RING-shaped Ferrite Magnets, High-corrosion Resistance, High-working Temperature, High-coercive Force
Features:
Material: SrO or BaO and Fe2O3
Coating: none or customer request
Grades: Y10t, Y20, Y25, Y30, Y30BH, Y35
Irregular: we can machining on the basis of customer's specification
Magnetic properties: high-corrosion resistance, high-working temperature, high-coercive force and low-cost
OEM and ODM orders are welcome
Hard Ferrite Department is one of a department of HSMAG It has an advanced complete set of production line imported from Europe and America, advanced and perfect quality measuring & controlling system, and has passed certifications of quality system on TS16949. The high-performance hard ferrite materials we produce are mainly Y30, Y32, Y33, Y34, Y35 and Y40. The magnets made from these materials mainly include segment, ring(toroidal), arc(sector), special-shaped etc. It’s widely used in vehicle motors, motorcycle motors, and industrial electrical and other kinds of micro-motors. The annual production ability is 10,000T powder of high property hard ferrite and 7,000T advanced permanent magnets. After entering the “Twelfth Fiveâ€, the magnet production will rise up to 10,000T.
Common applications
• DC motors
• Magnetic separators
• MRI
• Automotive sensors
• Craft projects
• Refrigerator magnets
Temperature constraints and methods of magnetization
Maximum operating temperature for ceramic magnets is 250°C. Although you will experience magnetic losses when operating at elevated temperatures, the losses are recovered when the material is brought down to normal ambient temperature. However, operating in very cold temperatures (-20°C) can result in permanent losses of magnetic strength unless the circuit has been designed for such extremes. Magnetization: ceramic magnets must be magnetized in the direction of orientation, which is the same as the direction of pressing.
Permanent Magnets
Ferrite
Ferrite magnets are more commonly referred to as ceramic magnets. They are mostly composed of strontium and Iron oxide (SrO . 6Fe2O3) and offer solid performance with their low cost, higher coercive force than alnico and low recoil permeability. They are widely used for loudspeakers, small motors, generators, and rotors.
we offers a complete line of ceramic magnets.
Characteristics
Low cost
Strong resistance to corrosion
Easy to magnetize, thus allowing magnetization after assembly
Lower energy products than alnico or rare earth magnets
Very stable when exposed to temperature or stray fields
All-Ferrite Magnet Design
The high and extraordinarily rapid recent rise in the price of rare earth magnets, along with their increasingly uncertain supply, has resulted in understandable reluctance of OEMs to apply conventional permanent magnet technology, which commonly rely on such material.
NovaTorque is NOT susceptible to these high costs and supply vagaries. Its unique and patented, flux-focusing, conical air gap rotor and stator geometry allows NovaTorque to achieve rare-earth magnet-like performance with low-cost, readily available, ceramic ferrite magnets.
The chart below illustrates the dramatic difference in magnet pricing.
1.Application: hard ferrite ring magnets for the speaker.
2.Compostion: hard ferrite powder,strontium,SrO.6Fe2O3.
3.Grade: Y28,Y29,Y30,Y32,Y33,Y34,Y35,Y36,Y38,Y40.
4.Performance: Br≥400 mT, Hcb≥230 KA/m.
5.Shape: ring,arc,segment,block.
6.Environment: RoHS.
7.Certification: ISO/TS16949,ISO9001:2000.
8.Advantages:
Fast and large batch supply capacity.
Hight & stable product property.
Competitive price.
Item: Ferrite Magnet, speaker Audio Ferrite Magnet .
Shapes: Disc, Cylinder, Rod, Block, Ring, Segment, Special Shape and more
Customized Size is available.
Ferrite Magnet, Motor Ferrite Magnet the third generation of rare .earth permanent magnet, is the most powerful and advanced commercialized permanent magnet today. It can be formed into Various sizes and widely used in many fields such as aviation, electronics, Instruments, meters, machines and medical instrument.
Our Ferrite Magnets are available in a variety of shapes and sizes, including blocks, rings, arcs, segments and disc...In order to ensure the highest quality products, we have Founded a R&D center and quality control center for solving the problems in Production and quality.
We highly appreciate your any enquiry by email, by fax or by Instant message.
We will reply your email or fax within 12 hours.
Please feel free to call us at any time if there is any question.
Materials: ferrite, ceramic, cast Alnico and NdFeB
Magnetic properties: high-corrosion resistance, high-working temperature, high-coercive force and low-cost
It is easily formed into various sizes
Sizes: 15, 20, 30, 40mm or as per customers' request
Various colors are available
Customer magnets are welcomed
OEM and ODM orders are welcomed