker,audio,phone,TV,dynamo,etc.

ferrite magnet  are manufactured by pressing, sintering, or injection molding. These magnets can be both anisotropic and isotropic. Anisotropic grades are oriented in the manufacturing direction and must be magnetized in the direction of orientation. Isotropic grades are not oriented and can be magnetized in any direction.

The chemical composition is SrO-6(Fe2O3), strontium hexaferrite. The raw materials used to produce ferrite magnets are strontium carbonate and iron oxide both of which are readily available and low in cost. As a result, the use of ferrite magnets in most applications is more economical than other materials.

Advantage

1.Cheapest magnet material 

2. Good anti-corrosion performance, no surface treatment needed

3.Excellent temperature stability 

4.Compact crystal

5.Could provide isotropic and anisotrpic

Two manufacturing Process

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

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.

Attributes

   1. Least expensive material compared to alnico and rare earth magnets 

   2. High intrinsic coercive force 

   3. Available in simple shapes only due to manufacturing process 

   4. Lower service temperature than alnico, greater than rare earth 

   5. Finishing requires diamond cutting or grinding wheel 

   6. Lower energy product than alnico and rare earth magnets 

   7. Most common grades of ceramic are 1, 5 and 8 (1-8 possible) 

   8. Grade 8 is the strongest ceramic material available 

   9. Tooling can be expensive

Transportation

All available shipping ways could be applied, by courier, by air or by sea.

Appointed shipping company or our own forwarders all could be used in shipment.

Full-way tracking the goods for you before the goods arrive.

Buyer Guide

In order to quote you the best price quickly, please provide the following information:

1.Product size,grade,etc.

2.Order quantity;

3.Attached the drawings if customized

4.Any special packing or other requirements

PCT:130c ,humidity 100%,vapor pressure 2.7 bar.20 days,average low weight loss less than 2 mg/cm2

Common Applications :

Sensors   Linear actuators   Microphone assemblies    Magnetic separators   DC and servo motors   Speakers   Printers   Magnetic hooksComputer rigid disc drives   Beam controls   Intelligent toys   MRI/NMR

We are specialized in producing NdFeB Magnet over many years,We guarantee the best price based on the same quality and service. Our finance conditiearon and industrial reputation are excellent.

Testing Center

We are ISO/TS16949:2002 certified and well implement all procedures strictly under control. Problem preventive actions and quality assurance are preoperly combined with special inspection for all procedures from raw material purchasing ,outside cooperating part manufacturing,inside manufacturing to shipping . We also install a complete set of physical and chemical test equipment to make sure that all our products are manufactured and shipped under strictly quality control .

Salt Spray Test :

Mainly test the surface treatment against the corrosion.  Usually the tested samples will be  continuous sprayed 24 hours in the 35℃ temperature to see if there is any rust appearance on the surface. 

Projection Instrument:

Mainly test the magnets with irregular shapes such as arc segments and any other irregular-shaped parts to see if their dimensions meet the customers' requirements or not.  

PCT Instrument:

Mainly test the magnets to prevent against corrosion on the high temperature and high atmospheric pressure . Usually the test condition is 120℃ temperature and 2 atmospheric pressure .

Heat& Humidity Instrument:

Mainly test the magnet to against corrosion on certain temperature and humidity . Usually the test condition is 80℃ temperature and 90%+/-3% humidity

Hysteresgraph:

Mainly test the magnetic characteristics of the magnet, including Residual (Br ), Coercive(Hcb) . Intrinsic  Coercive(Hcj), Max. Energy product(BH max) and any other related magnetic parameters. 

HSMAG Magnets has been supplying high quality Neodymium Magnets to customers for about 20 years.

Super Magnet

Made of neodymium, the most powerful magnet material in the world

Great for projects that require extreme strength in a small size

Permanent magnetism guaranteed

Not for children