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Neodymium Block Magnets

Why Choose Us?

01/

Expertise and Experience
20+ years of experience in the magnet industry, all our sales have 12+ years expertise and knowledge in various types of permanent magnets.

02/

Customization
Most of permanent magnets are customized according to drawing and requests.Be flexible in accommodating customer needs, whether it involves order adjustments, additional information, or other special requests.

03/

Diverse Product Range
Besides Neodymium magnet, we also provide Alnico magnet, Samarium Cobalt (SmCo) magnet, Ferrite(ceramic) magnet, Flexible magnet(Rubber magnet) and Magnetic Products.

04/

Quality Assurance
All magnets are under our strict quality control. We assure you what we offer is superior and quality products. From the beginning of the production to the inspection of finished goods, we pay attention to every detail and try our best to avoid any mistakes carefully.

05/

Effective Communication
Provide responsive and effective communication during the purchasing process, addressing any inquiries promptly and offering support to ensure a smooth transaction.

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Timely Delivery
15-30 days according to magnet order information.We promise timely delivery to ensure you receive the goods on time.

What Are Neodymium Block Magnets

Neodymium block magnets are made from neodymium (Nd), iron (Fe) and boron (B) and are the strongest magnets that currently exist. The energy product of neodymium block magnets is eight times stronger than that of anisotropic ferrite magnets and they have excellent mechanical strength. Since they rust easily, they are normally surface treated with nickel plating. They are used widely for industrial products and in daily items such as clothing and household products.

Benefits of Neodymium Block Magnets

High magnetic strength
The primary benefit of neodymium block magnets is their very high magnetic strength for their size. They are significantly more powerful than alternatives like ferrite or alnico magnets.
This compact magnetic strength allows miniaturized and efficient device designs. Higher lifting power also enables more robust and reliable attachments.

Temperature resistance
Neodymium block magnets have excellent heat/cold resistance and can operate without demagnetization at temperatures from -40°C to +120°C.
Some neodymium block magnet grades using dysprosium have even higher temperature ratings up to 230°C. This makes them suitable for demanding applications like high-speed motors and generators.

Corrosion resistance
Ndfeb magnets have a nickel-copper-nickel coating that provides corrosion protection. This coating improves their life expectancy in humid/saline conditions or outdoors.
Proper protective coating helps prevent chipping, peeling or crumbling of the magnets during use. It makes them suitable even for medical implants.

Higher safety
Neodymium block magnets have strong magnetic fields. So they can pose safety issues if not handled properly. Proper precautions are required during handling and use.
Their intrinsic properties make neodymium block magnets safer than older alternatives. Their coercivity and magnetic orientation ensure low stray fields. The protective coating also contains the magnetic flux.

Miniaturization
The compact size and high power of neodymium block magnets enable product miniaturization for portability. Small micro-magnets allow unprecedented magnetic applications.

Cost effectiveness
Neodymium block magnets are more economical than older magnet types for a given magnetic strength. Their excellent price-to-performance ratio makes them attractive for many applications.
Mass production of neodymium block magnets has resulted in lower costs and steady supply chains to match the rising demand over the years.
Neodymium block magnets offer the highest magnetic power in the most compact shape of any magnet available today. Their unique properties like high coercivity, heat resistance and corrosion resistance make them suitable for a very wide range of applications not practical with other magnets. Continued innovations and product designs using neodymium block magnets will enable smarter, smaller and more efficient products in the future.

Why Are Neodymium Block Magnets Getting More Expensive

Demand Boosted
The demand for neodymium block magnets has increased dramatically because of their growing use in electronic devices and wind power generators. This increased demand has driven the cost of these magnetic materials up considerably.
They are also used in a variety of other applications. They are employed in a variety of applications such as metal separators and filters, ionizers and the manufacture of buttons for on/off. Also, they are used in the safety sector and magnetic compasses. They also create magnetic tool belts covers and awnings for machines. They are also used to make jewelry clips and identification badges.
These magnets are made by combining iron, neodymium, and the element boron. They are available in two forms - bonded and sintered. Sintering is a process that produces stronger and more durable magnet, but it's also more expensive than the sintered version.

Unexpected Changes
Other factors could also be driving the cost of neodymium block magnetic materials. One of the main reasons is the cost of rare earth elements. They are extremely expensive because they are difficult to obtain in large quantities. In the end any event that causes disruptions to supply or changes in supply can cause prices to fluctuate.
neodymium block magnets are also increasingly being utilized in aerospace applications. They are utilized in air oxygen production systems, flight control systems, and other components of aircraft. Their outstanding magnetic properties are expected to fuel this demand.
Neodymium block magnets can also be used for numerous medical applications. They are able to orient iron particles within vascular stents, which help to prevent the formation of clots. They also help treat macula degeneration caused by age and retinitis pigmentosa.

Transport Costs
Neodymium iron boron (Neo, NdFeB or NIB) magnets are very robust and are available in many different grades. The strongest is N52 which is the magnet preferred by designers due to the fact that it has a high magnetic strength and is a compact size.
The neodymium business is driven by increasing demand for neodymium areas like wind energy and electric vehicles that require magnets made from neodymium to function correctly. This increased demand is the result of the ongoing effort to replace fossil-fuels with renewable energy sources.
As the demand for neodymium-based magnets grows, so too will the costs for the transportation of them. These magnetic materials are sensitive and should be packed and shipped carefully to avoid damage during transit. In addition, air shipments should be clearly labeled as containing magnetic materials according to FAA regulations. This adds cost to the manufacturer.
Besides these logistical issues in addition, the magnets themselves could be a safety risk when they are transported. neodymium block magnets attract one other from the distance of as much as 2 inches. If the magnets aren't adequately shielded or packaged with adequate padding, this attraction may cause injury to people or damage to property. Magnets can also lose their magnetic properties if exposed to high temperature.

Raw Materials
Neodymium block magnets may also cause damage to mechanical or electronic devices when they come in contact with them. They are able to magnetize watch edges and screwdriver edges at an even greater distance than other magnets. They also erase magnetic media like floppy disks and credit cards. They also generate sparks when they are chipped and come together, creating the risk of fire.
Another factor that affects the price of neodymium block magnets is the raw material cost. This is especially true for rare-earth minerals such as neodymium and ferrite, which are key components of NdFeB magnets.

Tips for Reinforcing Weak Neodymium Block Magnets

Restoring neodymium block magnetic strength of weakened neodymium block magnets requires a systematic approach and utilizing suitable methods. By following these tips and techniques, you can enhance the neodymium block magnetic power of your weakened neodymium block magnets and prolong their lifespan.

Cleaning the neodymium block magnet surface
It's essential to start with a clean surface for restoring neodymium block magnetic strength of a weak neodymium block magnet. Dust, debris, and oxidation can hinder the neodymium block magnet's performance. Begin by gently wiping the neodymium block magnet with a soft cloth or tissue to remove any surface dirt. For more stubborn stains or grime, use a mild detergent or soap solution. Ensure the neodymium block magnet is completely dry before proceeding to the next step.

Proper storage
Proper storage plays a vital role in maintaining the neodymium block magnetic strength of neodymium block magnets. Avoid exposing neodymium block magnets to extreme temperatures or strong neodymium block magnetic fields when not in use, as these factors can contribute to neodymium block magnetization loss. Store neodymium block magnets in a cool, dry place away from direct sunlight and electroneodymium block magnetic devices. Additionally, consider using neodymium block magnet keepers or storing neodymium block magnets in pairs with opposite poles facing each other to minimize neodymium block magnetic field leakage.

Neodymium block magnetization
One effective method for restoring weak neodymium block magnets is re-neodymium block magnetization. This process involves subjecting the neodymium block magnet to a strong external neodymium block magnetic field to realign its neodymium block magnetic domains. To re-neodymium block magnetize a weak neodymium block magnet, you can use a permanent neodymium block magnet or an electroneodymium block magnet. Hold the weakened neodymium block magnet close to the stronger neodymium block magnet and slowly move it along the length, ensuring the poles are properly aligned. Repeat this process several times to reinforce the neodymium block magnetic strength of the weak neodymium block magnet.

Heating and cooling
Thermal treatment is another technique used to restore the neodymium block magnetic strength of weakened neodymium block magnets. Heating a weak neodymium block magnet to a high temperature and then rapidly cooling it can help realign its neodymium block magnetic domains and enhance its neodymium block magnetic properties. However, caution must be exercised to avoid overheating the neodymium block magnet, as this can lead to irreversible damage.

Adding a backing material
For certain applications, adding a backing material to a weak neodymium block magnet can significantly help with restoring neodymium block magnetic strength and improving its neodymium block magnetic strength. By sandwiching the neodymium block magnet between two metal plates, such as iron or steel, the neodymium block magnetic flux lines are concentrated and reinforced. This technique, known as neodymium block magnetic backing, increases the neodymium block magnet's neodymium block magnetic field, resulting in enhanced performance. Ensure the backing material is in direct contact with the neodymium block magnet's surface for maximum effect.

Coating and encapsulation
Coating or encapsulating weak neodymium block magnets can provide an extra layer of protection and improve their neodymium block magnetic strength. The coating material, such as epoxy resin or polymer, not only shields the neodymium block magnet from external factors but also enhances its durability and neodymium block magnetism. The coating process involves carefully applying a thin layer of the chosen material over the neodymium block magnet's surface. Allow sufficient time for the coating to cure before using the neodymium block magnet.

Top 8 Uses for Neodymium Block Magnets

Neodymium block magnet is also called the NdFeB magnet. Because of its excellent properties, this magnet is applied to all aspects of our lives and is the most commonly used rare earth magnet.

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 block 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.

Why Is Neodymium Block Magnet so Magnetic

Neodymium Block Square Magnet 10x10x10mm

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.
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 NdFeB 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 block 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. So, 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, neodymium block 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.
Neodymium block magnets are often coated because of the material is not resistance to corrosion. If iron is exposed to moist air, it reacts with the oxygen to form rust.

What Are the Properties of a Neodymium Block Magnet

What Are the Properties of a Neodymium Block Magnet
The main characteristic of neodymium block magnets is how strong they are for their size. The magnetic field of a neodymium block magnet occurs when a magnetic field is applied to it and the atomic dipoles align, which is the magnetic hysteresis loop. When the magnetic field is removed, part of the alignment remains in the magnetized neodymium.
The grades of neodymium block magnets indicate their magnetic strength. The higher the grade number, the stronger the magnet's power. The numbers come from their properties expressed as mega gauss Oersteds or MGOe, which is the strongest point of its BH Curve.
The "N" grading scale begins at N30 and goes to N52, though N52 magnets are seldom used or only used in special cases. The "N" number may be followed by two letters, such as SH, which indicate the magnet's coercivity (Hc). The higher the Hc, the higher the temperature the neo magnet can endure before it loses its output.
The strongest of the neodymium block magnets was N52. It has been replaced by N55, which is 6% stronger than N52. N55 magnets are used in applications that require a strong magnet in limited space.

Our Factory

Everbeen Magnet is located in Xiamen, a coastal city on the southeast coast of China. It has ocean shipping and air shipment ports leading to all over the world, with a developed economy and convenient logistics.
Everbeen Magnet specializes in the development and processing of various permanent magnet materials such as NdFeB,Ferrite magnets and accessories, electronic components, and magnetic application devices. We have been deeply involved in the field of permanent magnet materials for more than 20 years. We can Adopt sophisticated process management and high-quality services to meet customer needs, accurately provide cost-effective products.

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FAQ

Q: What can a neodymium block magnet pick up?

A: Neodymium block 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: Does stacking neodymium block magnets make them stronger?

A: By adding one magnet on to the other, e.g. stacking, the stacked magnets will work as one bigger magnet and will exert a greater magnetic performance. As more magnets are stacked together, the strength will increase until the length of the stack is equal to the diameter.

Q: Can neodymium block magnets be turned on and off?

A: Can neodymium block magnets be turned on and off. Generally, no. The neodymium block magnets we provide are also called, "permanent magnets." The word "permanent" means they stay magnetized for a long time. They are always on.

Q: What are some interesting facts about neodymium block magnets?

A: Neodymium block 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: Which is stronger ceramic or neodymium block magnets?

A: Neodymium block magnets are much stronger than ceramic magnets, with a maximum energy product that can reach up to 52 MGOe. In comparison, ceramic magnets have a maximum energy product of up to about 5 MGOe. This means that a neodymium block magnet of the same size as a ferrite magnet is far stronger.

Q: How much Tesla is a neodymium block magnet?

A: 1.4 teslas. Dubbed the world's strongest permanent magnet, neodymium block magnets are magnets made of neodymium. To put their strength into perspective, they can produce magnetic fields with up to 1.4 teslas.

Q: How can you tell if a magnet is neodymium?

A: The proceeding 'N' refers to neodymium and some magnet grades also feature suffixed letters indicating the coercivity. Common grades include neodymium block magnets N52, N50, N48, N45, N42 and N35.

Q: What household products have neodymium magnets?

A: Magnetic door latches: Some cabinet doors and drawers use neodymium magnets to keep them closed. Magnetic jewelry clasps: Neodymium magnets can be found in certain types of jewelry clasps for easy fastening. Magnetic phone mounts: Car phone mounts often use neodymium magnets to hold smartphones securely in place.

Q: How to increase the power of a neodymium magnet?

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 do people use neodymium magnets for?

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

Q: What is so special about neodymium block magnets?

A: Neodymium block magnets are the strongest permanent magnets commercially available, anywhere in the world. They provide unparalleled levels of magnetism and resistance to demagnetisation when compared to ferrite, alnico and even samarium-cobalt magnets.

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

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

Q: How can you tell if a magnet is neodymium?

Q: Is neodymium the strongest magnet?

A: Neodymium block magnets are the most commonly used type of rare earth magnets. Rare earth magnets are made from rare earth elements found on the periodic table. neodymium block magnets are the strongest rare earth magnets and the strongest magnets in the world.

Q: Which is stronger rare earth magnets or neodymium?

A: Neodymium block magnets are a type of rare earth magnet. Rare earth magnets are a class of magnets that are made from rare earth elements and are known for their strong magnetic properties. neodymium block magnets, also known as NdFeB magnets or Neo magnets, are the most powerful type of permanent rare earth magnets.

Q: How long does neodymium block magnet last?

A: A permanent magnet if kept and used in optimum working conditions will keep its magnetism for years. It's estimated that neodymium block magnets only lose approximately 5% of their magnetism every 100 years.

Q: Why are neodymium block magnets so expensive?

A: One of the main reasons is the cost of rare earth elements. They are extremely expensive because they are difficult to obtain in large quantities. In the end any event that causes disruptions to supply or changes in supply can cause prices to fluctuate.

Q: Can neodymium block magnets pick up gold?

A: Neodymium block magnets will also attract other rare earth magnets, such as samarium-cobalt magnets and cerium-iron-cobalt magnets. neodymium block magnets will not attract non-ferromagnetic materials, such as copper, aluminum, gold, and silver.

Q: Is it safe to touch neodymium block magnets?

A: Some neodymium block magnets are strong enough to cause some serious damage to your fingers and/or hands if they get jammed between a strong magnet and metal or another magnet. You should also be cautious with your electronic devices.

Q: How to make neodymium block magnets stronger at home?

A: You can try rubbing a heavy-duty, strong magnet against the weaker one, using linear strokes in one direction for about 15 minutes. The stronger magnet may be able to realign the magnetic domains of the weaker magnet, therefore allowing it to regain some of its original strength.

As one of the most professional neodymium block magnets manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized neodymium block magnets at competitive price from our factory.

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