Construction magnets, Concrete magnets 20170927

Construction magnets, Concrete magnets 20170927

Construction magnets, which are also known as architectural precast magnets or concrete blinding magnets, in today's civil engineering construction are indispensable permanent magnetic products. Construction magnet applied to wooden or metal concrete blinding will be a very satisfactory solution. Construction magnet is composed by steel shell and magnet with pressure type handle, steel shell concentrates magnetic curve of the magnet to the bottom so construction magnets have very strong magnetic power.


Usually, people use construction magnets to fix concrete construction blinding, using building permanent magnets are very simple, after fixing building magnets on the concrete blinding, simply pressing down the handle of building magnet,  the magnet will tightly attract and catch up the entire concrete construction platform. By using the special magnet crowbar, the handle can be easily raised, and then the construction magnet can be removed.


The holding strength of construction  magnetic assembly is between 900 ~ 3100 KGS, construction permanent magnet  can also be customized in special size and holding strength.

Tags: construction magnets, concrete magnets, permanent magnet

Making permanent magnets by using 3D printer 20170919

Making permanent magnets by using 3D printer 20170919

Presently, the Austrians developed a method of using 3D printers to make permanent magnets. This approach allows using 3D printing technology to print magnets under the condition of precise control of magnetic field. At the same time, this method is especially suitable for magnetic sensors and other equipments.

So far, however, 3D printer is difficult to make true and accurate 3D printed magnets. In order to control the magnetic field of magnets, magnet must have complicated geometrical shape. This shape can be designed by using CAD software, but making actual 3D printing works is still quite difficult. The strength of the magnetic field is not the only factor. Special magnetic field is often needed, and the magnetic field lines arrange in a very specific way, for example, magnetic field in one direction is relatively constant but in another direction changing the intensity of magnetic field. The traditional way to produce this permanent magnet is using injection molding technology. Its technical principle is injecting materials into an inverted mold with similar shape of the object. However, to create the mold is a time-consuming process, and economic cost is too high.


As time goes on, 3D printing has replaced the traditional injection molding process in many applications, and 3D printed magnet is a convincing proof. Using Builder3D printer and a kind of quality polymer material containing magnetic particles can produce 3D printed magnets. The first stage of printing magnet object is to use digital 3D model to specify geometrical shaped print object. As with traditional 3D printing process is to print step layer-by-layer, but 3D printing materials used for printing is composed by about 90% magnetic material and 10% plastic material. However, print shape is just the beginning. Because 3D printing material is made by un-magnetized particles, so the magnetic object itself is not magnetic. Once 3D printing is completed, the printed object needs to be exposed to a strong external magnetic field. The magnetic field will convert 3D printing object to permanent magnets. This approach allows dealing with all kinds of magnetic materials, such as particularly strong NdFeB magnets. Now, using computers to create magnet design can be realized quickly and accurately in size from cm to dm., and the accuracy is 1 mm. Rapid and cost-effective new magnet 3D printing offers scientists the possibility of studying new products, including using different materials within a single magnet form a smooth transition between strong and weak magnet.

Tags: Making permanent magnets by using 3D printer, NdFeB magnets, magnetic materials

Ferrite and Neodymium Permanent Magnets for Inverter Air-conditioner 20170905

Ferrite and Neodymium Permanent Magnets for Inverter Air-conditioner 20170905

Inverter Air-conditioner-------- EPS and micro motors demanding more NdFeB neodymium magnets

Magnets that mainly used in compressors of inverter air-conditioners can be classified into ferrite permanent magnets and high-performance NdFeB magnets. Ferrite magnets are mostly used in mid-low end products, while neodymium magnets are commonly used in high-end inverter air-conditioners. Due to policy support of energy conservation and technology upgrading, ferrite magnets will gradually replaced with high-performance of NdFeB in area of inverter air-conditioners.


In 2016, 16049 air-conditioners were produced in 2016, with year-on-year growth of 2.55%, among which there were 3963 inverter ones, with year-on-year growth of 2.7%. Penetration rate of high-end inverter air-conditioners reached 40%. Each high-end air-conditioner consumes 0.28kg of high-performance neodymium rare earth permanent magnets. According to estimation, in 2016, there was 4438 tons of NdFeB magnets applied in inverter air-conditioners. Suppose that in 2017 and 2018, growth rate of domestic output of air-conditioners is 3% and penetration rate of high-end inverter air-conditioners is 2%, then in 2017 and 2018, consumption of neodymium permanent magnet will be 4800 tons and 5179 tons, with growth rate of 8.15% and 7.9%.

China Rare Earth Magnet Limited manufactures magnets for air-conditioner, if you have such demand, welcome to sending enquiry with drawing or actual sample for testing!

Tags: magnets for inverter air-conditioner, permanent magnet, ferrite magnets, neodymium magnets China magnet, magnet manufacturer

Application of high performance NdFeB magnets in automobile EPS field 20170829

Application of high performance NdFeB magnets in automobile EPS field 20170829

In traditional vehicles, NdFeB permanent magnets are mainly used for EPS steering system. Each EPS system need 0.15 kg finished  NdFeB magnets, amount to 0.25 kg blank. To calculate with global production of 9498 cars in 2016 and 50% of the EPS system permeability, NdFeB blank consumption in global EPS systems is at least 11800 tons.  Automobile steering system plays a key role on vehicle handling stability and safety. HPS steering system is drived by engine and hydraulic power. This system is mature in technology, but has too many parts, big in volume and heavy in weight. EPS steering system is completely drived by electronic controlled permanent magnet servo motor, which has multiple advantages like compact structure, high efficient and reliable, energy conservation, environmental protection and high safety. In the future, EPS will gradually replace HPS system has become the consensus of the market.


With the improvement of vehicle stability and safety requirements in high-end models, the permeability of EPS in global traditional cars gradually increased from 9% in 2010 to the current 50% or so. Permeability of EPS system in our domestic cars is 40-45% at present, while European and American market share is over 80%, and that of Japan even reached 90%. Therefore, there is still great increase space in the domestic EPS market. According to the following assumptions: 1) in 2017 and 2018 domestic automobile production year-on-year growth of 5% , the global car production year-on-year growth of 4%; 2) domestic EPS permeability increased by 4.5% per year, the global penetration of EPS increased by 3% per year, the expected usage of NdFeB rare earth  permanent magnets  in domestic EPS system with summary of year-on-year growth will be 15% or so in 2017 and 2018 , and the usage of NdFeB in global EPS system year-on-year growth is 10% or so.

Tags: NdFeB magnets, Automobile magnets, EPS magnets, permanent magnets, magnet manufacturer, China magnet

Cup Magnets for Tool Manufacturer 20170816

Cup Magnets for Tool Manufacturer 20170816

Sourcing  Permanent Magnets  for large tool manufacturer in Canada:
Cupped Magnet Sets

It is very strong, easy to install and comes as a three-piece set of neodymium countersunk magnet with cup, countersunk washer (for use as a door strike), and high-friction disc.
The cup magnet can be used as a door catch with a strike or as a magnetic base alone with high-friction film cover but without the strike. The countersunk screw hole in the center of the magnet makes it particularly easy to install or remove. The cups are about *** smaller than their nominal diameters so they fit snugly in a counter bored hole. For many shop uses, they can be attached directly to walls, beams or equipment without any counter bore.

Permanent  Magnetic Assembly  Manufacturer China Rare Earth Magnet Limited:
Please kindly check the quote of cup magnets below.


Tags: cup magnets, permanent magnets, China magnet, magnet manufacturer

Rare Earth Pr- Nd Price Surge - China gradually expands the influence of neodymium permanent magnets industry 20170831

Rare Earth Pr- Nd Price Surge - China gradually expands the influence of neodymium permanent magnets industry 20170831

In 2017, rare earth material price has been rising steadily with the further advancements of China's rare earth industry consolidation. Since the beginning of 2017, the cumulative growth of  neodymium   praseodymium oxide (iconic rare earth product) average price is 43%. And the upward trend of this material markedly accelerated since June, contributing more than half amount of increase in less than two months.


In 2010, a wave of price surge had happened in rare earth price. But after that, influenced by overcapacity and illegal production in industry, rare earth market price swing down. Since 2011, rare earth prices had retraced about 80% from the top level.

Seen from the industrial research of the downstream application of rare earth, for nearly half of the rare earth were used in permanent magnet industries. And the most important raw material of  permanent magnet  industry is iconic rare earth praseodymium neodymium magnet products.

At present, rare earth permanent magnets have been widely applied in the field of new energy vehicles and so on, in the first half of the year the production growth of rare earth permanent magnet enterprises is 10% to 30%. Rare earth permanent magnets are raw material of key components of missile weapon and other military equipments.

Tags: neodymium rare earth magnets, rare earth permanent magnets, China magnet

Neodymium Trapezoid Magnets 20170718

Neodymium Trapezoid Magnets 20170718

Besides regular neodymium magnets, such block, disc, arc, etc, China Rare Earth Magnets Limited also manufactures trapezoid magnets.

Before sending magnet price, we need the information, including grade like N35-N52 permanent magnet, magnetization direction, coating, quantity and so on. Also, an engineering drawing of the trapezoid magnets is necessary.


Commonly, clients need trapezoid magnets magnetized through the height, as below.

Sometimes, customers demand magnets magnetized through thickness.


Trapezoid permanent magnets have various applications and usually are used industry. Please contact magnets manufacturer China Rare Earth Magnet Limited freely if you have any inquiry or questions regarding custom neodymium magnets.

Tags: neodymium trapezoid magnets, permanent magnet, magnet manufacturer, China magnet