AA International, Inc.

United States

AA International Inc. is the premier destination for neodymium magnets for sale. The Neodymium Iron Boron magnet--Neodymium (NdFeB for short)--is the most powerful permanent magnet on the market; we have a wide variety of sintered NdFeB magnets for sale. Because these magnets have many different uses, our magnets span a range of sizes and applications. No matter what you need a neodymium magnet for, count on finding the right one to suit your needs at AA International Inc. We are equipped to fabricate these materials to blueprint specifications. Almost all sintered NdFeB magnets are an-isotropic, and can only magnetize in the orientation direction. We can even make multi-pole ring magnets. Sintered neodymium magnets are very powerful even in tiny sizes, they make an ideal choice for miniature components such small motors and speakers. Consult the chart below for more information about the magnetic properties of the different neodymium magnet products we offer. When you need a high quality sintered NdFeB magnet manufacturer, trust the knowledgeable team at AA International Inc. For more information about Neodymium magnets, contact us today ApplicationMotorsMedical devicesLoudspeakersToysMagnetic separation devicesMagnetic SystemsGrade

B Assembly, round based assembly or cup assembly is composed of a ceramic ring magnet enclosed in a steel cup. This kind of assembly has a strong pull force and steady build. The steel cup is usually Chrome plated. ApplicationAntenna mountingLiftingHoldingPositioningCustom sizes can be made to your designCounter sink for the center holeBolt and nut for the center holeHookPart Number

Ceramic Magnets are also called Sintered Ferrite Magnets. There are mainly two types of ferrite magnets, Barium ferrite (BaO.6Fe2O3) and Strontium ferrite (SrO.6Fe2O3). Compared with other permanent magnets, sintered ferrite magnet is cheap. It is most suitable for most sensitive, but need not very high performance applicaitons. As this is a non-metal magnets, it is the ideal magnets for applications that require non-rusty magnets in humit envirument. Sintered ferrite magnets are widely used in many different applications, such as motors, cars, magnetic selection loudspeakers, and many special applications. Sintered ferrite (ceramic) magnets are also available in forms of isotropic and an-isotropic. The magnetic properties of isotropic ferrite are the same in all directions, therefore they can be magnetized in any pole arrangements. An-isotropic ferrite magnets, on the other hand, can only be magnetized in the direction they are oriented during production, but they have much higher magnetic strength than isptropic ones. CharacteristicsSintered ferrite magnets can be used in between -40 C and +200 CBeing hard and brittle, they can be cut by using diamond tools.The raw material of sintered ferrite magnets is oxide, thus they would not be rusted under severe environment nor affected by many chemicals (except some strong acids).

Bonded Neodymium Magnet (Bonded NdFeB magnet) is made through Compression Molding or Injection Molding of the mixture of quick-quenched NdFeB magnetic powder and bonding agent. Due to its high accuracy in size, the bonded magnet may be formed into magnetic components of relatively complicated shapes. Also, it features single-time molding and multi-pole orientation. The injection molded magnet has a high mechanical strength and maybe molded together with other matching parts. ApplicationMotorsMicro motors for HD and CD ROMsSensorsMicrophones

AlNiCo alloys basically consist of aluminum, nickel, cobalt, copper, iron and titanium. In some grades cobalt andor titanium can be omitted. Also these alloys may contain additions of silicon, columbium, zirconium or other elements which enhance heat treatment response of one of the magnetic characteristics. AlNiCo alloys are formed by casting or powder metallurgical processes. CharacteristicsAlNiCo magnets are very good at temperature properties. Its temperature coefficient is very low, so the change of magnetic properties is low under high temperature. The maximum working temperature can be as high as 400 CThe coercive force of AlNiCo magnets is also very low, so it can be easily effected by reverse magnetic force and impact of iron. This means that they can be easily demagnetized by external influences. For this reason, AlNiCo magnets should not be stored and packed with the same poles opposing to each other.In open circuit, the ration of lengthdiameter (LD) should be at least 4:1. With shorter length, AlNiCo magnets are unstable in open circuit.AlNiCo magnets have good corrosion resistance characteristic. No coating is needed for surface protection.ApplicationsInstrumentsMetersMobile PhonesOdometers

General DescriptionWith rich experience in magnetic sensor field, we can not only help customers to choose appropriate magnet, but also provide customized magnetic sensors and measuring components. CharacteristicsA variety of output mode choicesLow costSturdy constructionEasy installationApplicationsIndustrial application fields: magnetic switch, flowmeter, liquid level, etc.

eneral DescriptionThe magnetic sensor consists of multi-pole ring or magnets and hall or magneto-resistance IC, maily for the speed, position, the flow measurement control applications. CharacteristicsA variety of output mode choices.Low costSturdy constructionEasy installationApplicationsFor automotive sensor applications, such as hall crank shaft position sensor, throttle position sensor, accelerator pedal, steering wheel position detection, throttle position detection, etc.

General DescriptionTo achieve the transmission of force and movement by the use of magnetic force. CharacteristicsHigh torgue, high precision, suitable for special application environment, long life.Can provide the different types of products according to the different magnetic circuit designApplicationsApplied in petrochemical, pharmaceutical, electroplating, nuclear power, vacuum pumps, diet, biotechnology and semiconductor industry fields, such as magnetic couplings, permanent magnet clutches. Special Magnetizing Component General DescriptionAssembled by special fixtures and bonding process, with efficient magnetic circuit design based on simulation analysis. CharacteristicsHigh-intensity magnetic fieldCorrosion resistanceApplicationsFor oil drilling, coal mining, etc.

General DescriptionCharacteristics.ApplicationsMagnetic Rotary Encoders General Description. CharacteristicsApplications.

General DescriptionWe offer a variety of high speed rotors, which have high performance, high speed, high precision, corrosion resistance and other characteristics. The product is a combination of magnets (NdFeb, Bonded NdFeb, Samarium Colbalt, etc), shaft, bearing and etc. CharacteristicsRotate speed up to 20, 00060, 000 rpmExact demensions and consistencyHigh torque, small run-outMechanical stability and long life timeApplicationsApplied in special motor and industrial brushless motors. Special Motor Component General DescriptionSpecial motor component consists of sintered NdFeB magnet and metal parts by glue or injection together with large torque and low noise. CharacteristicsHigh magnetic energyHigh performanceHigh efficiencyApplicationsApplied in various industrial drives, household electronic appliance, disc permanent magnet motors, generators, etc.