2014 China Strontium Hard Sintered Barium Ferrite Magnets

Ferrite magnets, made by molding powder mixture of about 80% Fe2O3 and about 20% either BaCo3 or SrO3, is also called ceramic magnet. Along with deepening of research, some additives such as cobalt (Co) and lanthanum (La) are mixed together to improve the magnetic performance. The molded powder metallic green is sintered inside a temperature controlled furnace what is heated with electricity or coal. Though hard ferrite magnet is with low magnetic property, it is still a preferable choice to engineer in their design due to several factors: abundantly available raw material,the cheapest cost among permanent magnet family, low density, excellent stability of chemistry, high maximum working temperature and Curie temperature.

Specification

Ferrite Magnets

Material

Isotropic material; Anisotropic materials

Size

Ferrite toroidal maximum do D260-d140 * 19 T MM

Rectangle can do 150 * 100 * 20(L*W*T)MM

Normal Tolerance

+/- 2%mm

Magnet Grade

10, Y30, Y30BH

Temperature

80°C

Certificate

ROHS

Sample

Available max working

MOQ

10 pcs

Price

USD0.01~5/pc

Lead Time

Within 7-15 days after get your payment

Features

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

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 Due to the environmental requirements which are becoming more stringent barium ferrite has been replaced by strontium ferrite during the last years.

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

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

Applications

Speaker magnets

DC brushless motors

Magnetic Resonance Imaging (MRI)

DC permanent magnet motors (used in cars)

Separators (separate ferrous material from

Used in magnetic assemblies designed for lifting

Holding, retrieving and separating

Magnetic Door Catcher

Instrument and Meters

Toys

Arts and crafts

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

Why choose us

1. Our factory is one of the leading manufacturers in GuangDong. 

2. We can customize your brands, and provide high quality products with competitive price.

3. We provide Cheap & Safe Shipping and Express! to every customer.

4. Inventory on thousands of samples available for free!

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