Neodymium Magnet Definition
Neodymium magnets (also known as ''NdFeB'', ''Neo'' or ''NB'' magnets) as part of rare earth materials are the strongest permanent magnets made from an alloy of neodymium ''Nd ion ''Fe'' end boron '' 3''. Due to their high magnetic power and relatively low cost, they are preferred by many customers in industrial and technical applications. Southwest Magnetech offers various kinds of bulk neodymium magnets for sale, including neodymium discs, square neodymium magnet or rectangular NdFeb blocks, bars, neodymium ring magnets, round cylinders, cube and rectangular, in a wide range of sizes, premium grades, and finishes. Not all of our neodymium magnets for sale are shown on the website, contact us today if you don't meet what you are looking for.
Custom-Made Neodymium Magnets
As a pro-NdFeB magnet supplier in China, Souwest Magnetech can also customize rare-earth neodymium magnets to fit special requirements. Feel free to send us a request for a quote, or contact us and we have a professional team to help you get the most cost-effective solution. Souwest Magnetech can customize various types of neodymium magnets. If you want to know more about NdFeB magnets and neodymium magnets NdFeB price, Please contact Souwest Magnetech neodymium magnets Supplier.
Neodymium is a silvery gray metal that is highly resistant to corrosion, heat, and electric shock. Because of its magnetic properties, it is commonly used in products such as permanent magnet products, motor armatures and high-strength alloys.
NdFeB rare earth magnets are less prone to cracking and shattering than other rare-earth magnetic materials such as samarium cobalt ("SmCo"), with less cost. However, it should be noted that the NdFeB magnets are more sensitive to high temperatures.
Neodymium magnets for sale are available in different manufacturing grades and can withstand temperatures from below zero to well over 260℃.
Ferrite magnets are non-metallic magnets that do not conduct electricity, while neodymium magnets for sale are alloy magnets that conduct electricity.
The magnetic property of Ferrite magnets is not as high as bulk neodymium magnets for sale.
The stability of ferrite is excellent because it is an oxide itself, while the NdFeB magnet is easily oxidized and needs to be protected by the coating.
Ferrite magnets have good temperature resistance, while ordinary neodymium magnets wholesale can only work at 80℃. It occurs demagnetization when the temperature exceeds 80℃. Whereas, some custom-made neodymium magnets can operate at temperatures up to 260°℃.
The machinability of Ferrite is not good as NdFeB, which can be machined into various shapes.
The neodymium magnets price is higher than ferrite magnets.
The common surface treatment methods for bulk neodymium magnets are metal plating technology, organic coating technology, and composite coating technology, etc.
The strongest type of commercially available permanent magnet is the neodymium magnet, particularly the N52 grade. Neodymium magnets are made from an alloy of neodymium, iron, and boron (NdFeB), which gives them exceptional magnetic strength and high coercivity.
Neodymium magnets are widely used in various industries and applications where strong and compact magnetic fields are required. They have largely replaced other types of permanent magnets, such as alnico magnets and ferrite magnets, in many high-performance applications due to their superior magnetic properties.
NdFeB belongs to the third generation of rare earth permanent magnet material, with the characteristics of small size, lightweight and strong magnetism. NdFeB rare earth magnet is the magnet with the best performance-to-price ratio and is known as the king of magnetism in the magnetic field.
The advantages of high energy density make NdFeB permanent magnet material widely used in modern industry and electronic technology. In the state of bare magnetism, the magnetic force can reach about 3500GS.
Generally speaking, bulk neodymium magnets for sale can be divided into the following categories with grades from Nl5 to N55: square, square, perforated, cylindrical, round, bar, ring, oval, tile, magnet, trapezoid, runway, curved, semi-circular, shaped, etc. As one of the leading neodymium magnets suppliers in China, we offer custom-made for you, just contact us.
NdFeB magnets are very easy to be oxidized and corroded, so they must be treated with strict anti-corrosion treatment. The surface treatment can also make the surface smooth and protect the integrity of the overall magnetic system.
Powerful permanent magnets are typically made of materials known as "rare earth magnets." The two most common types of rare earth magnets used for creating powerful permanent magnets are:
Neodymium magnets: These are the most widely used type of permanent magnets and are made primarily of an alloy of neodymium, iron, and boron (NdFeB). Neodymium magnets are known for their exceptional strength and are used in a wide range of applications, including motors, generators, magnetic separators, and various consumer electronics.
Samarium Cobalt magnets: Another type of rare earth magnet, Samarium Cobalt magnets are made of an alloy of samarium, cobalt, and other elements. These magnets exhibit high magnetic strength and excellent temperature stability, making them suitable for applications in aerospace, military, and high-temperature environments.
Both neodymium magnets and samarium cobalt magnets offer superior magnetic properties compared to traditional magnets like ferrite or alnico magnets, making them ideal choices for applications where strong and reliable magnetic fields are required.
Neodymium magnets wholesale is used in a wide range of applications and is perfect for small parts and components. Typical applications range from art, crafts, and model making to motors and generators, medical instruments, audio components, science & research, etc.
Electric Motors and Generators: Ndfeb neodymium magnets are widely used in electric motors and generators, especially in applications that require high power and efficiency, such as permanent magnet motor generators. They are found in various devices, including electric vehicles, hybrid vehicles, industrial motors, and power tools.
Audio Equipment: Magnet audio is used in speakers, headphones, microphones, and other audio devices to produce high-quality sound with improved efficiency and reduced size and weight.
Magnetic Separators: Ndfeb neodymium magnets are utilized in magnetic separators to separate and remove ferrous materials from different substances, such as in recycling processes, food processing, and mining operations.
Magnetic Fasteners and Closures: Ndfeb neodymium magnets are used in magnetic fasteners, such as door catches, cabinet latches, magnetic clasps for jewelry and bags, and magnetic closures for various applications.
Magnetic Resonance Imaging (MRI) Machines: Ndfeb neodymium magnets play a critical role in MRI machines, creating the strong magnetic fields needed for detailed imaging of the human body.
Magnetic Toys and Educational Tools: Ndfeb neodymium magnets are used in magnetic toys, educational kits, and science demonstrations to showcase the properties of magnetic fields and encourage learning about magnetism.
Aerospace and Defense: Ndfeb neodymium magnets find applications in aerospace and defense industries, including radar systems, sensors, actuators, and magnetic bearings.
Magnetic Levitation (Maglev) Trains: Neodymium magnets are used in Maglev trains, where magnetic levitation is employed to eliminate friction between the train and the tracks, resulting in high-speed transportation.
Wind Turbines: Neodymium magnets are used in the generators of wind turbines, allowing for efficient conversion of wind energy into electricity.
Robotics and Automation: Neodymium magnets play a crucial role in robotics and automation systems, providing compact and powerful actuation and control in various robotic applications.
Green Technology: Neodymium magnets are used in green technology applications, such as in electric vehicle powertrains, wind turbines, and other renewable energy systems, such as magnet recycling.
Ndfeb neodymium magnet can be safe when handled with proper care and precautions. However, there are also present certain neodymium magnet health risks due to their strong magnetic properties. Here are some important points to consider regarding neodymium magnet safety:
Handling Hazard: Ndfeb neodymium magnets have a strong magnetic pull and can snap together with significant force if two magnets or a magnet and a ferrous object come into contact unexpectedly. This can lead to pinching or crushing injuries, especially if fingers or other body parts get caught in between.
Swallowing Hazard: Ndfeb neodymium magnets are small and can be easily swallowed, particularly by young children. If multiple magnets are ingested, they can attract each other within the digestive system and cause serious internal injuries, such as blockages, perforations, or twisting of the intestines. Ingestion of magnets is a medical emergency and requires immediate attention.
Electronic Devices: Ndfeb neodymium magnets can interfere with and damage electronic devices, including smartphones, laptops, credit cards, and pacemakers. Keep them away from such devices to avoid potential damage.
Fragile and Brittle: Ndfeb neodymium magnets are brittle and can break or chip easily if they collide with each other or with a hard surface. Broken fragments can be sharp and cause injury.
Heat and Fire Hazard: Ndfeb neodymium magnets can lose their magnetic properties if exposed to high temperatures, which may occur during machining or soldering. Additionally, they are flammable and can ignite if exposed to high temperatures for an extended period.
Always handle Ndfeb neodymium magnets with care, and avoid allowing them to snap together, especially near fingers or other body parts.
Keep neodymium magnets out of reach of small children and pets to prevent ingestion.
Store them away from sensitive electronics and devices that could be affected by magnetic fields.
Do not attempt to cut, drill, or machine the magnets without proper equipment and safety precautions.
If you suspect that a neodymium magnet has been swallowed, seek medical attention immediately.
In summary, neodymium magnets can be safe when used responsibly and with awareness of their potential hazards. By following safety guidelines and handling them cautiously, the risk of accidents and injuries can be minimized.