Hard Ferrite Ceramic Disc Isotropic Magnets

China manufacturer Y25 ceramic barium ferrite magnet 

1.hard ferrite magnet 

2. High Cpercive Force 

3. 80-200 centigrade work

Specification of China manufacturer Y25 ceramic barium ferrite magnet :

Ferrite or ceramic magnets are still the most widely used magnets with a maximum energy product of 1 to ± 4.3 MGOe. 

Due to the environmental requirements which are becoming more stringent barium ferrite has been replaced by strontium ferrite during the last years. 

Ferrite is the cheapest magnetic material and has a high corrosion resistance making coating unnecessary.

This magnetic material is hard and fragile and must be processed with diamond, preferably when it is not in a magnetic state.

Because it might shrink during the sinter process a tolerance of ± 2 % should be taken into account when determining the dimensions. If grinded ± 0.1 mm.

Tighter tolerance is available on request. 

Ferrite magnets can be supplied both isotropically and anisotropically, they are used in the most divergent products such as loudspeakers, magnetrons, measuring devices, toys, engines, reed contacts etc. 

The maximum temperature of use is 225°C depending on the specification, dimensions and system design. 

For specifications: See the table below. 

The minimum dimension for block magnets is 2 x 2 x 2 mm, whereas the maximum dimension for this type is 270 x 90 x 25.4 mm.

The minimum dimension for disc magnets is D 2 x 1 mm, whereas the maximum dimension for this type is D 156 x 25.

The minimum dimension for ring magnets is D8 x 2.5 x 3 mm, whereas the maximum dimension for this type is D 256 x D* x 25 mm (* inside diameter in consultation).

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