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Uses of Neodymium Magnets in the Industry

Introduction

Neodymium magnets are made from neodymium, iron, and boron, a rare earth metal component of mischmetal (mixed metal). Neodymium magnets are the strongest known compared to their mass, with even tiny neodymium magnets capable of supporting hundreds of times their weight. While being a “rare” earth metal, neodymium is readily accessible, allowing the production of neodymium magnets to become commercialized. In addition to being utilized in jewelry, toys, and computers, neodymium magnets are employed in various other industries. This article focuses on the general use of Neodymium Magnets. Read on to learn more.

Neodymium Magnet Overview

The most powerful form of permanent magnets today is neodymium iron boron magnets (NdFeB, Neo, or NIB magnets), which have magnetic capabilities that considerably surpass alnico and ceramic(ferrite) magnet materials. Sintered Neodymium magnets have a strong remanence(Br) and substantially greater magnetic coercivity than other permanent magnets, making them ideal for many applications. Low-cost and accessible in various sizes and grades are just some of why they’re so popular.

Strong permanent magnets, such as those used in technical, industrial, and commercial settings, are often made using neodymium magnets, a rare-earth magnet type. Smaller and lighter parts have significantly reduced the cost of finished magnetic assemblies and components.

Neodymium Magnet Applications

To utilize neodymium magnets, you must know how to work with them. Both commercial and industrial use necessitates their usefulness. The following are examples of how they’ve been put to use:

Electrical Engineering Field

Neodymium permanent magnet motors account for more than a third of the total production of the material. A permanent magnet motor made of neodymium magnets features various advantages, including copper savings, light-weight, power savings, compact size, and high specific power. These make it an excellent choice for applications that need high torque. Electric bicycle motors, refrigerator air conditioner motors, elevator traction motors, wind-driven motors, and many more are examples of employing neodymium magnets. Neodymium magnets, for example, transform electrical energy into mechanical energy in electric motors. A generator does the opposite by moving a wire through a magnetic field, transforming mechanical energy into electrical power.

Electroacoustic and Audio-visual Application

There are a variety of applications for Neodymium magnet technology: speakers and microphones; stereo headphones (MP3, MP4); electroacoustic sensors; and other devices that utilize them. Two neodymium magnets and an electric current regulate the speakers. A fast-moving electric current is forced through a movable electromagnetic coil near a stationary neodymium magnet. In this way, the coil is charged, which causes the neodymium magnet to attract and repel it, resulting in vibrations that resonate in the form of music in users’ ears.

Health Industry: Magnetic Therapy and Fitness Equipment

Neodymium magnets are used to make magnetic balls, magnetic therapy cups, magnetic therapy machines, magnetic therapy caps, magnetic therapy shoes, magnetic therapy bracelets, and necklaces, among other things.

In addition, MRI, a medical gadget that has grown quickly in recent years, uses neodymium magnets. Medical imaging instruments such as MRIs scan the patient’s body in microscopic detail. A picture of the electrons in each atom of your body is captured using neodymium magnets. Depending on the tissue, the impact is different, providing a valuable diagnostic picture in the medical profession.

New applications for this neodymium magnet have developed every year since its creation, and the yearly growth rate has exceeded 30 percent. As a result, neodymium magnets have a wide range of health-related applications.

Magnetic Tools

Jewelry is rife with neodymium magnets. Neodymium magnet-based clasps are the most convenient, so piercing-free earrings rely on them. Neodymium magnet-based chains that instantly transform from bracelet to necklace have been widely available.

The scientific community hasn’t made a final conclusion about magnetic treatment yet, but the number of individuals who use it religiously is impressive. According to this school of thought, wearing magnetic jewelry or other objects for patients in magnotherapy by regularly exposing part of their body to a magnetic field can lead to enhanced blood flow, pain alleviation, or several other claims.

Microwave Communication Technology

Radar technology, remote control telemetry, satellite communications, electronic countermeasures, and electronic tracking are all examples of applications where neodymium magnets have been employed extensively. Other applications include magnetron traveling wave tubes, magnetron tubes, circulators, and cathode-ray tubes, utilizing neodymium magnets in their construction.

Magnetic Toys

Toys also feature neodymium magnets as parts. Toys that use neodymium magnets for children and adults to enjoy are a common sight. Many household toys contain neodymium magnets, so adults should always supervise children when playing with electric toys. Because small neodymium magnets can suffocate children, parents must educate their children on safely handling and maintaining these types of neodymium magnets.

Magnetic Mechanical Engineering Field

Magnetic gears, magnetic fixtures, magnetic brakes, magnetic salvage devices, magnetic pumps, magnetic bearings, magnetic valves, magnetic locks, magnetic seal doors, permanent neodymium magnet conveyors, and neodymium magnet jack, among other things, are all made from neodymium magnets.

Thanks to magnetic bearings, we may support moving components without physical touch. The neodymium-magnet application may achieve relative motion with minimum friction and no mechanical wear, even at very high speeds. Active magnetic bearings are those that use an electromagnet, whereas passive magnetic bearings are those that employ a permanent magnet like neodymium magnets.

Transportation Industry

Additionally, we may find neodymium magnets in various transportation applications, including magnetic suspension trains and luxury automobiles for permanent neodymium magnet devices such as windshield wipers, window lock actuators, oil pump motors, door lock actuators, starter motors, and many more.

It may also be used in various situations, from rescuing underwater metal vehicles from the ocean floor to rescuing metal parts that have been dropped. Neodymium magnets are a good option since they don’t have any moving components and can raise much weight. The main drawback is that it only works with ferromagnetic things.

Magnetic Separation Technology

Magnetic separation technology refers to magnetic technologies to separate ferromagnetic compounds from non-ferromagnetic ones. For example, magnetic separation has been utilized extensively in mining, coal preparation, water treatment, raw material treatment, waste treatment, medical treatment, food industries, and more. In most processing plants, magnetic separation systems remove ferrous and paramagnetic contaminants from production and processing lines. This process often uses a conveyor system and powerful filter rod neodymium magnets.

Business Displays & Signage

More companies are turning to magnetic fasteners to keep their signage in place and attract consumers. Metal walls or separators in buildings (such as offices) frequently need minimal surface preparation when used in retail displays. Magnetic car solutions may also not harm the paint and merely need peeling off.

You may not be aware of neodymium magnets every time you enter a store or a restaurant, but they are always there. These signs and stands are kept together by tiny but powerful neodymium magnets or hung from steel ceilings with hook neodymium magnets because of the small but strong neodymium magnets.

Magnetic Storage

A magnetic cosmetics board might aid you if you have many cosmetics on the table. Rare earth neodymium magnets and iron plates support the vertical storage of cosmetics collections.

Permanent neodymium magnets may be utilized to keep pins, needles, paper clips, and more. Make a magnetic pin dish if your table is littered with pins.

Conclusion

Neodymium magnets are excellent materials with outstanding characteristics (e.g., high magnetic force and low price), which compel people to produce and use them for various new purposes yearly. In addition, it is a material that has been used for many years without severe changes, so the market situation is stable, and the development trend is steady, leading the neodymium magnets to be widely applied in producing various kinds of machinery.

The prospects for neodymium magnets are excellent as well. With the rapid development of science, technology, and economic globalization, this sector has become increasingly interconnected with other sectors in recent decades. This development also shows that new magnet materials are indispensable elements in modern society. In short, neodymium magnets are developing very rapidly. At the same time, the development of neodymium magnets will also bring about changes in the industrial structure and technology.

ROBO Magnetic is one of the leading neodymium magnet suppliers worldwide, manufacturing permanent neodymium magnets according to customers’ requirements in composition, magnetic characteristics, shapes, and sizes. Regarding the production of Neodymium Magnets, ROBO Magnetic offers a comprehensive range of services. We offer a wide range of sizes and grades of Neodymium magnetic alloys. ROBO Magnetic manufactures high-quality neodymium magnets that customers may use in various applications. For a price estimate, kindly fill out the form on the ROBO Magnetic contact us or e-mail your question/request to sales@robomagnetic.com.

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Article by

ROBO Magnetic Product Team

We are the manufacturer with 16 years of experience in custom neodymium magnets.

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