Basic Info.
Application
Speaker Magnet, Industrial Magnet, Motor Magnet
Transport Package
by Air/ by Sea/ by Express
Product Description
Product DescriptionWHY CHOOSE US:Zhijiang magnetics is a company specialized in manufacturing Alnico Magnets (Alnico 2 to Alnico 9) and Samarium Cobalt Magnets (SmCo 5 and Sm2Co17), we are professional, with more than ten years experiences for manufacturer and export.
NdFeB Magnet DescriptionNeodymium Magnet is mainly made of Neodymium, Iron and Boron. Neodymium Magnet is offered in operation temperature 80ºC to 220ºC. A Sintered Neo Magnet has high remanence, high coercive force, and into various sizes and shapes. The magnet is suitable for being used in DC Motor, Brushless Motor, Speaker, MRI and others.
About our product| Product Name | Rare Earth Permanent neodymium Disc Magnets for Sensors Speakers |
| Material | Neodymium, Iron and Boron |
| Demension | Customized size |
| Coating | No or as your request |
| Shape | Various shapes- blocks, bars, discs, rings, horseshoes, cylinders, etc. |
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| Delivery time | 15-30 working days for prototype or batch accordingly |
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| Inner packaging | Put the magnet into the paper box separetely or as your request |
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| Outer packaging | Carton |
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In general, NdFeB magnets must be machined using diamond-grinding techniques. Machining this material removes a layer of protective coating, and re-coating for corrosion resistance may be necessary.
Magnetizing and HandlingRare Earth materials must be handled very carefully to avoid damage and injury. Isotropic bonded NdFeB materials can be magnetized in any direction, or with multiple poles. Special magnetizing fixtures are required in order to achieve multiple pole magnetization.
| Grade | Br | bHc | iHc | (BH)max | TW. | TC. | aBr | Grade | Br | bHc | iHc | (BH)max | TW. | TC. | aBr |
| [KGs] | [KOe] | [MGOe] | [C] | [C] | [%C] | [KGs] | [KOe] | [MGOe] | [C] | [C] | [%C] |
| [T] | [KA/m] | [KJ/m3] | [T] | [KA/m] | [KJ/m3] |
| N35 | 11.7-12.1 | 10.9 | 12 | 33-35 | 80 | 310 | -0.12 | N40H | 12.6-12.9 | 11.9 | 16 | 38-40 | 120 | 330 | -0.12 |
| 1.17-1.21 | 868 | 955 | 263-286 | 1.26-1.29 | 907 | 1353 | 303-318 |
| N38 | 12.2-12.6 | 11.4 | 12 | 36-38 | 80 | 310 | -0.12 | N42H | 13-13.3 | 11.9 | 16 | 40-42 | 120 | 330 | -0.12 |
| 1.22-1.26 | 907 | 955 | 286-310 | 1.3-1.33 | 947 | 1353 | 318-334 |
| N40 | 12.6-12.9 | 11.6 | 12 | 38-40 | 80 | 310 | -0.12 | N44H | 13.3-13.6 | 11.9 | 16 | 42-44 | 120 | 330 | -0.12 |
| 1.26-1.29 | 923 | 955 | 302-318 | 1.33-1.36 | 947 | 1247 | 334-350 |
| N42 | 13.0-13.3 | 11.6 | 12 | 40-42 | 80 | 310 | -0.12 | N35SH | 11.7-12.1 | 11.4 | 20 | 33-35 | 150 | 330 | -0.12 |
| 1.30-1.33 | 926 | 955 | 318-334 | 1.17-1.21 | 907 | 1592 | 263-279 |
| N45 | 13.4-13.7 | 11.6 | 12 | 43-45 | 80 | 310 | -0.12 | N38SH | 12.2-12.6 | 11.9 | 20 | 36-38 | 150 | 330 | -0.12 |
| 1.34-1.37 | 926 | 955 | 342-358 | 1.22-1.26 | 947 | 1592 | 287-303 |
| N48 | 13.6-14.2 | 11.6 | 12 | 45-48 | 80 | 310 | -0.12 | N40SH | 12.6-12.9 | 11.9 | 20 | 38-40 | 150 | 330 | -0.12 |
| 1.36-1.42 | 926 | 955 | 358-382 | 1.26-1.29 | 947 | 1592 | 303-318 |
| N50 | 14.1-14.5 | 11.4 | 11 | 48-50 | 80 | 310 | -0.12 | N42SH | 13.0-13.3 | 11.9 | 19 | 40-42 | 140 | 330 | -0.12 |
| 1.41-1.45 | 907 | 875 | 382-398 | 1.3-1.33 | 947 | 1512 | 318-334 |
| N35M | 11.7-12.1 | 11.5 | 14 | 33-35 | 100 | 320 | -0.12 | N28UH | 10.4-10.8 | 10.2 | 25 | 26-28 | 180 | 330 | -0.12 |
| 1.17-12.1 | 915 | 1114 | 263-279 | 1.04-1.08 | 812 | 1989 | 207-223 |
| N38M | 12.2-12.6 | 11.7 | 14 | 36-38 | 100 | 320 | -0.12 | N30UH | 10.8-11.2 | 10.6 | 25 | 28-30 | 180 | 330 | -0.12 |
| 1.22-1.26 | 931 | 1114 | 287-303 | 1.08-1.12 | 844 | 1989 | 223-239 |
| N40M | 12.6-12.9 | 11.9 | 14 | 38-40 | 100 | 320 | -0.12 | N33UH | 11.4-11.7 | 11 | 25 | 31-33 | 180 | 330 | -0.12 |
| 1.26-1.29 | 947 | 1114 | 303-318 | 1.14-1.17 | 876 | 1989 | 247-263 |
| N42M | 13.0-13.3 | 11.9 | 14 | 40-42 | 100 | 320 | -0.12 | N35UH | 11.7-12.1 | 11.4 | 25 | 33-35 | 180 | 330 | -0.12 |
| 1.30-1.33 | 947 | 1114 | 318-334 | 1.17-1.21 | 907 | 1989 | 263-279 |
| N45M | 13.3-13.7 | 12 | 14 | 42-45 | 100 | 320 | -0.12 | N28EH | 10.4-10.8 | 10.2 | 30 | 26-28 | 200 | 330 | -0.12 |
| 1.33-1.37 | 955 | 1114 | 334-358 | 1.04 | 812 | 2387 | 207-223 |
| N48M | 13.6-14.2 | 12 | 14 | 45-48 | 100 | 320 | -0.12 | N30EH | 10.8-11.2 | 10.6 | 30 | 28-30 | 200 | 330 | -0.12 |
| 1.36-1.42 | 955 | 1114 | 358-382 | 1.08-1.12 | 844 | 2387 | 223-239 |
| N35H | 11.7-12.1 | 11.4 | 17 | 33-35 | 120 | 330 | -0.12 | N33EH | 11.4-11.7 | 11 | 30 | 31-33 | 200 | 330 | -0.12 |
| 1.17-1.21 | 860 | 1353 | 263-279 | 1.14-1.17 | 876 | 2387 | 247-263 |
| N38H | 12.2-12.6 | 11.9 | 17 | 36-38 | 120 | 330 | -0.12 | N35EH | 11.7-12.1 | 11.4 | 30 | 33-35 | 200 | 330 | -0.12 |
| 1.22-1.26 | 907 | 1353 | 287-303 | 1.17-1.21 | 907 | 2387 | 263-279 |
As the magnets have strong attraction and we will use the spacer to apart the magnets each other in case people will be hurt when take it out. Then, they will be packed in a white box of pieces each, several boxes to a carton.Or according to your requirement to packing.
+By Air: If the goods will be shipped by air, all the magnetic should be degaussed and we will use Iron sheet to shield.
+By Sea: If the goods are will be shipped by sea, we will place a pallet on the bottom of cartons.
ToleranceGeneral tolerances:cutting surface+/-0.05- +/-0.2mm ground surface +/-0.01- +/-0.1mmSampleIn general, SmCo samples were around 15 days, Alnico samples were 25 days, and Ndfeb was the same as SmCo samples.
General product information:| Place of Origin: | Hangzhou Xiaoshan |
| Brand Name: | ZJMAG |
| Model Number: | |
| Certification: | ISO 9001: 2008 |
| Minimum Order Quantity: | 100PCS |
| Price: | |
| Packaging Details: | CARTONS |
| Delivery Time: | 15-30 working days for prototype or batch accordingly |
| Payment Terms: | T/T or L/C |
| Supply Ability: | 30 tons/month |
1.Density - 7.4-7.6 g/ cm3
2.Manufacturing process -sintering (most common), injection molding, and compression bonding.
3.Various shapes - blocks, bars, discs, rings, arc, segments, sectors, fan shape, cylinders, etc.
4.Prone to oxidation, plating is recommended ( Ni-CU-Ni, Zn,Au,Epoxy, etc)| Physical Properties of NdFeB Magnet |
| Density(g/cm3) | 7.3-7.5 |
| Curie Temperature (ºC) | 320 |
| Max. Operating Temperature (ºC) | 220 |
| Relative Permeability | 1.05 |
| Flexural Strength (N/nm2) | 250 |
| Compressive Strength (N/nm2) | 1100 |
| Tensile Strength (N/nm2) | 75 |
| Hardness (Hv) | 550-650 |
| Temperature Coefficient of Br (%/ºC) | -0.09~-0.12 |
| Temperature Coefficient of Hcj (%/ºC) | -0.50~-0.65 |
Sensors and switches
Linear actuators
Microphone assemblies
Magnetic separators
DC and servo motors
Speaker Parts
Printers
Magnetic hooks
Computer rigid disc drives
Beam controls
Intelligent toys
MRI/NMR
Competitive Advantages 1.The most powerful commercially produced magnets
2.Higher Maximum Energy Product ranging from 30MGOe to 52 MGOe
3.Very high strength and relatively low cost
4.Easier to machine compared to Alnico and SmCo Magnets
Company ProfileFounded in 2000, hangzhou zhijiang magnetics co., LTD. (formerly hangzhou xiaoshan zhijiang permanent magnet material co., LTD.) is devoted to the development and production of Alnico Magnets(Alnico2 to Alnico9)and sintered Samarium Cobalt Magnets(SmCo5 and Sm2Co17). The company has an annual production capacity of 1,000 tons of Alnico,and has become the second largest producer of Alnico in China, with annual production capacity of 300 tons of sintered samarium cobalt and 200 tons of ndfeb. Widely used in motor products, automotive sensors, magnetic transmission products. The company has advanced production equipment, reliable testing instruments, additional automatic testing equipment and advanced environmental protection equipment, implementing the whole process control of ERP and passing the ISO9001 and TS16949 system certification. Zhijiang magnetic industry will, as always, make full use of technological advantages, perfect product structure and insist on satisfying the needs of new and old customers with excellent quality and excellent service. Adhering to the business philosophy of "quality first, customer first, continuous innovation and continuous improvement", the company sincerely welcomes new and old customers to come to negotiate business.
Quality AssuranceCooperation Partner
Our ServicesDetailed sales process + perfect after-sales service.We can provide magnets of any size and almost any grade according to the specifications you provide. or fax your drawing to 0086 571 82871538 for more information. We'll get back to you within 2 to 3 working days.FAQ Q: What kind of company are you?
A: We are a factory but we also have an excellent team.
Q:How about the price and quality?
A:The price of the product depends on the size of the product; And we are a factory, we are professional, quality is worth assuring.
Q:How long is your delivery time?
A:Samarium cobalt (NdFeB) samples for about 15 days and products for 25 days. Alnico sample 25 days, product 45 days.
Q:How to contact with you?
A:Name:Joanna Wu
Tel:86(571)82836702
Fax:86(571)82871538
Address:
Zhudong Village Industrial Zone, Linpu Town, Xiaoshan District, Hangzhou 311215, China
Business Type:
Manufacturer/Factory
Business Range:
Auto, Motorcycle Parts & Accessories, Electrical & Electronics, Industrial Equipment & Components, Metallurgy, Mineral & Energy, Office Supplies, Toys
Management System Certification:
ISO 9001, IATF16949
Company Introduction:
Hangzhou ZhiJiang Magnetics Co., Ltd (ZJMAG) was founded in Nov. 2000. ZJMAG located in Hangzhou, China, is a high-tech company specialized in manufacturing
Cast AlNiCo Magnets (since the year 2000)
Samarium Cobalt Magnets (since the year 2009)
Neodymium magnets (since the year 2019)
Our process directors have decades of experience in technial, development and engineering, providing our customers perfect technical service of material selection as well as OEM designing accordingly.
Our company implements effective quality management through establishing complete quality management system, and pays attention to the construction of sales and service system and positively responds to the customers′ requirements. ZJMAG also provides ferrite magnets, rubber magnets and bonded plastic magnets, permanent magnetic servo motor and related magnetic products.
Our approach aims to systematically improve production capacity and management, and build a positive relationship with our clients from home and abroad.
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