Neodymium Magnets China Factory
Rare earth magnets are very strong magnets made from alloys of rare earth elements. They are the strongest among the permanent magnets made. These magnets can be manufactured through sintering, compression bonding, injection molding, and extrusion.
Since their prices became competitive in the 1990s, rare earth magnets have been replacing Alnico and ferrite magnets in many applications in modern technology requiring powerful magnets. Their greater strength allows smaller and lighter magnets to be used for given applications that require high strength. The material is easily magnetized in one direction, but is able to prevent magnetic pull in any other direction.
As a professional magnets manufacturer, AH Magnet is committed to supplying neo magnets with normal and complex shapes. The normal magnet shapes are ring, block, round, disc, are, horeshoe, cylinder, sphere, etc. And, the most suitable magnets should be prpduced according to customers designs, click to learn about custom rare earth magnets.
PRODUCT DESCRIPTION
Materials
Rare earth permanent magnet, Ferrite, Samarium cobalt magnet
About this Item
Although NdFeB magnet is a kind of hard and brittle material, we can customize some complex shapes according to customers requirements. We have produced some complex shapes such as different heads, convex, concave, slotted, side punched, cut corners, non-semi-circular and countersunk magnet.
Different fixtures are needed when make complex samples and mass production. However, we always waive the cost of fixtures once the minimum order are USD100.
We do not set MOQ, maybe 1-5 pieces are also feasible, because the order amount is more calculated based on the magnetic properties and the difficulty of production.
What are the Different Types Of Rare Earth Magnets?
There are two types of rare earth magnets, Neodymium and Samarium-Cobalt. Their shapes can include arc, block, cube, cylinder, disc, rod, sphere and many more. You can browse through our current shapes and sizes to find the right magnet for your application. If you need a custom design, we can work with you to create unique specifications for all shapes and sizes. Contact AH Magnet, an industrial rare earth magnet manufacturer, to find out how we can help provide you custom rare earth magnets.
What are some of the main differences between Neodymium magnets and Samarium-Cobalt magnets?
When deciding between Neodymium Magnets and Samarium-Cobalt Magnets, there are key differences to consider before you make your decision. Some of the main difference between the two types of rare earth magnets are:
Advantages of Each Type of Rare Earth Magnet
Neodymium magnets have the highest energy product of any material, and this type of magnet is known for its ability to be created in a wide range of available shapes, sizes, and grades.
Samarium-Cobalt magnets are known for their corrosion resistance and thermal stability. These characteristics make this type of magnet ideal for applications requiring resistance to wide-ranging temperatures and environments.
Disadvantages of Each Type of Rare Earth Magnet
Neodymium magnets are susceptible to corrosion and often require a protective coating. AH Magnet offers protective coating in the following materials: nickel, zinc, tin, silver, gold.
Samarium-Cobalt magnets are known for being more expensive compared to other types of magnets because of their durability in harsh, high-temperature environments.
Rare Earth Magnet Shapes
AH Magnet develops rare earth magnets in different shapes and sizes depending on the application. Some of the most common shapes for rare earth magnets include:
Arc, Bar, Rod, Disc, Horseshoe, Channel, Block, Ring, Sphere, Cylinders, Plugs.
Applications of Rare Earth Magnets
Magnetic Separators, Wind Turbines, Linear actuators, Microphone assemblies, Servo motors, Tape recorders, Alternators, Pacemakers, Stepper Motor, Permanent Magnet Synchronous Motor, DC motors (automotive starters), Flow meters, Holding Assemblies, Lifting Magnets, Magnetic Fanners.
Caution!
Extreme caution must be taken when working with rare earth magnets. Magnets larger than a few centimeters are strong enough to cause injuries to body parts pinched between two magnets, or a magnet and a metal surface, even causing broken bones. Magnets allowed to get too close to each other can strike one another with force to chip and shatter the brittle material, and the flying chips can cause injuries.
As we know, the neodymium iron boron magnets contain 64-66% iron, so it is prone to be corroded and oxidized if coatings are not adopted. Both appearance and magnetic properties of uncoated high performance neodymium magnets would be affected under high temperature, acid condition, alkaline environment, seawater, etc. All in all, coating is necessary to magnets.
Custom Neodymium Magnets
AH Magnet carries a large inventory of licensed, permanent, Rare-Earth magnet materials. Magnetic properties for Rare-Earth magnet materials far exceed those of ceramic or alnico materials, making them the preferred magnetic material for many technical applications. We offer rare earth magnets in off-the-shelf standard sizes, shapes and grades, or in build-to-print custom magnet configurations.
We design and build custom rare earth magnets and magnetic assemblies, manufactured to meet your specialty requirements. Please send us a request for a quote or contact us，Learn more about available standard magnets and our custom rare-earth magnet manufacturing capabilities.
Buy neodymium magnets in AH Magnet. Custom neodymium N52 magnets (Neo Magnets) according to your company requirements. We sell all grades of neodymium magnets, custom shapes, sizes, and coatings. AH Magnet is an ISO9001 accredited Chinese manufacturer/Chinese supplier of all kinds of high performance permanent magnets products with over 30 years of experience in the field. Our headquarter is located in Anhui Province and we have two active sintered neodymium iron boron magnets factories in Anhui and Zhejiang China covering a combined area of 80,000 square meters.
Sourcing Standard Neodymium Magnets? Have Drawings & Need A Quote? Designed for Your Application?
Why choose factory custom neodymium magnets:
DESCRIPTION of AH Magnet Coating Neodymium Magnets
Materials
Neodymium Iron Boron Magnet
About this Item
There are more than 10 coating methods and coating is high temperature resistant, solvent resistant, and multi-colored.
The common ways include Nickel-Copper-Nickel (Ni-Cu-Ni), Nickel (Ni), Tin (Sn), Zinc (Zn), Gold (Au), Expoxy, etc.
Otherwise, magnets with high temperature resistance can be coated with rubber and silicon.
Application
Speaker magnet, sensor magnet, tractor magnet, wind generator magnet, magnetic separator magnet, arc magnet, etc.
Arc magnets are mainly used in permanent magnet DC motors. Unlike electromagnetic motors that generate magnetic potential sources through excitation coils, PM motors use permanent magnet materials to generate constant magnetic potential sources. Instead of electric excitation, permanent arc magnets have many advantages, which can make the motor simple in structure, convenient in maintenance, light in weight, small in size, reliable in use, low in copper consumption, and low in energy consumption.
Standard Neodymium Magnets
Neodymium magnets (also known as Nd-Fe-B) is one type of rare-earth permanent magnet. And it is an important component for electric vehicles, house appliances, robots, garden tools, medical equipment, etc.
AH Magnet is specialized in researching, developing, manufacturing and exporting high-performance sintered neodymium iron boron magnets, 47 grades of standard neodymium magnets, from N33 to 35AH, and GBD Series from 48SH to 45AH are available. All magnets are widely applied to electric motors such as servo motors, stepper motors, brushless motor, linear motors, permanent magnet synchronous motors, etc.
Aim to increase the corrosion resistance of sintered neodymium iron boron magnets and to meet the designated surface requirements, we provide the normal coating layers, like nickel-coating, zinc-coating, epoxy-coating, aluminum-coating and passivation. We also customized composite coating to ensure durability of magnets according to different design and application environment of permanent magnets.
Find the suitable NdFeB to meet your design requirements from the following sheet and download the related files. And FIVE important keys should be considered when you choose from these grades.
BR
BH Max
HCJ
HCB
MAX TEMPREATURE
PRODUCT DESCRIPTION
Materials
Sintered Neodymium Magnet
About this Item
The maximum diagonal length of arc magnet which produced by AH Magnet is 200mm, and the maximum orientation length is 60mm.
Non-magnetized, magnetized or multi-pole magnetized are applicable.
Application
Brushless DC Motor, Traction Machine, Wind Power Generator, Magnetic Separator, Servo Motor, etc.
Halbach Array Ring Neodymium Magnetic
The Halbach Array is entirely composed of rare earth permanent magnet materials. By arranging the permanent magnets with different magnetization directions according to a certain rule, the magnetic field lines can be concentrated on one side of the magnet, and the magnetic field lines can be weakened on the other side, thereby obtaining an ideal unilateral magnetic field. This is of great significance in engineering. With excellent magnetic field distribution characteristics, Halbach Arrays are widely used in industrial fields such as nuclear magnetic resonance, magnetic levitation, and permanent magnet motors.
PRODUCT DESCRIPTION
Materials
N48M NdFeB Magnet & Stainless Steel
About this item
The surface treatment for magnets is NiCuNi, and Zn for steel.
Application
Linear Halbach Arrays: To be used for brushless AC motor, voice coils, high-tech applications such as particle accelerators and free-electron lasers.
Halbach Cylinder: Applied for magnetic couplings, brushless AC motors and high field cylinders. Both brushless motors and coupling devices use multipole field arrangements.
The laminated magnets are high performance as same as or even superior to overall magnet assemblies in reducing eddy current loss. Fewer eddy current losses means lower heat and greater efficiency. More and more laminated magnets are applied to motors, especially electric vehicles motors.
PRODUCT DESCRIPTION
Materials
Neodymium Magnets
About this item
Excellent consistency of table magnetic.
Excellent resistance to high temperature and humidity of the anti-corrosion properties.
Cost saving.
Application
Electric vehicles, automotive, mining, etc.
As the leading China Magnets Manufacturers, AH Magnet is also Rare Earth Magnet and Neodymium Magnets China Suppliers. We specialized in researching, developing, manufacturing, and exporting high-performance sintered neodymium iron boron magnets.
Click here for more information.
https://www.ahmagnet.com/laminated-magnets/block-laminated-magnet-assembly.html