Neodymium Magnets

About Us

Yitech is mainly engaged in the production and sales of tungsten alloy, molybdenum alloy, tungsten carbide, PVD/CVD sputtering target, titanium alloy, zirconium, Iridium, beryllium, Stellite alloy and rare earth metal products.

Why Choose Us

Competitive Pricing

We offer competitive pricing for our services without compromising on quality. Our prices are transparent, and we do not believe in hidden charges or fees.

Quality Assurance

We have a rigorous quality assurance process in place to ensure that all our services meet the highest standards of quality. Our team of quality analysts checks each project thoroughly before it is delivered to the client.

Best After Service

Provide professional installation and training. Detailed operation manual and video for customer installation. Any problems will be solved within 24 hours. Broken parts will be sent to customer by air during guarantee period.

Customization Services

We understand that each customer's requirements are unique, and thus, we provide customization services. We are very glad to closely collaborate with customers, understand their specific needs, and provide tailored solutions accordingly.

Rectangular Neodymium Pot Magnet
Rectangular neodymium pot magnet is a type of permanent magnet assembly that consists of a neodymium magnet encapsulated within a steel shell, typically in a rectangular shape. The steel casing...
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Neodymium Pot Magnet with Internal Thread
Pot magnet with external thread can be held tightly with screws. The pulling force can be customized according to needs, and the pulling force can be increased or decreased without changing the...
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Rare Earth Neodymium Pot Magnet
Rare earth neodymium pot magnet is a type of permanent magnet that utilizes neodymium, a rare earth element known for its exceptional magnetic strength. The pot magnet design consists of a...
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Neodymium Magnets Rare Earth Disc
Neodymium rare earth disc magnets are a type of rare earth magnet known for their strong magnetic properties. They are composed of neodymium, iron, and boron—hence the chemical formula NdFeB....
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NdFeB Arc Magnets
NdFeB (Neodymium Iron Boron) magnets, when shaped into arcs, are known as NdFeB arc magnets. These magnets maintain the strong magnetic properties of neodymium magnets but are designed to provide...
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NdFeB Block Magnets
NdFeB block magnets are a type of neodymium iron boron magnet that has been shaped into a block or rectangular form. These magnets are known for their high magnetic strength and are used in a wide...
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Neodymium Ring Magnets
Neodymium ring magnets, are circular magnets with a hole through the center, creating a ring-shaped magnetic field. These magnets are known for their high magnetic strength and are a type of rare...
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Alnico Shallow Pot Magnets
Alnico shallow pot magnets are a type of permanent magnet that utilizes the Alnico alloy, which is composed of aluminum (Al), nickel (Ni), cobalt (Co), and iron (Fe), often with small amounts of...
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NdFeb Pot Magnets
NdFeb pot magnets, also known as neodymium-iron-boron (NdFeB) pot magnets, are a type of permanent magnet that utilizes the NdFeB alloy, which is composed of neodymium (Nd), iron (Fe), and boron...
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What is Neodymium Magnets

A neodymium magnet is a permanent magnet made from an alloy of neodymium, iron, and boron to form the Nd2Fe14B tetragonal crystalline structure.They are the most widely used type of rare-earth magnet.

Benefits of Neodymium Magnets

01/

Convenience and Ease of Use
Neodymium magnets are simple to attach and remove without the need for complex tools or equipment. They can be a great alternative when you want to join objects or materials without drilling holes or welding.

02/

Quick Fastening and Unfastening
Magnet fasteners are usually easy to install without the need for tools, reducing assembly time. The Magnetic assemblies can be quickly or simplely snap or pull. saving time compared to traditional fasteners that may require threading or buttoning.

03/

Quiet Operation
Since rare earth neodymium magnets can replace drilling and welding. Which are user-friendly and don't create loud sounds during installation or removal, contributing to a more comfortable and pleasant experience.

04/

Minimal Wear and Tear
Traditional fasteners, like buttons or zippers, can wear out over time with repeated use. Strong holding force magnetic fasteners are less prone to such wear and tear, resulting in longer-lasting performance.

05/

No Snagging or Tangling
Zippers and Velcro can sometimes snag on fabric or other objects. Using magnet fastener can reduce the risk of damage or frustration.

06/

Durability
Durable magnetic fasteners are less likely to break than traditional ones, making them long-lasting and reliable.

07/

Used in wide range of applications
You can use the Neodymium fastener magnets in a wide range of applications. Which includes clothing, bags, jewelry, and even some types of doors and cabinets, because of their versatility.

08/

Aesthetically Pleasing
Bonded neodymium magnets covered in rubber and come in various colors and shapes. The rubber coating magnets with colorful options make them visually attractive and enjoyable to use.

09/

Reusability
Magnet fasteners allow for frequent disassembly and reassembly without damaging the materials. Fastening magnets are highly reusable, as they don't experience mechanical wear and maintain their magnetic strength over many cycles.

10/

Non-damaging
Rubber Coated Magnets, Pot Magnets, and Channel Magnets don't harm surfaces they stick to, unlike regular fasteners. Magnetic fasteners are non-invasive, leaving surfaces clean and free from damage. Coated neodymium magnets are ideal for applications where aesthetics matter.

11/

Customization
Manufacturers can design magnetic fasteners in various sizes, shapes, and strengths to suit specific needs and applications.

12/

No Need for Special Tools
Traditional fasteners like sewing buttons may require specific tools and skills for installation or repair. Magnetic connectors are generally easier to install and replace.

What Are Neodymium Magnets Made Of

Neodymium magnets are made primarily from an alloy of neodymium, iron, and boron. The exact composition can vary depending on the strength needed and what that magnet is being used for. There are two main manufacturing types for neodymium magnets: sintered and bonded.
Sintered neodymium magnets are made by heating the alloy components in a furnace, then this mixture is cast into molds and cooled to form ingots which are ground into a fine powder and pressed into molds. The molds of powder are sintered to become dense blocks. (Sintering is the process of compacting and forming a solid mass of material by heat or pressure without melting it to the point of liquefaction.) The material is cut into its final shape, coated or plated, and then magnetized.
Bonded neodymium magnets combine neodymium alloy powder with a polymer binder. The components are pressed or extruded to make more complex shapes and magnetization powders than are typically available in sintered magnets.

Why is neodymium so magnetic

Neodymium is a rare-earth metal, and it is also ferromagnetic. It means; that like iron, neodymium can be magnetized. It is not found naturally in a metallic form, and neodymium is always mixed with other lanthanides because it is very reactive.

We have written a lot about neodymium because we have a passion for strong magnets, but the chemical element Nd does not have the magnetic force before it's refined.

Neodymium is the second most abundant on the rare-earth elements and it is found in lanthanide minerals. It is mixed with other elements, but it is not so rare, because it comes in very large quantities.

To become a strong magnet, neodymium is processed, usually in liquid form, together with iron and boron to form the tetragonal crystalline structure. The alloy is composed of microcrystalline grain. They are being manufactured and magnetized, so their magnetic axes point in the same direction.

The pull strength a neodymium magnet can achieve is the strongest of the permanent magnets you can buy. It is so strong because it has a very high state of saturation, magnetization.the magnetic energy the combination of neodymium, iron, and boron can store, makes the alloy very magnetic.

The resistance of the crystal lattice to turn its direction of magnetization, results in coercivity and means, that Neodymium magnets are very hard to de-magnetize.

So don't worry about the danger of your super magnets losing their strength.it is possible, but in protected circumstances, a neodymium magnet will not lose any noticeable strength. Extreme heat and other very powerful magnets could demagnetize some of the strength, but if you use it in your daily life, this is not a thing you should worry about.

How are Neodymium Magnets Made

Sintering
To give the green magnet its ultimate magnetic qualities, sintering uses heat below its melting temperature to condense and shape it. In an inert, oxygen-free environment, the process must be carefully monitored. The performance of a neodymium magnet can be ruined by oxidation. To drive the particles to cling to each other, it is crushed at temperatures up to 1080° C but less than their melting point. A quench is used to quickly freeze the magnet and reduce phases, which are alloy types with weak magnetic characteristics.

Melting
To make an alloy, the Neodymium, Iron, and Boron are calculated and placed in a vacuum arc furnace. Other elements, including cobalt, copper, gadolinium, and dysprosium, are added for specific grades to help with corrosion resistance. Electrical eddy currents generate heat in a vacuum to keep contaminants out.

Powdering and Pressing
This melted alloy is cooled and they are jet-milled in a nitrogen cryogenic atmosphere and converted into powder. This powder is then pressed into dye and they are moulded into desired shapes. The material is subjected to a magnetic field during pressing. It is then pushed into a larger form in a second die, aligning its magnetization along with the pressing direction. Fixtures that produce magnetic fields while pressing are used in some approaches to align the particles.
Just before a pressed magnet is released, it is given a demagnetizing pulse, which causes it to become demagnetized, resulting in a green magnet that crumbles easily and has low magnetic qualities.

Machining, Coating, Magnetization
To shape sintered magnets to the right tolerances, diamond or wire cutting edges are used. Because neodymium oxidizes rapidly and therefore is vulnerable to corrosion, its magnetic characteristics can be lost. Acrylic, nickel, copper, zinc, tin, and other types of coatings are used to preserve them. Despite the fact that the magnet has a magnetization direction, it is not magnetized and must be quickly subjected to a strong magnetic field, which is created by a wire coil that surrounds the magnet. To generate a strong current electricity, a capacitor and high voltage are used in the magnetizing process.

Bonding
Bonding, also known as compressive bonding, is a dye-pressing technique that combines a neodymium powder mixture as well as an epoxy binder. The mixture consists of 97% magnetic particles and 3% epoxy.
This epoxy and neodymium combination is either pressed or extruded and baked to cure. Magnets can be moulded into complicated forms and patterns because the mix is compressed onto a die or extruded. Compression bonding creates magnets with close tolerances without the need for further procedures.

Typical Magnetic and Physical Properties of Neodymium Magnet Material

Neodymium Material	Density		Max. Energy Product BH (max)	Residual Induction Br	Coercive Force Hc	Intrinsic Coercive Force (Hci)	Maximum Operating Temperature
	lbs/in3	g/cm3	MGO	Gauss	Oersteds	Oersteds	F
Neodymium 30H	0.267	7.4	30	11000	10500	17000	248
Neodymium 35	0.267	7.4	35	12300	10500	≥12000	176
Neodymium 40	0.267	7.4	40	12900	10500	≥12000	176
Neodymium 42	0.267	7.4	42	13000	9500	≥11140	176
Neodymium 45	0.267	7.4	45	13500	11000	≥12000	176
Neodymium 48	0.267	7.4	48	14200	11600	≥12000	176
Neodymium 52	0.267	7.4	52	14800	10000	≥11000	140

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 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.

FAQ

Q: Do Neodymium Magnets Wear Out?

A: NdFeB magnets are sensitive to high temperatures and will lose their charge if exposed to these for a significant period. They have a comparatively low Curie temperature - approximately 80℃.without exposure to high temperatures, neodymium magnets will retain their charge for a very long time, losing as little as 5% every 100 years.

Q: What do neodymium magnets attract?

A: Neodymium magnets are attracted to ferromagnetic materials, which are materials that are capable of being magnetized and are attracted to magnets. Ferromagnetic materials include iron, steel, nickel, cobalt, and some alloys of these materials.

Q: Can You Grind Neodymium Magnets?

A: No. Neodymium is a hard, brittle substance with a texture like glass. It will chip and break if grinding is attempted.

Q: Can You Drill a Hole in a Neodymium Magnet?

A: No. Drilling will produce potentially hazardous dust and raise the magnet's temperature which could encourage demagnetisation. It will also remove the anticorrosive coating from the drilled area. Neodymium ring magnets are a handy solution to this as they already have a central hole for easy use.

Q: Do Neodymium Magnets Resist Corrosion?

A: Sintered magnets are vulnerable to corrosion, with graining along the metals especially prone to erosion. At its worst, corrosion can induce serious powdering or fragmentation of the entire magnet. To address this, most commercial neodymium magnets feature a protective outer coating for resistance to atmospheric wear. This is typically made from nickel, a copper-nickel alloy, polymer or lacquer.

Q: How Do You Store Neodymium Magnets?

A: As they are sensitive to both high temperatures and corrosion, neodymium magnets should be stored in a mild environment with low humidity. To minimise the accumulation of atmospheric particles on either the magnets themselves or their outer packaging, it is recommended to store them in closed, dust-free containers, within the original manufacturer's wrapping if possible.

Q: What are some interesting facts about neodymium magnets?

A: Neodymium magnets are also often referred to as super magnets. Compared to ferrite magnets, they are much more attractive. Some of them hold six hundred times their own weight. The energy density is given in kilojoules per cubic meter (kJ/m3).

Q: What are neodymium magnets attracted to?

A: Ferromagnetic materials
Neodymium magnets are attracted to ferromagnetic materials, which are materials that are capable of being magnetized and are attracted to magnets. Ferromagnetic materials include iron, steel, nickel, cobalt, and some alloys of these materials.

Q: What makes neodymium unique?

A: Because the ions themselves have unpaired electrons, their magnetic properties have proved fascinating to scientists and lucrative to entrepreneurs. An alloy of neodymium, iron and boron discovered in the 1980s is ferromagnetic, yielding permanent magnets over 1000 times stronger than anything ever seen before.

Q: What are 6 important facts about magnets?

A: Magnets Have Two Poles. Every magnet has a north pole and a south pole.
Magnets Produce A Force.
Not All Metals Are Magnetic.
There Are Different Types of Magnets.
The Earth Is A Large Magnet.
Compasses Rely on Earth.

Q: Do neodymium magnets break easily?

A: Neodymium magnets are brittle and will peel, chip, crack or shatter if allowed to slam together, even from just a few inches apart. Despite being made of metal and coated with a shiny nickel-plating, they are not as hard as steel. Shattering magnets can send small sharp metal pieces into the air at great speeds.

Q: How is neodymium used in everyday life?

A: In the field of information technology, neodymium magnets are particularly used in hard disc drives, mobile phones, video and audio systems of television [1]. Neodymium magnets are also commonly used in magnetic separators, filters, ionizers, in production of on–off buttons, safety sector and security systems.

Q: How to make neodymium magnets stronger?

A: Heating and Cooling. Thermal treatment is another technique used to restore the magnetic strength of weakened magnets. Heating a weak magnet to a high temperature and then rapidly cooling it can help realign its magnetic domains and enhance its magnetic properties.

Q: What is the most common neodymium magnet?

A: The most common grades of Neodymium magnets are N35, N38, N40, N42, N45, N48, N50, N52, and N55. For Samarium Cobalt (SmCo) Magnets, the BHmax will range from 16 MGOe to 32 MGOe. Again, like neodymium magnets, the higher the number, the stronger the magnet.

Q: What is the difference between a magnet and a neodymium magnet?

A: In terms of raw magnetic strength, neodymium magnets often outshine other types. Not only are they more potent, but they are also more compact, offering superior performance in a smaller package—a key advantage in many modern applications.

Q: What is the difference between a neodymium magnet and a regular magnet?

A: First of all, compared with ordinary ferrite magnets, NdFeB strong magnets have a stronger magnetic force. Neodymium magnets are currently the strongest magnets available on the market. They are many times stronger than ordinary magnets in terms of magnetic force.

Q: Can we use normal magnet instead of neodymium magnet?

A: Neodymium and ferrite magnets are significantly stronger than nickel-iron magnets. This is because the nickel-iron alloys have a lower magnetic saturation point, which means they cannot be magnetized to the same strength as neodymium and ferrite magnets.

Q: What's the price of Neodymium Magnets?

A: A Neodymium Magnet, even in its standard grade N35, is way more expensive than ferrite magnets. But other special alloys, like Samarium Cobalt or Alnico, can be even more expensive.

Q: What factors make Neodymium Magnets go up in price?

A: The main factor is the cost of the required raw materials. This price can change rapidly and considerably according to the current market situation. Energy costs also have an impact.
Neodymium Magnets contain rare-earth elements, such as neodymium, iron and boron. Despite representing just about 30% of the total weight of a standard neodymium magnet, these rare-earth materials account for a staggering 80-98% of the total cost of the raw materials.

Q: Can Neodymium Magnets be cut or drilled?

A: We advise against cutting or drilling neodymium magnets. Being made by extrusion and from powders, they are very brittle and prone to damage.the magnetization could be lost. After you cut a magnet, the polarity will invert where the cut is made. You can find Neodymium Magnets already produced with passing holes, threaded holes and in many different shapes.

We're professional neodymium magnets suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy discount neodymium magnets in stock here and get free sample from our factory. For price consultation, contact us.

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