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Neodymium Iron Boron (general composition Nd2Fe14B, often abbreviated to NdFeB) is the most recent commercial addition to the family of modern magnet. NdFeB magnet is the strongest permanent magnetic nowadays, and it has the merits of high remanence, high coercive force, high energy product and high price/performance ratio. Meanwhile, it could be easily processed into various shapes and specifications. Now, it is widely applied in the fields of aviation, automobile, electronics, communications equipment, meters and so on.
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One of the oldest members of our magnet family, Alnico remains the workhorse of the permanent magnet industry and can be relied upon to deliver impressive flux density at an economical price. Alnico also boasts the lowest temperature coefficient of any commercial magnet material (.02% per degree centigrade) allowing for excellent stability over a wide temperature range.
Alnico has experienced renewed interest in recent years in such temperature-sensitive applications as hall-effect and MR-based automotive and electronic sensors, in addition to the traditional magnetron, TWT professional amplifiers, industrial actuators, motors and instruments applications that have long relied upon Alnico. |
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Alnico magnets are made up of Aluminium, Nickel and Cobalt.
Although this type of magnets have a very high remanence induction, the coercivity is very low. It shows great stability in temperatures, maintaining its magnetic features between -250ºC and 425ºC.
This type of magnets are used mainly in measuring equipments and detection systems by magnetic fields (analytical weighing, brakes,...).
This is the magnet quality which offers best behaviour regarding temperature increase.
=>Magnetised cilindricbars
=>Industrial bridge
=>Horseshoe Magnets
=>Low Magnetic Bases
=>Hight Magnetic Bases
=>Demagnetisation Curves
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AlNiCo materials, composed primarily of alloys of Aluminum, Nickel, Cobalt, Ferrum and other metal elements. They are characterized by excellent temperature stabilities (Its working temperature can be as high as 550 degrees Centigrade), high residual inductions, and relatively high energies. They are manufactured through either casting or sintering process. Cast magnets may be manufactured in complex shapes, such as horseshoes, not possible with other magnet materials. Sintered AlNiCos offer slightly lower magnetic properties but better mechanical characteristics than cast AlNiCos. AlNico is hard and brittle. Machining or drilling cannot therefore be accomplished by ordinary methods. AlNiCo has a low coercive force, and is easily demagnetized if not handled with care.
Cast AlNiCo5 is the most commonly used of all the cast Alnicos. This material is used extensively in rotating machinery , meters, instruments, sensing devices, and holding applications, to name a few.
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Alnico magnets, composed of primarily aluminum, nickel, and cobalt, were developed in the 1940's. This class of magnet remains a preferred material because of it's excellent temperature stability, high magnetic flux density, and resistance to corrosion. Alnico magnets are manufactured through a casting or sinter process. The casting process allows for the magnet to be manufactured into intricate and complex shapes, which are not possible with other magnetic materials.
Ningbo Tongchuang Strong Magnet Material Co.,Ltd is an original factory specializing in Neodymium magnetic, and also manufacturing and marketing
other permanent magnets, such as Sm-Co, Al-Ni-Co, hard ferrite and rubber magnets. |
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The professional cylinder rare earth magnets
Ningbo Tongchuang is a professional factory to manufacture neodymium magnets in Ningbo China, we arrange to produce according to customers' requests.( the grades of magnets , the dimension, the professional coatings, the Qty, and so on.)
About the cylinder magnets, it is widely used in motors, speakers, and so no. The grade of such magnets can be Grade N, M , H, SH, UH,EH, AH.The details of each grade of the neodymium magnets please see our PDF catalogue " Magnets in Ningbo Tongchuang".
The size can be Diameter 1.20mm to 200.mm, length 0.50mm to 50.00.
The coating of NdFeB magnets can be Zn, Ni, Ni-Cu-Ni, Epoxy, CR3+ZN, NI+AG, NI+AU and so on.
If you are interested in our factory, please do not hesitate to contact us, we are at your service any time
Contact details:
Steve Chen (Mr.)
Email: tcexport@ndmagnets.com
Tel:86-574-88170908
Fax:86-574-88170906
Mobile:86-15990259284
MSN: toddywell@hotmail.com
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HARD FERRITE MAGNETIC
Hard ferrite (ceramic) industrial magnets were developed in the 1960's as a low cost alternative to metallic magnets. Even though they exhibit low energy (compared with other permanent magnet materials) and are relatively brittle and hard, ferrite magnets have won wide acceptance due to their good resistance to demagnetization, excellent corrosion resistance and low price per pound. In fact, measured by weight, ferrite represents more than 75 percent of the world magnet consumption. It is the first choice for most types of Dc motors manufacturers, manufacturer of magnetic separators, magnetic resonance imaging and automotive sensors.
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Barium and strontium Ferrite magnets are economical and quality components which may be found in such different applications like automation, control, measurement, etc.
Ferrite magnets may be isotropic or anisotropic. In anisotropic qualities, during the pressing process, a magnetic field is applied. This process lines up the particles in one direction, obtaining better magnetic features.
Through sintering, (thermal processing at high temperatures), pieces in their definite shape and solidity are obtained.
Available:
=>Ferrite Blocks
=>Ferrite Disks
=>Ferrite Rings
=>Technical Properties
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STRIP
Thickness: 0.030" to 0.375"
Width: 0.25" to 6.00"
Energy: 0.50 to 1.90 MGOe
Standard Lengths: As much of the strip we produce is custom, lengths are available on request. We have run up to 15,000' continuous lengths.
SHEET
Thickness: 0.010" to 0.375"
Width: 0.25" to 24.312"
Energy: 0.65 to 1.60 MGOe
Standard Lengths: 25', 50', 100' lengths stocked, other lengths available by request. We have run up to 3,000' continuous lengths.
Other capabilities or secondary conversion available from Flexmag:
Laminates
Pre-cut lengths, pieces or blanks
Kiss-cut strips
Retail-ready packaging
Die-cut shapes
Variety of standard industrial adhesives
Custom magnetic pole patterns
Special length reels
Private professional label packaging
Back printed or embossing |
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Bonded Ferrite magnet is made from the mixture of bonded Ferrite magnet powder and synthetic rubber or plastic by extruding, calendaring or injecting method. It mainly includes rubber Ferrite magnet and plastic injection molded magnet. The rubber magnet has the characters of soft, flexible, and it is widely used in fridge, cupboard, stationery, advertisement and so on. The plastic magnet possesses better flexibility, and it can be inserted into metal and plastic parts easily. They are mainly used in Dc motor specification, meter motor, copyprinter, inductor, etc.
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Ferrite magnetic are sintered permanent magnets composed of Barium or Strontium Ferrite. This class of magnets, aside from good resistance to demagnetization, has the popular advantage of low cost. The corrosion resistance of Ferrite is considered “excellent”, and no surface treatments are required.
Ferrite magnets can be produced isotropically or anisotropically. Isotropic grades are not oriented and can be magnetized in any direction, although some degree of greater magnetic strength will be found in the pressing dimension, usually the shortest dimension. Anisotropic grades are oriented in the manufacturing direction, and must be magnetized in the direction of orientation.
Due to their low cost, Ferrite magnets enjoy a very wide range of applications, from motors and loudspeakers to toys and crafts, and are the most widely used permanent magnets today.
Ferrite magnets are very hard and brittle, and require specialized machining techniques. Moreover, they should be machined in an unmagnetized state.
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The elobau programme offers a wide choice of OXID, AINiCo and SEKO industrial magnets which can be supplied with or without housings. The distances between the switch and the sensor to be used – depending on the application – can be set to almost any requirements.
All the plastic magnets are made here at elobau and, as a result, are available in any shape and size depending on customer needs. |
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Application of the neodymium magnets.
1.Magnetic manipulator device, magnetic sucker, magnetic traps, magnetic tool holder, magnetic photo albums, magnetic link, magnetic toys
2.Micro speaker.Handset, headphone, receive
3.DC(direct current) servo motors, manufacturer of linear motor
4.CD-ROM drive manufacturers of clamp and accelerate devices, motor shaft
5.HDD motor
6.Sensors, gauges, switches, relays, the magnetic imaging applications on medical and geophysics, control system, magnetic bearings, magnetic joints, etc.
We will help you with your order. Usually we should check the following information,
1,Material type and grade required
2, Size and shape, if available, a sketch or drawing with dimensions and tolerances
3, Magnetic direction
4, Coating required (if any)
5, Information on what you want to use the magnet for.
If you are interested in our factory, please do not hesitate to contact us, we are at your service any time
Contact details:
Steve Chen (Mr.)
Email: tcexport@ndmagnets.com
Tel:86-574-88170908
Mobile:86-15990259284
MSN: toddywell@hotmail.com |
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for the removal of iron, steel and non-ferrous items from (recycled) materials, such as household refuse, glass, rubber, timber, coal and building & Demolition waste
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NEODYMIUM-IRON-BORON MAGNETS
Sintered neodymium-iron-boron (NdFeB) magnets, also referred to as "neo" magnets, have been commercially available since November 1984. They offer the highest energy product of any material today and are available in a very wide range of shapes, sizes and grades. Earliest use of neo magnets was primarily for voice coil motors (VCM's) in professional hard disk drives and this market industrial still accounts for about 55% of total sales dollars. Other applications include high performance motors, brushless dc motors manufacturers, magnetic separation, magnetic resonance imaging, sensors and loudspeakers. |
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Grade: N42
size: 2" x 1" x 0.5"
coating: Ni-Cu-Ni
Magnetized through the Thickness 0.5"
Applications: wind turbine or other projects
For years, we have been offering the magnets for industrial wind turbines worldwide. we have a team of technicians with rich experience in the R&D of magnets for wind turbines.
The magnets for wind turbines, usually we offer L-T series for wind professional generators, Compared to the Conventional Formula and the T-series, the correlative temperature coefficient and weight loss are better. it will well prolong the life twice than usual.
For the details about the L-T series or the magnets, please do not hesitate to contact us or view our PDF Catalogues " special magnets for wind turbine" , we are at your services any time.
If you are interested in our factory, please do not hesitate to contact us, we are at your service any time
Contact details:
Steve Chen (Mr.)
Email: tcexport@ndmagnets.com
Tel:86-574-88170908
Mobile:86-15990259284
MSN: toddywell@hotmail.com
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We are the original factory to manufacture permanent magnet. Such as NdFeB industrial magnets.
Material Grade of NdFeB magnet:
Magnet N-( N35, N38, N40, N42, N45, N48, N50),
Magnet M-(35M, 38M, 40M, 42M, 45M, 48M),
Magnet H-(35H, 38H, 40H, 42H, 45H),
Magnet SH-(30SH, 33SH, 35SH, 38SH, 40SH, 42SH),
Magnet UH-( 28UH, 30UH, 33UH, 35UH, 38UH),
Magnet EH-(28EH, 30EH, 30EH, 33EH, 35EH)
1) Application of NdFeB magnet: Toys, package, Professional printer, Switchboard, Phone, voice coil motors (VCM's) in professional hard disk drives, high performance motors, brushless dc motors, magnetic separation, magnetic resonance imaging, detection, loudspeakers etc.
2) The coating of NdFeB magnets can be Zn, Ni, Ni-Cu-Ni, Epoxy, CR3+ZN, NI+AG, NI+AU.
3) Our factory can also manufacture various sizes of NdFeB magnet, according to the customer's specification.
HS Code: 85051110
Trademark: TC
Model: TCND05
Standard: ISO9001:2000 & SGS
Origin: China
Packing: Carton
Transportation: By Express/By Sea /By Air
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ALNICO MAGNETIC
Developed in the early 1940%u2019s, the Alnico (aluminum, nickel, cobalt) family of magnets remains the material of choice for many applications. Its excellent linear temperature characteristics, high magnetic flux density, and good corrosion resistance are ideally suited for use in products of all sizes - from miniscule cellular telephone magnets weighing less than a gram to radar focusing magnets weighing 50 pounds or more.
BONDED MAGNETS
Polymer bonded magnets have opened a new world of application opportunities. Thermo-elastomer and thermo-plastic resins can be compounded with a variety of magnetic powders to form Injection Molded, Compression Bonded and Flexible Calendered products. Injection molded magnets can be formed into complex shapes and molded directly onto other components reducing assembly costs. Compression bonded magnets, while of simpler geometries, offer higher magnetic output. Flexible sheet and strip is used in many applications including small motors, flexographic (professional printing) devices, magnetic filtering, and signs. |
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Samarium Cobalt is manufactured in two compositions: Sm1Co5 and Sm2Co17, often referred to as the SmCo1:5 or SmCo 2:17 types. 2:17 types, with higher Hci values, offer greater inherent stability than the 1:5 types. SmCo magnets withstand higher temperatures than do NdFeB magnets. It can operate at temperatures up to 350 degrees Centigrade. Sm2Co17 materials exhibit superior temperature characteristics as compared to the Sm1Co5 types. SmCo materials are very brittle, and great care must be taken in machining them. And the corrosion resistance of SmCo is considered “good”, so they are widely used in motors, meter, engine, sensor, radar and other high-tech fields.
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Alnico permanent magnets
AlNiCo materials, composed primarily of alloys of Aluminum, Nickel, and Cobalt are characterized by excellent temperature stabilities, high residual inductions, and relatively high energies.
AlNiCo alloys have some of the highest Curie points of any magnetic material, around 800 °C. This material is used extensively in application required high temperature up to 450°C.
Alnico magnets are manufactured through either a casting or sintering process. Cast magnets may be manufactured in complex shapes. AlNiCo magnets are cast close to final size and then finish machined to closer tolerances. Sintered AlNiCo offer slightly lower magnetic properties but better mechanical characteristics. AlNiCo has a low coercive force, and is easily demagnetized if not handled with care.
Some types of AlNiCo are isotropic and can be efficiently magnetized in any direction. Other types, such as AlNiCo 5, 8 and AlNiCo 12, are anisotropic, with each having a preferred direction of magnetization, or orientation. |
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The raw materials Magma uses to produce hard-ferrite magnets, ate Barium-Ferrite and Strontium-Ferrite .
These raw materials ate easily (Sr0.6 Fe203) and Strontium-Ferrite (Ba0.6 Fe203) available and therefore hard ferrite magnets offer the best value for money.
Anisotropic sintered ferrite permanent magnets are made by using ceramics technology, similar to the one used for making porcelain The powder is pressed under the influence of external magnetic field to determine the magnetic orientation of the powder grains.
Magma specializes in the production of anisotropic wet-pressed magnets. "Hard" magnets are characterized by high coercivity (Hcb, Hci), related to the remanence (Br).
Their magnetizing remains permanent, and stability is excellent. Being oxids, hand ferrites operate in a very tough environment, without the need of coating (the surface can however be coated, if extreme cleanliness is needed by the customer).
Hard ferrite's mechanical properties are like other ceramics. They are sensitive to mechanical impact. Machining is done mainly by diamond grinding.
Wet pressed anisotropic hard ferrites are now used extensively in the automotive industry, as rotors or stators in D.C. motors, in home appliance industry, as rotors for synchronous motors and in the audio industry in loudspeakers, earphones and micromotors.
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This selection of magnetic equipment and components has a wide range of office and light industrial uses. These Specialty Magnets can help meet diverse product handling, processing and purity requirements. All items within this group are handled exclusively by Eriez of Canada.
Ceramic Magnets
Demagnetisers
Electromagnets - Small Flat-faced
Flexible Stripping
Fluid Line Professional filters
Magnetic Bases
Magnetic Claws and Multilifts
Magnetic Lifts - Permanent and Battery
Magnetic Rails
Magnets - Rare Earth
Permanent Magnetic chuck Repair
Permanent Magnets / Assemblies
Small Bi-Polar Magnets
Specialty Magnetic Manufacturer of sweepers |
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On the average, in every car there are tens of motors and manufacturers of solenoids. For example:
power window motor
windshield wiper motor
solenoid for locking doors |
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Alloys of the Lanthanide group of elements, Rare Earths are the most advanced commercialized permanent magnetic materials. Collectively known as Rare Earths are the Neodymium Iron Boron (NdFeB) types and Samarium Cobalt (SmCo) types. Within each of these classes of Rare Earth magnets are a number of different grades which span a wide range of properties and application requirements.
Both NdFeB and SmCo are available in sintered as well as bonded forms. The bonded form of the material can be produced with close tolerances off tool, with little or no finishing required. The sintered form usually requires some finishing operations in order to hold close mechanical tolerances.
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PERMANENT LIFTING MAGNETS SUPPLIER
Dust- and waterproof permanent lifting magnets can work outside in any weather.
Permanent lifting magnets don't need power supply units, magnetization and demagnetization occur due to turn of the handle.
Lifting magnets have small overall demensions and weight in comparison with electromagnets.
Magnets can keep cargo indefinitely long. They are served by one person and have a threefold capacity margin from nominal. |
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Alloys of the Lanthanide group of elements, Rare Earths are the most advanced commercialized permanent magnetic materials. Collectively known as Rare Earths are the Neodymium Iron Boron (NdFeB) types and Samarium Cobalt (SmCo) types. Within each of these classes of Rare Earth magnets are a number of different grades which span a wide range of properties and application requirements.
Both NdFeB and SmCo are available in sintered as well as bonded forms. The bonded form of the material can be produced with close tolerances off tool, with little or no finishing required. The sintered form usually requires some finishing operations in order to hold close mechanical tolerances.
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The taw materials Magma uses to produce hard-ferrite magnetic, are Barium-Ferrite and Strontium-Ferrite .
These raw materials are easily (SrO.6 Fe203) and Strontium-Ferrite (Ba0.6 Fe203) available and therefore hand ferrite magnets offer the best value for money.
Anisotropic sintered ferrite permanent magnets are made by using ceramics technology, similar to the one used for making porcelain The powder is pressed under the influence of external magnetic field to determine the magnetic orientation of the powder grains.
Magma specializes in the production of anisotropic wet-pressed magnets. "Hard" magnets are characterized by high coercivity (Hcb, Hci), related to the remanence (Br).
Their magnetizing remains permanent, and stability is excellent. Being oxids, hard ferrites operate in a very tough environment, without the need of coating (the surface can however be coated, if extreme cleanliness is needed by the customer).
Hard ferrite's mechanical properties are like other ceramics. They are sensitive to mechanical impact. Machining is done mainly by diamond grinding.
Wet pressed anisotropic hard ferrites are now used extensively in the automotive industry, as rotors or stators in D.C. motors, in home appliance industry, as rotors for synchronous motors manufacturers and in the audio industry in loudspeakers, earphones and micromotors.
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