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 Due to the environmental requirements which are becoming more stringent barium ferrite has been replaced by strontium ferrite during the last years.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