custom magnet supplier in China

Strong Neodymium Magnets Factory

Factory for strong neodymium magnets

Welcome to our website. Someone asked us, what do we sell. Few years ago , our answer is  Osenc manufacturer ,and produce neodymium magnets for sale , the strongest magnets in the world. But today , we sell neodymium magnet and customer service.


What is customer service?

For example

Few years ago, one customer paid us 100 USD for the sample. And then, we ship it by express. But unluckly, the parcel was rejected by local customs. If the sample return to us takes 15 days. and then, ship to the customer again takes 5 days.  So it means that the customer need to wait 20 days to get the parcel.

Lots of manufacturer will let customs wait 20 days. But we are different.

Place sample order again and push worker and our partner to produce sample ASAP and ship by the fastest express. At last, we spent almost 200 USD for this sample and customer just waited 10 days to get the sample.

In our mind, that is customer service.  No need to explain more.

We are a highly qualified factory in the production of magnets, magnet solutions, magnet technology and magnet systems, a highly qualified technology company with the highest quality standards and customer service. Yes, for us , customer service as important as product. We are the Specialist in the production of strong magnets made of neodymium (NdFeB), and good at the custom magnet.

We offer solutions for companies over the world!

We have a large selection of neodymium magnets in all shapes, such as discs, cubes, cuboids, rings, cylinders, wedges, and other irregular shapes, and we also manufacture magnets for specific applications. We specialize in magnets, technologies and solutions.

Buy Magnets from Osenc- Manufacturers of Neodymium Magnets 

Osenc is the specialist for super strong magnets, Power magnets, super magnets from neodymium with good customer service. Maybe our magnets are not always in stock, available in large quantities and ready to ship! But we can produce them ASAP. Because our leading time is short. You can buy the desired super magnets cheap and are available in large quantities immediately! Our customers appreciate our experience in the production of magnets, office magnets and school magnets directly from our production and guaranteed at best prices.

  • Magnetic hooks / hook magnets
  • Magnetic cube / cube magnets
  • Eyelet magnets / magnet with eyelet
  • Block magnets / magnet cuboid
  • Ring magnets / magnetic rings
  • Disc magnets / round magnets
  • Self-adhesive magnets
  • Fishing Magnets / Bergemagnet
  • cone magnets
  • Ball magnets / magnetic balls
  • Magnets with bore and countersink

custom magnet supplier in China

Our wide range includes blanks and die cuts made of magnetic foils, production of printed and plain labels, printing on magnets and magnetic foil, cutting of magnetic strips, magnetic strips and magnetic boards. Our assortment includes a large selection of magnets in large numbers with various dimensions and shapes at reasonable prices and flexible payment options. Our B2B customers have the possibility to order as usual. Below you will find a small part of our product range.

  • Strong magnets, neodymium magnets , super magnets
  • Magnets for magnetic board
  • Fridge magnets, office magnets, organization magnets
  • School magnets, horseshoe magnet
  • Pot magnet with eyelet
  • Magnetic foil, magnetic tape, magnetic strips, magnetic tape, magnetic signs, magnetic labels
  • Magnetic strip, tool holder, knife holder, knife block magnetic

Neodymium magnets: the strongest in the world – Super magnets with high adhesion – Magnets from the manufacturer – Strong prices

Super magnets: buy from Osenc the strongest neodymium magnets as disc, cuboid, ring, cube, ball in different sizes, as self-adhesive sets. With us you will find strong magnets, permanent magnets, which have up to 50% more energy than conventional magnets, so-called super magnets. Our range includes a large selection of magnets of various sizes and shapes at reasonable prices. If you can not find your desired variety or size, we will be happy to make you an individual offer. Due to our large stock and daily production, we can supply you quickly and flexible.
We have over 860 different permanent magnets on offer. From small mini magnets – 1mm to strong super magnets of about 20cm, yes, it is 20cm, not 20mm. Most of the magnets are stocked and can be delivered on demand at short time. Furthermore, we present you permanent magnets made of different materials. But be notice: These big, ultra-strong neodymium magnets are dangerous. Yes, very dangerous. You should be very careful.

Neodymium Magnets – Real Super Magnets in the Magnet Shop: buy online and cheap from Osenc!

As a manufacturer and specialist for magnets, we can especially recommend neodymium magnets. In the field of permanent magnets, they are the strongest magnets in the world. Thanks to the high adhesive power, they are suitable for a wide variety of applications. Our extensive assortment includes, among others, block magnets, dice magnets, ring magnets, bar magnets and magnetic balls. In addition to the individual magnets in raw form, we also offer you practical and innovative magnet systems. The selection consists among other things of magnetic hook, eyelet magnets and carabiner magnets.

Magnets available in many shapes and sizes from Osenc

Buy cheap magnet magnets, neodymium magnets and permanent magnets in our company, super magnets made of neodymium at a great price with fast and reliable delivery. Osenc is your partner for all questions about magnets. Welcome to our world of magnets! So if next time someone ask  “where to buy rare earth magnets “, Osenc will be the best choice.

Advantages of our B2B Magnet website: B2B – Manufacturer Osenc

Our magnet team offers you an excellent service and comprehensive advice on specific issues, maximum load, colors and all other physical and chemical properties. Immediate processing of your inquiries and fast and secure deliveries is a matter of course for our customers. Use our fast shipping service, well packaged and within a few days our magnets will reach your destination.
We are a certified shop and carry the seal of Trusted Shops. We have successfully completed more than 100,000 orders, providing 24×7 customer service to our ever-expanding customer base. For more information visit us online: All items maybe are not in stock in large quantities with daily shipping. But our production is high efficiency. You will get your order in short time. Thousands of satisfied customers! Buy from a company with the highest quality standards and customer service with flexible and diverse payment options and conditions.

Permanent Magnets

What Magnet is Stronger than Neodymium?

Rare earth magnets are the strongest type of the permanent magnets manufactured and are integral to the high tech industry, especially in the clean energies, like the wind turbine generators and the electric vehicle motors. China extracts and it produces over 95% of the world’s rare earth minerals, moreover has cut its exports since the year 2010. In addition to the supply chain concerns, extraction process is extremely destroying the environment.

But which magnet is stronger than the neodymium magnet?

Recently, a lot of experimental work has been done on the Iron and Nitrogen in order to combine for manufacturing a much stronger iron nitride magnet. In the beginning, experiments produced only thin films or powders which were not appropriate and suitable for many applications. But, when the fabrication process was employed and it produced the magnet in the bulk form that can be used in a number of applications. Moreover fabrication process in very compatible with the existing mass-production techniques. Nitrogen and the iron inputs are comparatively low cost, hence enabling extremely cheap permanent magnets which exceed performance of the rare earth magnets.

Permanent Magnets

Osenc offer customer big neodymium magnet

Benefits and features of the iron nitride

  • Iron nitride permanent magnet does not need any rare earth inputs. It uses low cost and common nitrogen and the iron inputs.
  • Iron nitride permanent magnets are environment friendly.
  • Iron nitride permanent magnets are compatible with the mass production techniques.
  • This strongest iron nitride permanent magnet is used in many high tech applications that include electronics, wind turbines and electric motors.
  • The theoretical limit of the magnetic properties if iron nitride permanent magnet are more than the twice, maximum reported magnetic energy of the rare earth magnet.Osenc Made Such Big Size Magnet

The other two magnets which are considered stronger equally as neodymium magnets

  • Dysprosium has highest magnetic field strength than all other elements and it is added to the neodymium magnets for increasing their resistance towards corrosion and demagnetization. The neodymium magnets are quite prone to corrosion and as they are very hard, dysprosium makes them brittle.
  • The other stronger magnet is the Somarium Cobalt. As compared to the neodymium, SmCo provides you with the unique capabilities like higher energy density at the elevated temperatures. Somarium cobalt is now equally in line with neodymium magnets in terms of their usage in applications.

We have many devices currently that are in use today which employ use of the magnets. Headphones, earphones and speakers have the magnetic coils and magnets that convert the electrical signals into sound. Propellers and the fans also have magnets which converts the electrical energy into the mechanical energy and the vice versa. The power plant generators use magnets to drive the generators. Strip magnets are used by the freezers and the refrigerators as door seals to seal the inner atmosphere of the freezer and the refrigerator. Now, Somarium Cobalt and the Dysprosium are being used in many of the applications in place of the neodymium magnets.

large neodymium magnet

Where to Buy Large Magnets

Want to buy the large super neodymium magnets?That is hard to find a good supplier for that.

You should find it in China.  China suppliers have applied the outstanding quality, innovative magnetic design and advanced manufacturing to help their customer succeed. Lots of them ensure long-term reliability and quality with the vertically integrated approach. They will help you in solving the design challenges and also it identifies the best and the top quality materials for the target application. Most of them have expert capabilities enable the customers to meet their needs with their involvement in machining, assembling, designing and testing of the client’s products.

For thousands of years, the magnets were used only as compass needles and toys in China. But since the advent of the electronics, the magnets have found their application in many of the everyday objects. In the 20th century beginning, many unique advances were made in magnetic materials. Now, the magnets are used widely in the speakers, hard drives, turbines, electric motors, credit cards, cathode ray tubes, transformers and more. As we know, China is the world factory,  they produce and sell these products all over the world. So you should believe they have well experience in produce magnet. No matter how big you want, how special shape you want.

Large size magnet material is hard to find

Large size magnet does not every magnet factories can make it. The first factor is, you should know where to buy the big size material. If you ask some regular factories for the big size. They will reject or offer you a crazy price. Because they need to takes time to check with the material supplier.  That is a big work.  70mm material is an easy find. But 200mm ,will be very difficult.

large neodymium magnet

Want such a big magnet?  conatc us , Osenc can help you

Large size is hard to operate

When you find the material, operate it will be a problem. Because not all machine can handle it. Lots of regular magnet factories just can operate magnet whihc is smaller than 60mm. If over that, you should buy a new machine to do it.  Even you have a machine to operate it , you still need an experienced worker to do it. That is important.

Magnetic Assemblies

China suppliers offers you their decades of technology and experience leadership along with industry’s most extensive investment within the engineering and tools in order to help you and your partners in achieving the much demanding application requirements.

They have a deep understanding of highly specialized requirements and needs of the magnetic performance in the medical applications. Osenc leverage the magnetic engineering knowledge for optimizing the quality and performance.

Magnetic Cores and Accessories

They offers the industry’s most diverse and advanced array of magnetic materials. Lots of experienced engineers help you in choosing the correct high-quality products and provide you with the best large neodymium magnets. Also they delivers you the cost-effective solutions that fit to your needs and specifically your budget.

So they will provides their customers with many interesting shapes of the big neodymium magnets with extreme accuracy and strength. Chinese strongest big neodymium magnet is the best product. Due to its epoxy classy coating, they are extremely beautiful big neodymium magnets. Because of their low cost and high strength, these large neodymium magnets have revolutionized the magnetic products. Big neodymium magnets are the strongest magnets.

Neodymium magnets are strong

Large neodymium magnets are the practical magnets, that creates the strong magnetic field and possess the best magnetic properties. Neodymium magnets are known as strong because they resist the demagnetization and possess the high saturation magnetization. It is actually the alloy of iron, boron and neodymium forming the crystalline structure.

Prominent advantages of the large super neodymium magnets

  • It has the higher remanence.
  • It has the higher coercivity.
  • It shows best magnetic properties at very high temperatures.
  • Its strength is unmatched.
  • Higher energy products are made from large neodymium magnets.

If you want to fine a China magnet supplier. We believe Osenc is the one who is efficiently and fully committed to optimal customer satisfaction through the proactive refinement of external and internal communications, fueling the continuous improvement and enhancement. From the owner down towards the organization’s team and workers and out to the suppliers, the Osenc’s vision is to become the worldwide leader of the magnetic industry and it is successfully continuing it’s journey towards the destination of success.

Want to buy big size neodymium magnet?

Welcome, contact us.

Where to Buy Neodymium Magnet

Where to Buy Neodymium Magnet?

If you are looking for the strongest Neodymium magnets and are worried, then you are at the right place. Yes! Now Osenc will provide you with the original and the strongest neodymium magnets.

A neodymium magnet is also called as NIB, Neo magnet or NdFeB Magnet. It is the permanent magnet which is made from the alloy of neodymium, boron and iron to form the crystalline tetragonal Nd2Fe14B and is most widely used kind of rare earth magnet. In 1982, it was developed independently by the Sumitomo Special Metals and General Motors. Strongest type of the permanent magnets that are commercially available are the neodymium magnets.

Due to the different manufacturing processes, neodymium magnets are divided into the two sub-categories:

  • Bonded NdFeB magnets
  • Sintered NdFeB magnets

In modern products they have replaced other magnets in many of the applications which require permanent strong magnets like motors in the cordless tools, magnetic fasteners and hard disk drives.

Osenc offers the best and the strongest neodymium magnets of the Grade N50, N52, N42, N45 N36 and N35. These are most popular and the strong Rare Earth Magnets in the market. Osenc support the customized magnets and accepts Wholesale, Retail and the Bulk Magnets for sale. Due to its status as being the rare earth group and most popular, t can be made in made interesting shapes such as Stick, Coil, Strip, Sheet, Bar, Ball and in other strange shapes.

Magnets have become important and an essential ingredient in present world, especially in manufacturing process of the modern world equipment. The magnets come in the different sizes, strength levels and shapes and this can be a bit confusing, when taking a decision about strength of the magnet required for your project. In the present world, out of the several magnets, neodymium has attained much attention because of its interesting and the unique properties.

Custom Magnets and Your Specification

Are you in need of the custom neodymium magnets? Don’t worry then. Osenc is here. Osenc possess the ability in offering its customers the custom neodymium magnets. Osenc do its best in providing you with your desired shape of the magnet by saving your cost and time. All you have to do is to give them the sketch and Osenc will follow it.


Neodymium material is quite brittle and is prone to cracking and chipping, so by the conventional methods, neodymium does not machine well. Machining the magnets, if not controlled, can generate heat which can demagnetize the magnet. So they should not be machined.

Osenc has an experienced and an active team that carries out all the tasks efficiently. All are trained well in making of the neodymium magnets. Osenc is the experienced manufacturer of the neodymium magnets and offers the high quality products.

Neodymium magnets are prone to the differences in temperature and under high temperature, they can even lose their temperature. Osenc provides you with some specialized neodymium magnets that can perform under the extremely high environmental temperatures. The Osenc make the neodymium magnets that has impressed the industries.

China earth rare magnet

Where to Buy Earth Rare Magnets

Neodymium magnets are the strongest type of permanent magnets that are commercially available. China has the best manufacturer of the neodymium magnets providing the customers with the exact shapes they want. They produce the neodymium magnets with the finished glossy look. And the point is the quality is excellent, and the price is very nice.

If you want to buy earth rare magnet, we suggest you visit China supplier to get your desired products. The efficiency, accuracy, and quality are apparent in China neodymium magnet.

About earth rare magnet, that is an alloy of the three elements, NdFeB (Boron, Iron, Neodymium) when joined together, they create the strongest Neodymium Magnets. It is widely called as “Rare Earth Magnets”, “Neo Magnets”, “Neodymium Magnets” or the “Earth Magnets” by the people. Neodymium magnets are the popular magnets and also called as the rare earth group and these can be made in several shapes Coil, Sheet, Bar, Ball, Block, Strip and in other attractive customized shapes.

If you want to have the customized neodymium magnets, then please visit China supplier. They have the ability to manufacture the customized neodymium magnets according to the requirements of customers. They consume the lesser money and time of yours and deliver the high end product having the best quality.

Benefits of the Chinese Neodymium Magnets

So far, the greatest force of magnetic products is the rare earth magnets. Their basic element is the neodymium, in addition, the iron and the boron are present in the alloy. Many people ask the same question that “why”. The basic fact is that China is actually the main supplier of the rare-earth elements specifically the Neodymium in the world market. Many neodymium manufacturers are present in China. Due to the result, many of the products are produced in China from these metals.

Features and applications

The Chinese neodymium possesses a lot of advantages and are listed below:

  • Maximum residual magnetism
  • Maximum magnetic energy
  • Maximum coercive force
  • Preservation of the working properties (only 1% of the energy is lost for 10 years)
  • Have the ability to produce products of any of the shapes (rings, segments, discs and bars)
  • Have the high corrosion resistance.


  • They are used in metal detectors.
  • They are used in generators and turbines.
  • Used in the medical equipment.
  • Used in the lifting, stepping, electric motors and compression.
  • They are used in clamps and clamps ( household tool holders and the heavy equipment’s magnetic clamps).

Coatings of the Neodymium Magnets

  • Zn Coating
  • NiCuNi nickel coating (the shiny metallic)
  • Grey/Black epoxy coating.

Neodymium magnets have replaced the ferrite and the alnico magnets in many of myriad applications in the modern technology, where the strong permanent magnets are required, due to their greater strength it allows the use of lighter, smaller magnets for the given application. Few examples are: the head actuators for the computer hard disks, mechanical e-cigarette firing switches, erase heads for the cheap cassette recorders, locks for the doors, magnetic bearings and the couplings, headphones and the loudspeakers, mobile phone speakers and auto focus actuators.

If you don’t have China supplier.  We believe Osenc Magnet can helps you in achieving desired results by providing you with the best quality neodymium magnetic products. Their customer service is fast, active and generates efficient communication towards their customers.




In every day of life and every sector, permanent magnets (likes Neodymium Magnet / Samarium Cobalt Magnets) or electromagnets are being used and it is important to be able to distinguish between the two magnets.




There are various types of magnetic products, ranging from those we use at home, for offices to sizable industrial magnets that can easily lift and move whole automobiles or other hefty objects made of metal just through their magnetic intensities. Thus, magnetic functions are different in each scenario.


In lieu of this, the article will focus on both the permanent magnets and electromagnets


Generally, a magnet is a material or metallic object that produces a magnetic field; it produces a force that pulls on other ferromagnetic materials such as Iron and attracts or repels others. All crystals in the core of magnetic materials depend on producing a North pole and a South pole.


Different or opposite poles attract one another while like or same poles repel. That is, North and South pole attract, while North and North or South and South repel. Magnetic products are found and useful in various places such as residences, offices, industries and even in imaginative crafting. The importance of magnets cannot be over emphasized.


Magnetic Intensities


The magnetic fields (called B or B-fields) are produced  by the moving electric currents or charges. These flows are invisible streams to ordinary eyes in which charged fragments circulation.

A magnetic field is a vector field that describes the magnetic influence of electric charges in relative motion and magnetized materials. Magnetic fields are observed in a wide range of size scales, from subatomic particles to galaxies. In everyday life, the effects of magnetic fields are often seen in permanent magnets, which pull on magnetic materials (such as iron) and attract or repel other magnets. Magnetic fields surround and are created by magnetized material and by moving electric charges (electric currents) such as those used in electromagnets. Magnetic fields exert forces on nearby moving electrical charges and torques on nearby magnets. In addition, a magnetic field that varies with location exerts a force on magnetic materials. Both the strength and direction of a magnetic field vary with location. As such, it is an example of a vector field.

A charged particle moving with constant speed produces an electric field as well as a magnetic field. This means, when a charged particle moves with constant speed without acceleration, it generates an electric current and magnetic field.


Permanent Magnet.


A permanent magnet is obtain from carbon-rich materials and attracts ferromagnetic materials, ferrimagnets or ferrites. Ferromagnets are objects made from materials that are magnetized and create their own persistent magnetic field. They are materials attracted to a magnet and these include the elements iron, nickel, cobalt, some alloys of rare-earth metals and some naturally occurring minerals such as lodestone.

Permanent magnets are utilized day to day in various areas as stated earlier, example of this is loudspeakers, electric bells, refrigerator magnet used to hold notes on the refrigerator door, relays amongst others.

In the case of permanent magnets this field remains over time without weakening


How Permanent Magnets allured


Heating the object higher than its Curie temperature, allowing it to cool in a magnetic field and hammering it as it cools. This is the most effective method and is similar to the industrial processes used to create permanent magnets.

Placing the item in an external magnetic field will result in the item retaining some of the magnetism on removal. Vibration has been shown to increase the effect. Ferrous materials aligned with the Earth’s magnetic field that are subject to vibration (e.g., frame of a conveyor) have been shown to acquire significant residual magnetism. Likewise, striking a steel nail held by fingers in a N-S direction with a hammer will temporarily magnetize the nail.


Stroking: An existing magnet is moved from one end of the item to the other repeatedly in the same direction (single touch method) or two magnets are moved outwards from the center of a third (double touch method)

The permanent magnets can continue to be totally magnetic without external force such as heat energy, other tough magnetic fields or strong forces. If it is subjected to these effects it can be fully demagnetized.


What are electromagnets


An electromagnet is a soft metal coil made into a magnet by the passage of electric current through the coil surrounding it. The more the amount of current that flows with the coil the stronger the magnetic force of the electromagnet. In other words, an electromagnet is made from a coil of wire that acts as a magnet when an electric current passes through it but stops being a magnet when the current stops. Often, the coil is wrapped around a core of “soft” ferromagnetic material such as mild steel, which greatly enhances the magnetic field produced by the coil. The coil in electromagnet is referred to as solenoid.


If the coil of wire is wrapped around a material with no special magnetic properties (e.g., cardboard), it will tend to generate a very weak field. However, if it is wrapped around a soft ferromagnetic material, such as an iron nail, then the net field produced can result in a several hundred- to thousand fold increase of field strength.


Electromagnets are used in all kinds of electric devices, including hard disk drives, speakers, motors, and generators, as well as in scrap yards to pick up heavy scrap metal. They’re even used in MRI machines, which utilize magnets to take photos of human inner parts.


Electromagnets can be switched on and off and It can do this because it is an electromagnet. When current flows through a wire, a magnetic field is produced around the wire and an electromagnet is formed. The magnetic field can be turned off again by switching off the current. Around every magnet there is an invisible magnetic field. Magnetic field. Further, unlike permanent magnet, the strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. The poles of an electromagnet can even be reversed by reversing the flow of electricity. An electromagnet works because an electric current produces a magnetic field.

custom N52 magnet

5 Basics Factors Of Neodymium Magnets

NdFeB is the most widely used magnetic material due to the highest specific energy density and low cost of production. This rare earth material is composed of the elements neodymium, iron and boron. Magnets of NdFeB are colloquially called neodymium magnets. They are very versatile because of their properties. NdFeB magnets are permanent magnets with a given direction of magnetization (anisotropic) and behave extremely stable against demagnetizing fields.

What Does Neodymium Magnets Use For:

  • Generators and electric motors
  • Magnet adhesive systems
  • Hall sensors (as encoder magnets)
  • filter systems

Limitations of Neodymium Magnets:

  • The operating temperature of magnets, depending on the grade, like the N grade, in most cases only 80 ° C. and the H grade, the maximum temperature is 230 ° C. But even you buy N grade, it does not mean the magnet must be supported the 80° C. If the thickness is thin, that will be lost magnetic in 75° C or lower.
  • Due to the high iron content of the neodymium magnets, these tend to corrosion. So it need coating material.
  • High sensitivity to impact or pressure load

Coatings of Neodymium Magnets:

The neodymium magnets are delivered with the following two coatings:

  • NiCuNi nickel coating (shiny metallic)
  • Zn Coating
  • Black/Grey epoxy coating

Usage notes of neodymium magnets:

Please read the warnings before using magnets. Neodymium magnets can be attached by gluing or snapping. If the neodymium magnet is attached to a magnetic object, you should make a previous test with a magnet between the magnet and the object, for example, fabric or polystyrene.

Neodymium magnets in different shapes and sizes

Neodymium magnets can be found in the form of discs, cuboids, cubes, rods, rings or balls and in different sizes. So you get the Neodymium magnets in cubic form, for example, in sizes between 1mm and 20mm. But lots of manufacturers do not like to produce the magnet smaller than 1mm, because that is hard to produce. Even the China magnet manufacturer. If you ask them, you would find that the 1mm magnet’s price is higher than the 2mm. And most of the time, they will increase the MOQ.

neodymium and ferrite magnets

What is the difference between neodymium and ferrite magnets?

The active study of magnetic materials began in the era of the development of electrical engineering when the relationship between the electric and magnetic fields was revealed. Now, no electrical product can do without them.

Nowadays, due to low cost, neodymium and ferrite magnets are most widely used. The first includes three main elements: iron, boron, and neodymium, which is indispensable in the aerospace and aviation industries, as an additive for the production of superalloys. In addition, the metal is widely used for the production of thermoelectric and special dielectric materials, fiber optic devices, as well as colored and painted glass for various purposes.

Both neodymium and ferrite magnet contains a large percentage of iron. In addition, the alloy may include several other elements, such as nickel, titanium, tungsten, chromium, cobalt, aluminum, barium, etc. Doping allows one to obtain the desired physical properties of the alloys.

Neodymium-based magnetic materials have a high value of residual induction and coercive force that keeps domains in an oriented state for a long time, even when exposed to external adverse factors. This is perhaps the main thing that distinguishes a neodymium magnet from the usual one.

The force of attraction of a conventional ferromagnet in ten years is reduced by more than half, while devices from neodymium lose no more than a couple of percents during the same time. Fantastic properties allow scientists and engineers to use materials from rare earth in the responsible nodes of electrical equipment, which requires the constancy of parameters over time. The durability of the alloy makes it possible to save not only on the cost of products but also on their maintenance.

What is the difference between neodymium magnets and ordinary ones? Due to the large residual induction, the neodymium alloy has a relatively large value of magnetization. The large force of attraction of products, with smaller sizes, mass, and relatively low cost, make this type of material preferable.

Neodymium magnet, the difference in characteristics of which compared to other brands of ferromagnets is so significant, can be found everywhere, both in everyday life and in production. The main areas of use: electrical and electronic products, fixing and technological parts, medical and special devices, household products, etc.

Most of the products presented on the website are made of neodymium alloy.

China Magnet

Advantages Of Chinese Neodymium Magnets

So far, the greatest force of magnetic products is rare earth magnets. And their basis element is neodymium, in addition, boron and iron are present in the alloy. At the same time, almost all neodymium magnets are Chinese for sale. Lots of people want to ask why. The fact is that it is China is the main supplier of rare-earth elements (in particular, neodymium) on the world market.And there lots of neodymium magnet manufacturer in China. As a result, most of the products from these metals are produced in China.

Features and application
Chinese neodymium has a lot of advantages, the main ones are:
* Maximum magnetic energy;
* Maximum coercive force;
* Maximum residual magnetism;
* Preservation of working properties (for 10 years only 1% of magnetic energy is lost);
* High corrosion resistance;
* The ability to manufacture products of any shape (discs, rings, segments, bars, etc.).

Lots of neodymium magnets from China is normal shape, like Cylindrical,Square, Disc. But as we know in the industry world, in the production we need the custom magnet.  They are very different. Different shape, different magnetic direction and different coating.

But no matter what different it is, they are used in:
* Clamps and clamps (from household tool holders to magnetic clamps of heavy equipment);
* Systems of cleaning, separation, and filtration;
* Metal detectors;
* Hard disk drives and erasing heads;
* Acoustic equipment;
* Turbines and generators;
* Compression, lifting, stepping, and electric motors;
* Medical equipment.
In addition, neodymium is used to produce all sorts of toys and sets for tricks. In everyday life, they are also often used for many different purposes.

Designation and classification
All neodymium magnets – from China, they, or from Russia, it does not matter – they must have an alphanumeric designation describing the main performance characteristics of the product. The letter thus denotes the temperature range in which the magnet retains its properties, the figure – the so-called magnetic energy or the “pull force”.
According to working temperatures, neodymium is divided into the following classes:
* N – up to 80 ° C;
* M – up to 100 ° С;
* H – up to 120 ° C;
* SH – up to 150 ° C;
* UH – up to 180 ° C;
* EH – up to 200 ° C.
Temperatures below zero do not affect the working properties of the neodymium.
When choosing a neodymium magnet from China, one should remember that the separation force depends not only on the physical characteristics but also on the dimensions of the product (more precisely, the area of the contacting surface). For example, a 25×20 magnet comes off easier than a 40×5 magnet, since it has a smaller area of contact with metal. However, due to the longer magnetic lines, its grip strength will be higher.

How Sintered Neodymium Magnets are Made

Exactly How Neodymium Magnets are Made

Exactly How Sintered Neodymium Magnets are Made
We talked about the steps associated with producing neodymium magnets, with some notes on what this suggests for real magnet customers.

1. Main Materials
The standard compound for the majority of Neodymium magnets is Nd2Fe14B. But in the real production, the chain reaction can be much more complex. Here is the generally made use of reaction :

57 Fe + 8 B + 10 Fe2O3 + 7.5 Nd2O3 + 52.5 Ca -> Nd15Fe77B8 + 52.5 CaO

Vacuum Cleaner Induction Heating System

What we need to pay attention is higher temperature level magnet grades, extra| components are included. When small percentages of Iron (Fe) are changed with Cobalt (Co), the power of magnet will enhance at raised temperature levels, however the intrinsic coercivity will be lowers. If tiny parts of Neodymium (Nd) are changed with Dysprosium (Dy), the intrinsic coercivity is enhanced, however the maximum power item (BHmax, an excellent step of a magnet’s power ) lowers. In normal, the magnet producer use both Co and Dy together. So the power and performance will be great.

2. Melting
In order to protect the product. In the production, the material need happens in a vacuum cleaner induction heating system. The system is heated up by electric swirl currents via it, the vacuum cleaner can make the pollutants out of the production.

3. Milling

In order to make the material to typical 3mm,magnet supplier will use the jet milling transforms the rhas magnetizationial right into a powder with a really tiny dimension.

4. Pressing

Pressing Actions
The powder need to be pressed together to create a shape that has magnetization orientation. In the production, referred to as die-upsetting, the powder is pressed with a die right into a solid body at raised temperature levels of concerning 725 ° C. The solid is after that positioned in a 2nd die, where it is pressed to a larger form that has to do with fifty percent it’s initial elevation. This straightens the favored direction of magnetization alongside the pressing orientation. For some forms, there are approaches that consist of a component that creates an electromagnetic field throughout pushing to align the particles.

5. Sintering
Sintering is a usual procedure in powder metallurgy. The main material is pressed at raised temperature levels (as high as 1080 ° C) below the material’s melting factor, till its particles comply with each various other.

6. Machining
The sintered magnets are reduced to the customer wanted form making use of a grinding procedure. Much less generally, complicated forms are made with electrical discharge machining (EDM). As a result of the high material price, material losses because of machining are maintained to a minimum. No reliable ways of reusing the waste have actually been created.

7. Coating
The specific magnets are electro coat with 3 material: nickel & copper & nickel. This is essential due to the fact that un-coated neodymium magnets are very easy to “rust”, and also will promptly miss their magnetic power in the daily witness.

8. Magnetization
Now, the magnets have a specific orientation
of magnetization, however, they are not magnetized. They are put in a mold(we also called it fixture) that will certainly show the magnet to an extremely electromagnetic field for a short moment. It’s generally a huge coil of cable around the magnet( s). The magnetizing devices make use of banks of capacitors as well as a truly massive voltage to obtain such big current for a split second.

9. Inspection
About the quality of the resulting magnets is the inspection. For a range of properties.
p measuring projector confirms the measurements. The thickness of the coating, in order to check it, will use x-ray fluorescence modern technology to check.

What all this suggests for customers of neodymium magnets

A magnet with the nickel plating scratched away, exposing the raw NdFeB magnet below
Neodymium magnets are created by powder metallurgical techniques. Their feature very closely looks like a ceramic, instead of a metal. They are not conveniently machined, so we do not suggest attempting to make them.
Neodymium magnets are extremely difficult and breakable. Regardless of the metal look of their nickel coating, they are not as strong as steel. If based on sharp effects, such as enabling them to knock right into each other, they can quickly break or damage. Treatment, as well as correct handling, are necessary}.
We do not suggest press-fitting neodymium magnets. Magnets are frequently glued into a pocket that is a little bigger than the magnet, instead of press-fitting.
We do not suggest making use of a threaded magnet. While it’s possible to reduce strings, they do not stand up well under torque.