News -China Rare Earth Permanent Magnet Manufacturers

NdFeB Permanent Magnets without Coating 20170203

2017-02-03

NdFeB Permanent Magnets without Coating 20170203N35 Neodymium Block with Phosphating or Passivation Treatment for Generator ApplicationLook Uncoated N35 Magnets: Please provide me the quotation following types of magnets, as well lead time on these magnets.Material: permanent … View Details

N52 Neodymium Permanent Magnet Ring 20170119

2017-01-20

N52 Neodymium Permanent Magnet Ring 20170119N52 Magnets for Coupled Rodless CylinderLook Magnets Cylinder: We are developing Magnetic Cylinder. So we required type magnets. Kindly send your Quotation as soon possible. Grade: MagnetPlating: Nickel CoatingMagnetized … View Details

Custom AlNiCo Magnets 20170111

2017-01-11

Custom AlNiCo Magnets 20170111Cast Alnico5 Permanent with Conical Tips to Attract Small ParticlesLook for Alnico a Tip in the End:We need purchase permanent magnets shape of rod. Would it be possible provide us rod magnets? What would price?Here are specifications magnets:1. … View Details

Hopper Magnets 20170106

2017-01-06

Hopper Magnets 20170106Permanent Magnet Assembly with Neodymium Magnetic Rods Look for Magnets:Please offer below at earliest weight per piece.1. 8" X 2. 10" 3. 12" 12"Kindly quote Permanent Assembly Manufacturer China Rare Earth Limited:Please kindly … View Details

Unmagnetized Neodymium Magnets 20161229

2016-12-29

Un-magnetized Neodymium Magnets 20161229N35-N52 Block NdFeB Permanent in ConditionLook for Magnets:We are interested purchasing block permanent magnets from Nd-Fe-B powder un-magnetized condition. Are you able to deliver this kind of and case that do, when could they be ready dispatch? … View Details

Permanent Magnet for Air Compressor 20161224

2016-12-24

Permanent Magnet for Air Compressor 20161224How to Choose an Appropriate Magnetic CompressorWith the development of science and technology, air compressor is widely used in various industries as important powering equipment, including machinery, metallurgy, construction, … Permanent Magnet for Air Compressor 20161224How to Choose an Appropriate Permanent Magnetic Air CompressorWith the development of science and technology, air compressor is widely used in various industries as important powering equipment, including machinery, metallurgy, construction, electronics, chemical industry, food industry and so on. However, as its energy-extensive consumption, the new design permanent magnet air compressor has replaced the old “energy vampires” gradually and be well liked in the market with the advantages of energy-saving and high-efficiency, which saves cost for 20% to 40% directly for the users. But the only risk of the permanent magnetic air compressor is demagnetization. So what will contributes to demagnetization? Protection GradeThe protection grade of permanent magnet air compressor is divided into IP23 and IP54. Owing to the working temperature, IP23 can only be designed as opening mold. But the using environment is always poor with dust, moisture, salt spray and other corrosive gases, which leads to the short service life. What’s more, some dust that contains metal particles will enter into motor and effect the distribution of magnetic field, thereby lowing efficiency. But higher grade IP54 compressor can avoid these risks successfully. Heat-resistance GradeAs the motor of permanent magnetic air compressor is made of super strong neodymium magnets, the working temperature is especially important. If the temperature excesses the heat-resistance grade, the magnetic flux density will decrease greatly. Commonly, there are three grades of high temperature neodymium magnets, respectively, N series with 80° C, H series with 120° C, and SH with more than 150° C. Heat Radiation CapacitySince the special materials of the permanent magnet air compressor motor, it is necessary to ensure heat dissipation and cooling. Nowadays, there are mainly three cooling methods: air cooling, water cooling and oil cooling.Consequently, according to different working environments and compressing requirements, it is necessary to choose the most appropriate permanent magnetic air compressor with proper protection grade, correct neodymium magnets and favorable cooling method. View Details

Permanent Magnetic Assembly for Headphones 20161221

2016-12-21

Permanent Magnetic Assembly for Headphones 20161221Assembly: Neodymium Magnets + SS430 Stainless Steel Tray Black ABS PlasticLook N42 & N52 Assembly:Would you please quote me the following?1. / Magnet, NiCuNi finish2. Quote whole magnet assemblyAlso do have injection … Permanent Magnetic Assembly for Headphones 20161221Assembly: Neodymium Permanent Magnets + SS430 Stainless Steel Tray + Black ABS PlasticLook for N42 & N52 Neodymium Magnetic Assembly:Would you please quote me for the following?1. N52 / N42 Permanent Magnet, NiCuNi finish2. Quote for the whole magnet assemblyAlso do you have injection molding and stamping resources so we could just buy the entire assembly from you? Neodymium Magnet Manufacturer China Rare Earth Magnet Limited:We are an experienced NdFeB permanent magnets manufacturer.Quotation is in process. In addition, we can provide the whole magnetic assembly.Could you please kindly inform us the application of the small holes on stainless steel plate?Our engineers plan to drill the holes by laser. In this case, the holes will not be very smooth and will have some small burrs.Also, very slight deformation will occur if you bend the steel plate.May I know if the above situations are acceptable?Small Holes on Stainless Steel Plate:The small holes work as an air passage. Having a consistent size is fairly important. Burs are ok as long as they aren’t raised which could throw off were the magnet rests.The vertical dimension is very critical. Ideally we would like this dimension held within +- .05mm. Permanent Magnetic Assembly Manufacturer China Rare Earth Magnet Limited:Please kindly check the quote below.Neodymium Magnets + SS430 Stainless Steel Tray +Black ABS PlasticUnit price: USD**/setWe are a manufacturer with experience of more 20 years, so please do not worry. If samples do not turn out to be your satisfaction, we will follow your advice and make improvement. We are looking forward to your detailed drawings. Especially want to know why there are three lines around the half circles and what they are for. Details of the Magnetic Assembly:The circles you are referring to be radius. The parts have a 3 Dimensional curve which helps facilitate air flow in our application.These plastic parts are small however they are absolutely critical to the design. This subassembly is very critical to the way our headphone functions so we want to be very clear on what is expected in order to get the parts to function correctly.Permanent Magnets Manufacturer China Rare Earth Magnet Limited:I have sent the updated drawings to our engineer team, waiting for confirmation. In addition, you inquired two grades, N42 and N52 before, so which one you want for samples?Order of Samples for N52 Neodymium Magnets + Trays + Inserts:We would like N52 magnets. I hope this works out well. If it does we will also need magnets, trays and inserts for our two existing product lines. View Details

SmCo & NdFeB Magnets 20161220

2016-12-20

SmCo & NdFeB Magnets 20161220Samarium Cobalt Neodymium Permanent Manufacturer China Rare Earth Magnet LimitedLook for Magnets with a Specific Pull Force:We are very interested in your neodymium permanent magnets, 7N, Grade N35, N40 N45 and N52 pull force between 0.45 0.7kg (of … SmCo & NdFeB Magnets 20161220Samarium Cobalt & Neodymium Permanent Magnets Manufacturer China Rare Earth Magnet LimitedLook for NdFeB Magnets with a Specific Pull Force:We are very interested in your neodymium permanent magnets, 7N, Grade N35, N40 & N45 and N52 with a pull force between 0.45 and 0.7kg (of which is very important to us). I have attached an image with full details. Neodymium Magnet Manufacturer China Rare Earth Magnet Limited: As shown in your attached image, the material required for magnets is Samarium Cobalt, while all N35-N52 grades are neodymium material.The estimated pull force of this size N35 grade is 1.63lb.Samarium cobalt material will be weaker in strength than NdFeB permanent magnetic material.Please confirm which material is the one you need.The Strength of SmCo and NdFeB Magnets:You say Samarium cobalt material will be weaker – can you please let me know what strength it is?As I said in my previous emails the pull force is critical to us – we need pull force between 0.45 and 0.7kgPermanent Magnet Manufacturer China Rare Earth Magnet Limited:Sorry we are not able to estimate the pull force of SmCo magnets. It shall be tested in actual application.But after further communication with technician team, we simulated the pull force of the magnets with SmCo material.If you go for SmCo24 material, the pull force will be around 0.5-0.6kgs.Our suggestion is that you choose SmCo material.Please check the following quotation for SmCo30 magnets:Unit price: USD**/pcPlease confirm how many samples do you need for testing?Ask for Samples of SmCo and Neodymium Magnets:Am I correct in saying these are more expensive than the previous quotes on magnets, therefore are stronger magnets? Is it possible to get samples of both SmCo and NdFeB?SmCo30 & N35 permanent magnetsSmCo Magnets Manufacturer China Rare Earth Magnet Limited: Yes, the price of SmCo raw material is slightly higher than the price of neodymium raw material.And we can send you samples.How many samples do you think will be enough for testing? View Details

N48 Permanent Magnets 20161118

2016-11-18

N48 Permanent Magnets 20161118NdFeB Neodymium Manufacturer China Rare Earth Magnet LimitedInquiry for Magnets:We are searching Magnets. Our first trial sample order would be 200,000 pieces. Could you please provide us with your price? NdFeB Limited:Please kindly check the quote … N48 Permanent Magnets 20161118NdFeB Neodymium Magnets Manufacturer China Rare Earth Magnet LimitedInquiry for N48 Neodymium Magnets:We are searching for N48 Magnets. Our first trial sample order would be 200,000 pieces. Could you please provide us with your price? NdFeB Permanent Magnets Manufacturer China Rare Earth Magnet Limited:Please kindly check the quote below.Size as per your drawingGrade: N48Coating: NiCuNiMagnetized through thicknessQuantity: 200,000pcsUnit price: USD**/pcAsk for best quotation:The order of 200,000 pieces is only the first trial order and this order may increase. Awaiting your best quotation, Neodymium Permanent Magnet Manufacturer China Rare Earth Magnet Limited:We understand your concern about the price and sales and we are willing to try our best to support you.I attached our final price. Please kindly check it.To reduce the price by changing the strength or coating:Is there any possibility of reducing the price without reducing the strength? Instead of having a NiCuNi coating would it be possible to have no coating? N48 Magnets Manufacturer China Rare Earth Magnet Limited:We choose the lowest grade, N35 permanent magnet. Its strength is much lower than N48 NdFeB magnet. Please kindly check the quote in attachment.Would you consider a smaller size? This will also reduce the cost as well.Reducing cost without reducing force:Is there any way to reduce cost without reducing force?If we reduce the size, will the force reduce?Please understand that we are willing to work together to try and find the best solution to fit our budget but the force is the most important. Our product holds itself (keep together) by the magnets. The magnets hold the product together. This is why the force is extremely important. Neodymium NdFeB Magnets Manufacturer China Rare Earth Magnet Limited:We have offered our best price of N48 magnets. Coating does not play an important role in the price. Its proportion in price is very small. Magnet price mainly depends on material, grade and quantity.Because the force is very important, it'd better not to change the grade or reduce the size. View Details

Neodymium Magnetic Clasps for Necklaces 20161031

2016-10-31

Neodymium Magnetic Clasps for Necklaces 20161031Jewelry Permanent Magnets Manufacturer China Rare Earth Magnet LimitedLook Necklaces:I'm interested in buying permanent magnet clasps necklaces. The must be neodymium cylinder magnets with middle through hole. Can you … Neodymium Magnetic Clasps for Necklaces 20161031Jewelry Permanent Magnets Manufacturer China Rare Earth Magnet LimitedLook for Neodymium Magnetic Clasps for Necklaces:I'm interested in buying permanent magnet clasps for necklaces. The clasps must be neodymium cylinder magnets with middle through hole. Can you manufacture them? Which quantities do you offer? Neodymium Magnet Manufacturer China Rare Earth Magnet Limited:Could you please inform us how many pieces of the magnetic clasps you need?Ask Dimensions & Magnet Stock:We need a quotation for 100-500.The measurements are approximately based on some I found on the internet. But if you have something close to these dimensions it is also ok.Do you have them in stock or do you need to produce them? If you have them, how long would it take since we put the order to arrive?If you don't have them in stock, how long would it take to produce them?Magnetic Clasps Manufacturer China Rare Earth Magnet Limited:We have diameter 4.5 x5mm long magnetic clasps in stock.Please kindly check the quote as below.Unit price: USD***/pc Question about the Neodymium Permanent Magnets :Great you have in stock. I do have a couple of questions:1. What kind of coating has the magnet? I need it for jewelry. It will be the closure of a necklace that will be hanging some pendants. Therefore it can't cause allergies to the skin. Also I it is important that it doesn't get tarnished with the use/time and products like perfume, etc... Is that possible?2. How strong is the magnet?3. Given that you have them in stock, the 22 till 22 days of working days are still need it? Or can you dispatch them straight as soon as I pay?4. Which method of payment can I use?5. As I understood the price you gave me was including the shipment. What courier is it? Do you have an idea of the taxes or duties I have to pay here?6. Do you know how long takes the courier to deliver?Do you have a picture of the product? Permanent Magnet Manufacturer China Rare Earth Magnet Limited:Please kindly check it attached. Need Neodymium Magnet Samples:We would like to ask you one last special favor. Is it possible for you to send us one sample? We will pay what ever you ask for it, but we want to see the product and we want to be sure that product fits perfect in the wire. View Details

Custom Permanent Magnet 20161018

2016-10-20

Custom Permanent Magnet 20161018N52 NdFeB Neodymium Magnets Manufacturer China Rare Earth LimitedLook for N52 Magnets:I need the following permanent magnet custom made: Material: NdFeBGrade: N52Magnetization: through thicknessDimension: as per drawing (all four edges beveled … Custom Permanent Magnet 20161018N52 NdFeB Neodymium Magnets Manufacturer China Rare Earth Magnet LimitedLook for N52 Custom Neodymium Magnets:I need the following permanent magnet custom made: Material: Neodymium NdFeBGrade: N52Magnetization: through thicknessDimension: as per drawing (all four edges beveled at 45 degrees) with one #8 countersunk hole from center on diagonal. Countersunk hole is located on north face.N52 Custom Magnet Manufacturer China Rare Earth Magnet Limited:For the custom made permanent magnet, please provide a drawing with detailed dimensions.We will better understand your demands after receiving your drawing.The quotation will be provided accordingly.Specific Requiements of the Custom NdFeB Magnets :Please see attached for STL file.Pieces assembled/epoxied into a cube with all outer surfaces magnetized for north polarization. The center piece that the magnets are epoxied could be a cube of plastic.There also can be a plastic outer housing that helps hold the assembly together if need be or maybe a hard clear epoxy coating even better.How much would it be to deliver two assembled cubes to start with?Neodymium Permanent Magnet Manufacturer China Rare Earth Magnet Limited:We provide quotation of the custom made magnets in attachment.Please kindly be noted the price is for single magnet only, excluding assembling.Each Cube Would Use Six Trapezoids:The quote was supposed to be for two assembled cubes with all north faces.Each cube would use six trapezoids as shown in picture.Ask for the Largest Ring Magnets:What are the largest ring magnets that you carry in stock?I’m looking for something like 200mm diameter or maybe larger.NdFeB Permanent Magnets Manufacturer China Rare Earth Magnet Limited:As the magnets are customized according to the specifications provided by the customers, we don't have ready-made magnets in stock.We can customize D200mm ring magnets. It also depended on the material grade, axially thickness and demand quantity.Please advise the complete size, grade and quantity of the large ring magnets you need.We will check whether they can be customized or not. View Details

Coating technology of Sintered Neodymium Magnets 20161008

2016-10-09

Coating technology of Sintered Neodymium Magnets 20161008NdFeB Permanent Manufacturer China Rare Earth Magnet LimitedWith the excellent performance, sintered neodymium iron boron magnets are widely used in electronics, automobile, metallurgical industry, instrumentation, … Coating technology of Sintered Neodymium Magnets 20161008NdFeB Permanent Magnets Manufacturer China Rare Earth Magnet LimitedWith the excellent performance, the sintered neodymium iron boron magnets are widely used in the electronics, automobile, metallurgical industry, instrumentation, micro motors and other fields. And the demand will be accelerated in the future. However, it is necessary to make surface protection treatment for its poor corrosion resistance. Especially in recent years, the permanent motor magnets always be used under high temperature, high pressure or corrosive environment, the requirements of surface protection is much higher. There are several ways to protect the magnet surface (Plating & Coating of Sintered Neodymium Permanent Magnets ):Electroplating Electroplating is to make the metallic ion deoxidate to metal in the electroplating liquid by external electric current. The electroplating of sintered neodymium magnets is mainly to enhance the resistance of the magnets, and also improve its performance. Besides it can decorate the surface of the magnets. The requirements of electroplating equipment are not too high, and the technology is simple, so it is cheap and easy to mass production. Most of the metal plating on the surface of the coating can be used for neodymium iron boron protection, including Zn, Ni, Cu, CR, Sn, Au, Ag etc. Due to the porous structure and its chemical characteristic, the single-layer coating is often unable to meet higher requirement, therefore, the use of multilayer composite plating can provide more effective protection for surface of the NdFeB magnet generally. So the magnets are always electroplates zinc, Ni-Cu-Ni, Ni-Cu-Ni+Ag, Ni-Cu-Ni+Au, Ni-Cu-Ni+ electrophoresis epoxy coating.However, for the harsh environments, the surface of electroplate appears some problems such as cracking, peeling, caduceus result to low protection performance. Moreover, the electroplating process usually leads to environment problems. Chemical platingElectroless nickel plating technique refers to the metal salts and deoxidizer in redox reaction to make the metallic ion dexidate without the external electric current. Compared with the electroplating, electroless nickel plating is uniform, which is applied to complicated item, the magnet with deep holes, and so on. Meanwhile, with great hardness of electroless nickel plating, the resistance has greatly improved compared with electroplating.PVD: physical vapor deposition Japanese manufacturers used a technology between thermal evaporation and thermal spray to make aluminium deposits on the surface of NdFeB permanent magnets for protection, however we haven’t master this technology yet. The stability, density, corrosion resistance are all great of PVD plating. Meanwhile, it is environmental friendly and low cost. There are various of coatings of PVD, but the most common and economical is plating Al. Parylene coatingParylene is a new type coating technology, which belongs to chemical vapor deposition, but the sample does not require high temperatures during the deposition process. It is a polymer of p-xylene, which can be divided into N, C, D, HT and many other types.Parylene coating is uniform, transparent, without stress and additives, which does not damage the artifacts. Besides, it has excellent electrical insulation, protection, and good compatibility with the biological tissue. It is moisture-proof, mildew-proof, corrosion-proof and salt mist proof.Paint coatingThe paint is used to coat and cure in the surface to form a protective film. The way of paint coating are electrophoresis, spray, brush and so on. In addition to protect the surface of neodymium permanent magnets, the paint coating can also used to decorate and mark the NdFeB magnets . The paint coating can be divided into organic and inorganic. The organic coating has higher density and corrosion-proof ability, which will be applied widely. The paint coating can also be used with other coatings. In a word, among these ways, the permanent magnet manufacturers should choose the most appropriate way in different situation and also improve the coating technology continuously. View Details

Neodymium Magnetic Cup Assembly 20160928

2016-09-28

Neodymium Magnetic Cup Assembly 20160928Permanent Magnets & Manufacturer China Rare Earth Magnet LimitedMagnetic cup is the most commonly magnetic assembly, also be called pot magnets. The manufacturer Limited always put steel on bottom and around of permanent magnet like neodymium or … View Details

N35UH and N35SH Neodymium Arc Magnets 20160923

2016-09-22

N35UH and N35SH Neodymium Arc Magnets 20160923High Temperature Permanent Manufacturer China Rare Earth Magnet LimitedLook for High Magnet:We are looking grade (NdFeB) rare earth permanent magnets as per attached drawing.Please provide us quote.Product: neodymium arc Grade: & … View Details

Magnetic Picture Frame Holder 20160909

2016-09-09

Magnetic Picture Frame Holder 20160909Permanent Magnet Assembly Manufacturer China Rare Earth LimitedA magnetic picture frame holder is to hold the photos on wall, which convenience for putting pictures. Such assembly consists of some different assemblies, including two steel … View Details

Permanent Magnet Motor 20160827

2016-08-27

Permanent Magnet Motor 20160827Motor Magnets Manufacturer China Rare Earth LimitedMotor is an electromagnetic device which transfer the mechanical energy to electric based on magnetic field. And PM motor produce field by some permanent magnets. With advantages of compact structure, small … View Details

magnetic-clothing-buttons-20160816

2016-08-16

Magnetic Clothing Buttons 20160816Magnetic Assembly Manufacturer China Rare Earth Magnet LimitedChina Limited manufactures various types of magnetic buttons like D10*2mm with neodymium magnets material. Customers always require N pole red dot marker on PVC bag, S "-" … View Details

Permanent Magnetic Grate 20160802

2016-08-02

Permanent Magnetic Grate 20160802Magnetic Assembly with Neodymium Magnets and Stainless Steel TubesName: GrateManufacturer: China Rare Earth Magnet LimitedIntroduction to the product: 图片名：magnetic-grate-20160802.jpgAlt属性: magnetic grate neodymium permanent … View Details

Permanent Magnets Used in Gas 20160711

2016-07-11

Permanent Magnets Used in Gas 20160711Custom Neodymium Disc, Ring ShapeInquire Magnet Manufacturer China Rare Earth Limited:We are a consultant company and we developing new product for customer of us.Do you produce permanent magnets by drawings? We need magnet with high stability … View Details

N52 Block Magnets 20160701

2016-07-01

N52 Block Magnets 20160701Custom Neodymium Permanent in Grade N52Looking for Magnet Blocks:For one of our International R&D projects we need neodymium block magnets, magnetized through thickness. This is a trial order, if tests will be successful, are ready to place … View Details