Neodymium Magnets
What is Neodymium Magnets
Neodymium magnets are strong permanent magnets made from an alloy of rare-earth elements. They are a type of rare-earth magnet, and they are the most widely used rare-earth magnet. They’re also the strongest kind of permanent magnet commercially available.
Benefits of Neodymium Magnets
Unmatched Magnetic Strength
The key advantage of Neodymium magnets is their extraordinary strength. As one of the strongest permanent magnets available, they generate high magnetic fields with minimal material. This makes them ideal for applications that require compact yet powerful magnetic force, such as in electric motors, sensors, and hard drives.
Resistance to Demagnetization
In industrial environments where precision and reliability are crucial, Neodymium magnets offer excellent resistance to demagnetization. This ensures that they maintain their magnetic properties over time, even under intense working conditions. As a result, industries like aerospace and robotics rely on Neodymium magnets for critical components where consistent performance is essential.
Customization for Specific Applications
At Advanced Magnet Source, we understand that every project is unique. That’s why we offer custom Neodymium magnets tailored to specific size, shape, and coating requirements. Our team of engineers works closely with clients to develop magnets that meet the precise needs of their applications, ensuring optimal performance and durability.
Cost-Efficiency in Production
Despite their high-performance characteristics, Neodymium magnets offer great value for money. Due to their efficiency in producing strong magnetic fields, less material is needed compared to other types of magnets. This results in cost savings for businesses, particularly in mass production environments where efficiency and budget constraints are paramount.
Ndfeb magnet is the permanent magnet with the strongest magnetic force at room temperature so far (second only to holmium magnet at absolute zero, but far stronger than all known permanent magnets at room temperature). The material grade is N35-N52; Various shapes can be processed according to specific requirements: round, square, punched, magnetic tile, magnetic bar, convex and so on
Why Choose Us
Quality Service
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Fast Delivery
Shipping Guarantee: Package information can be tracked. If you have not received your package after 45 days, please contact us, and we will issue a full refund.
Our Certificate
We believe that our company's success is directly related to the quality of the products we offer. They meet the highest quality standards as stipulated by ISO 9001, ISO 14000:14001, SGS guidelines, and our stringent quality control system.
Application
The company focuses on the research, development, and production of precast concrete magnets, fishing magnets, magnet hooks, and magnetic separators. Our products are widely used in precast concrete, food, medicine, chemicals, minerals, industrial filtration, recycling, and other industries.
Explore The Various Types Of Neodymium Magnets
Sintered neodymium magnets
Sintered neodymium magnets are the most common and widely used type.
Manufacturing involves a powder metallurgy process in which neodymium, iron, and boron are sintered together.
Known for their high magnetic field strength, these magnets find applications in electric motors, speakers, and various electronic devices.
Bonded Neodymium Magnets
Bonded neodymium magnets are made by mixing neodymium powder with a polymer binder.
While not as strong as sintered magnets, they have advantages in complex shapes and isotropy.
Applications include magnetic sensors, magnetic couplers, and magnetic filters.
Radial Ring Magnet
Radial ring magnets are shaped like a ring with a radial magnetic field.
These magnets are commonly used in applications that require circular magnetic fields, such as medical equipment and magnetic couplers.
Temperature-resistant neodymium magnets
Neodymium magnets are prone to demagnetization at high temperatures.
To address this limitation, temperature-resistant neodymium magnets are designed to withstand higher temperatures, making them suitable for applications in motors and electronics that generate heat.
Waterproof Neodymium Magnet
Certain applications, such as marine environments or underwater equipment, require magnets that can resist corrosion and maintain their performance in wet conditions.
Waterproof neodymium magnets are specially coated to repel moisture, ensuring their longevity and functionality in challenging environments.
High coercivity neodymium magnets
Coercivity is the ability of a material to resist demagnetization.
High coercivity neodymium magnets are engineered to resist demagnetization, providing stability and reliability in applications where external magnetic fields may be present.
Micro Neodymium Magnets
Where space is limited, such as in microelectronics or medical equipment, tiny neodymium magnets play a vital role.
These compact magnets maintain strong magnetic properties and can be integrated into small applications efficiently and space-savingly.
Custom Neodymium Magnets
Manufacturers can customize neodymium magnets to specific requirements.
Custom neodymium magnets offer flexibility in shape, size, and magnetic strength to meet the unique needs of different industries and applications.
The NdFeB magnet is a permanent magnet material based on the intermetallic compound Nd2Fe14B. Its main components are the rare earth elements neodymium (Nd), iron (Fe), and boron (B). The third-generation rare earth permanent magnet NdFeB is the most powerful permanent magnet among contemporary magnets. Its main raw materials are neodymium 29%-32.5%, iron 63.95-68.65%, boron 1.1-1.2%, dysprosium 0.6-8%, niobium 0.3-0.5%, aluminum 0.3-0.5%, copper 0.05-0.15% and other elements.
Top 8 Uses for Neodymium Magnets
Magnetic Resonance Imaging System
Magnetic Resonance Imaging System (MRI) is a cutting-edge medical imaging diagnostic equipment. It can be used to obtain images of any section of the human body. It is extremely sensitive to soft tissue lesions and is very effective for the diagnosis of cancer, tumors, and cerebrovascular, and nervous system diseases.
Magnotherapy
Magnetotherapy is a method that uses artificial magnetic fields to apply to human meridians, acupuncture points, and lesions to treat certain diseases. The professional magnetic therapy equipment from the hospital has effects on hypertension, arthritis, headache, insomnia, coronary heart disease, gastroenteritis, facial muscle spasms, sprains, and cervical spondylosis.
Audio Equipment
As one of the most important components of audio equipment, a speaker is a kind of transducing device that converts the electrical signal into an acoustic signal. It is composed of many small parts, and the neodymium magnet is one of the important parts.
Lifting Large Loads
A magnetic crane is a lifting device that lifts objects by magnetic force. It has the characteristics of small size, strong lifting capacity, no need for electricity and other energy drives, and high safety. It is suitable for handling steel plates, iron blocks, and cylindrical steel materials, such as mechanical parts, punch molds, and various steel materials.
Permanent Magnet Motors
The advantages of permanent magnet motors are copper saving, power saving, lightweight, small size, and high specific power. Permanent magnet motors are widely used in electric bicycle motors, computer-driven motors, elevator traction machine motors, refrigerator, and air-conditioning motors, wind-driven motors, automobile-driven motors, and other fields.
Magnetic Separation Technology
The technique of using magnetism to separate ferromagnetic substances from non-ferromagnetic substances is called magnetic separation technology. Magnetic separation technology has been widely used in beneficiation, coal preparation, raw material treatment, water treatment, garbage treatment, as well as in medical, chemical, and food industries.
Microwave Communication Technology
NdFeB magnets are widely used in radar technology, satellite communications, remote telemetry, electronic tracking, and electronic countermeasures. In addition, NdFeB magnets are also used in magnetron tubes, magnetron traveling wave tubes, and cathode-ray tubes.
Magnetization Technology
Magnetization technology refers to the use of a magnetic field to magnetize a substance, change the bonding state and nature of the substance being magnetized, or change the state of atoms and electrons, promote the chemical reaction of the substance and the combustion of the fuel, or change the crystal form or freezing point of the substance.
Because rare-earth magnets are very brittle and prone to corrosion, they are typically coated or plated to protect them from breaking or chipping. Without a coating or plating, the neodymium magnet can flake and chip, leaving sharp pieces behind.
Nickel Coated Magnet
The most common plating process is a two layer process where copper is used as the first (interior) coating and nickel is used as the second (exterior) coating. Three-layer coatings with nickel, then copper, then nickel, can be ideal for high abrasion environments. Other coatings may include zinc, gold, and other epoxies, plastics, metals, or polymers.
The plating of neodymium magnets is an important process. The neodymium substrate can oxidize quickly without a protective layer, leading to significant damage to the magnet.
When magnets are broken or chipped and the inner layer is exposed, it’ s important to dispose of the magnet as quickly and safely as possible. Because neodymium magnets are designed with a microcrystalline structure, they produce small and often invisible shards that can become embedded in skin or eyes.
How to maintain Neodymium Magnets
Maintaining neodymium magnets is crucial to ensure their long-term performance and prevent any degradation of their magnetic properties. Here are some guidelines for proper neodymium magnet maintenance:
Handle with Care
Neodymium magnets are brittle and can chip or break easily. Handle them with care to prevent physical damage.
Avoid dropping or subjecting them to impact, as this can result in cracks or fractures that compromise their effectiveness.
Protect Against Corrosion
Neodymium magnets are prone to corrosion, especially in humid or harsh environments.
Use appropriate coatings or plating (such as nickel, zinc, or epoxy) to protect the magnets from moisture and corrosion. Regularly check for signs of corrosion and reapply coatings as needed.
Keep Them Dry
Moisture can lead to corrosion and a reduction in magnetic strength. Keep neodymium magnets dry at all times.
If the magnets do come into contact with water, dry them thoroughly immediately. Avoid prolonged exposure to damp conditions.
Avoid High Temperatures
Neodymium magnets can lose their magnetic strength at elevated temperatures.
Operate neodymium magnets within their specified temperature range. If the application involves high temperatures, consider using temperature-resistant neodymium magnets designed for such conditions.
Prevent Demagnetization
Be cautious when exposing neodymium magnets to strong external magnetic fields, as this can lead to demagnetization.
Store magnets away from other magnets or magnetic materials that could affect their magnetic properties.
Use Non-Abrasive Cleaning Methods
When cleaning neodymium magnets, use non-abrasive materials to avoid scratching the surface.
Gently wipe them with a soft, dry cloth to remove dust and debris. For more stubborn contaminants, use a mild detergent and water solution.
Store Properly
Store neodymium magnets in a cool, dry place away from direct sunlight.
Keep them separated from other magnets and magnetic materials to prevent unintentional magnetic interaction.
Regular Inspection
Periodically inspect neodymium magnets for any signs of damage, corrosion, or loss of magnetic strength.
Replace or repair magnets that show visible defects to maintain optimal performance.
How to Choose a Neodymium Magnet
The Temperature
Under normal circumstances, the decrease of the temperature has little effect on the performance of magnets, but they are very sensitive to the temperature increase. Each type of magnet has the maximum temperature that it can withstand and the neodymium magnet is no exception. If the temperature of its working environment exceeds this temperature, the neodymium magnet may be demagnetized and its performance will be reduced. Therefore, when buying a neodymium magnet, you'd better make sure that the temperature of its working environment is not higher than the temperature it can withstand.
The Coating
The coatings of NdFeB magnets are generally nickel, copper, chromium, gold, black zinc, blue and white zinc, epoxy resin, etc. Depending on the coating, the color of the magnet surface will be different, the corrosion resistance will be different, and the service life will also vary. Therefore, when buying a magnet, you can choose different coatings according to the working environment of the magnet. If the working environment of the neodymium magnet is harsh, you can choose the coatings that are more resistant to corrosion, such as polymer materials and epoxy resins, and vice versa.
The Dimensional Tolerance
The shapes of NdFeB permanent magnets used in practice are various, such as discs, cylinders, cylinders (with inner holes), squares, square columns, tiles, sectors, trapezoids, polygons, and various irregular shapes, etc. NdFeB permanent magnets of each shape come in different sizes, making it difficult to be molded once in the production process. A qualified neodymium magnet not only needs to meet the performance standards, but the dimensional tolerance should also be within the acceptable range. If the magnet you purchase is used for precision instruments, then you need to pay more attention. The requirement of the dimensional tolerance of the neodymium magnet used in precision instruments is relatively strict. Otherwise, the size is too large to fit into the device.
Our Factory
Xiamen Qianci Magnet Technology Co., Ltd. was founded in 2000, has a history of more than 20 years, ourcompany is located in Xiamen, Fujian province, is a specialized production and sales of magnet materials, magnet components suppliers. Since the completion of the factory in 2000, our company has continuously innovated products, from the initial iron and boron magnets to now have eight series of products, the company has realized the evolution of products from single to mixed forms, and constantly strengthen its own advantages. More than 100 million new magnet magnets have been transported to the world. For motor, generator and speaker, etc. Our company has always adhered to the "quality first, customer first, quality service, abide by the contract" purpose, with high quality products, good reputation, quality service, products sold in the world Europe, whole heartedly with domestic and foreign merchants win-win cooperation, common development, create brilliant!
Certifications
We always feel that all success of our company is directly related to the quality of the products we offer. They meet the highest quality requirements as stipulated in ISO9001, ISO14000:14001 SGS guidelines and our stringent quality control system.
●ISO/TS16949, VDA6.3, ISO9001, ISO14001 certification company, RoHS, Reach, SGS compliance with products.
●More than 100 million new magnet magnets have been transported to the world. For motor, generator and speaker, etc.
●Senior experts can meet your most complicated requirements.
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