Basic Info.
Model NO.
N30-52(H, SH, UH, EH, M, etc)
Purification Method
Customized
Preparation Method
Customized
Application
Motor or Industrial Magnet
Product Type
Rare Earth Magnet
Product Description
Composite: Neodymium, NdFeBModel Number: N35-N52, 30H-48H, 30SH-45SH, 30UH-40UH, 28EH-35EH
Magnets coating: Zinc, Nickel, Epoxy, Nickel-copper-nickel, Gold
Magnetizing direction: Axial, Radial, Quadrupole, Octupole
Magnetic materials categoryMagnetic materials basically contain Ferrite and Alnico, Sm-Co and Nd-Fe-B.
The rare earth permanent-magnet material contains Sm-Co and Nd-Fe-B.
At present the products widely applied are Ferrites. The product is inexpensive, following is the Nd-Fe-B.
The temperature stability of Alnico and Sa-Co are better than the Nd-Fe-B. So in some pointer instrument, military supplies and luxury goods, Al-Ni-Co and Sm-Co materials are widely used.
Curie temperature of Ferrites is 465degree, Nd-Fe-B 's is 310degree, Alnico's is 800degree, Sm-Co 's is 700--800degree. Therefore, temperature stability of Nd-Fe-B is the worst. But the performance is highest, which are called "magnetism king", Currently manufacture craft of magnetic materials is sintered and binder. As the binder are added adhesive bonding, the magnetism performance will not be high, but the product precision is high.
1.Grade cover N35-N52, N30M-N50M, N30H-N48H, N30SH-N45SH, N28UH-N40UH, N28EH-N38EH.
2.Size and Shape:D3--D280mm(round)Cylindrical, Ring, Square, Holed Square, Watt, Arch, or Customized.
3.Coating: Nickel, Nickel copper nickel, Zinc, Golden, Black epoxy, Grey epoxy, Phosphating and so on.
4.Direction of magnetisation:Through the thickness or through the diameter.
a. Magnetization thickness B. Axial magnetization C. Symmetric magnetization D. Multipole magnetization E. Radial magnetization. Special requirements for custom magnetization
5.Application of NdFeB magnet: Toys, Package, Printer, Switchboard, Phone, Vcoil motors (VCM's) in hard disk drives, High performance(maglev, linear and rotary) motors, Bearings, Eddy-current brakes, Brushless DC motors, Magnetic separation, Magnetic resonance imaging, Sensors, Loudspeakers, Jewelry industry and etc.
6.Advantage1) Excellent temperature stability
2) Small size and light weight
3)Strong magnetism
4)Relatively high energies characterize
5) High performance-to-price ratio,widely used
Magnetic material is not standard product,so you can provide details information to us to make it.
1.Choose the product grade you need.| Grades | N35-N52 | N35M-N50M | N35H-N48H | N35SH-N45SH | N30UH-N40UH | N30EH-N38EH |
| W T | 80°C/60°C | 100°C | 120°C | 150°C | 180°C | 200°C |
- The grades like N48-N52 could meet your requirement on strong power
- Standard one like N35 or N38 is okay for your normal applications
- If you have requirement on the working temperature, please note it.
2.Magnetic direction3.Choose the coating you want.4.Choose the product size you need.5.Packaging&Shipping1)By Sea: 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. (Detailed package quantity should be made upon the real products)
2) By Air: If the goods will be shipped by air, all the magnetic should be degaussed and we will use Iron sheet to shield.
6.Payment7.Frequently asked questions1) What is the normal size of your product?
All magnets are custom made.
2) What information do I need to provide when I ask?
If you have any enquiries, please inform us of the following:
a.Size or drawing with tolerances.
b.Grade of material or magnetism.
c.magnetic direction
d.Surface coating (if necessary)
e.Quantity and delivery conditions.
3) How long will you give me an answer?
We'll get back to you in 24 hours.
4) What's the price?
We will try our best to satisfy you.
5) Can I have a sample?
Yes, we have stock in stock. We can help you get the sample as soon as possible.
6) How long will you deliver samples and bulk orders?
If we have stok, we can send it in 3 days. If we do not have stock, the production time of samples is 5-10 days and the time of bulk order is 15-25 days.
8.Our Factory Profile9.Grade Instructions| / Sintered NdFeB Magnet |
| Grade | | | | | | | |
| Residual Induction (Br) | Coercive Force (Hcb) | Intrinsic Coercive Force (Hcj) | Max Energy Product (BH)max | Temp. Coefficient Tk | Max Working Temp. | Curie Temp. |
|
| T | kGs | kA/m | kOe | kA/m | kOe | kJ/m³ | MGOe | %/ºC(Br) | %/ºC(Hcj) | ºC | ºC |
| N35 | 1.17-1.22 | 11.7-12.2 | ≥868 | ≥10.9 | ≥955 | ≥12 | 263-287 | 33-36 | -0.12 | -0.70 | 80 | 310 |
| N38 | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥955 | ≥12 | 287-310 | 36-39 | -0.12 | -0.70 | 80 | 310 |
| N40 | 1.25-1.28 | 12.5-12.8 | ≥907 | ≥11.4 | ≥955 | ≥12 | 302-326 | 38-41 | -0.12 | -0.70 | 80 | 310 |
| N42 | 1.28-1.32 | 12.8-13.2 | ≥915 | ≥11.5 | ≥955 | ≥12 | 318-342 | 40-43 | -0.12 | -0.70 | 80 | 310 |
| N45 | 1.32-1.38 | 13.2-13.8 | ≥923 | ≥11.6 | ≥955 | ≥12 | 342-366 | 43-46 | -0.12 | -0.70 | 80 | 310 |
| N48 | 1.38-1.42 | 13.8-14.2 | ≥923 | ≥11.6 | ≥955 | ≥12 | 366-390 | 46-49 | -0.12 | -0.70 | 80 | 310 |
| N50 | 1.40-1.45 | 14.0-14.5 | ≥796 | ≥10.0 | ≥876 | ≥11 | 382-406 | 48-51 | -0.12 | -0.70 | 60 | 310 |
| N52 | 1.43-1.48 | 14.3-14.8 | ≥796 | ≥10.0 | ≥876 | ≥11 | 398-422 | 50-53 | -0.12 | -0.70 | 60 | 310 |
| N35M | 1.17-1.22 | 11.7-12.2 | ≥868 | ≥10.9 | ≥1114 | ≥14 | 263-287 | 33-36 | -0.12 | -0.70 | 100 | 310 |
| N38M | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥1114 | ≥14 | 287-310 | 36-39 | -0.12 | -0.70 | 100 | 310 |
| N40M | 1.25-1.28 | 12.5-12.8 | ≥923 | ≥11.6 | ≥1114 | ≥14 | 302-326 | 38-41 | -0.12 | -0.70 | 100 | 310 |
| N42M | 1.28-1.32 | 12.8-13.2 | ≥955 | ≥12.0 | ≥1114 | ≥14 | 318-342 | 40-43 | -0.12 | -0.70 | 100 | 310 |
| N45M | 1.32-1.38 | 13.2-13.8 | ≥995 | ≥12.5 | ≥1114 | ≥14 | 342-366 | 43-46 | -0.12 | -0.70 | 100 | 310 |
| N48M | 1.37-1.43 | 13.7-14.3 | ≥1027 | ≥12.9 | ≥1114 | ≥14 | 366-390 | 46-49 | -0.12 | -0.70 | 100 | 310 |
| N50M | 1.40-1.45 | 14.0-14.5 | ≥1033 | ≥13 | ≥1114 | ≥14 | 382-406 | 48-51 | -0.12 | -0.70 | 100 | 310 |
| N35H | 1.17-1.22 | 11.7-12.2 | ≥868 | ≥10.9 | ≥1353 | ≥17 | 263-287 | 33-36 | -0.12 | -0.70 | 120 | 310 |
| N38H | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥1353 | ≥17 | 287-310 | 36-39 | -0.12 | -0.70 | 120 | 310 |
| N40H | 1.25-1.28 | 12.5-12.8 | ≥923 | ≥11.6 | ≥1353 | ≥17 | 302-326 | 38-41 | -0.12 | -0.70 | 120 | 310 |
| N42H | 1.28-1.32 | 12.8-13.2 | ≥955 | ≥12.0 | ≥1353 | ≥17 | 318-342 | 40-43 | -0.12 | -0.70 | 120 | 310 |
| N45H | 1.32-1.36 | 13.2-13.6 | ≥963 | ≥12.1 | ≥1353 | ≥17 | 342-366 | 43-46 | -0.12 | -0.70 | 120 | 310 |
| N48H | 1.37-1.43 | 13.7-14.3 | ≥995 | ≥12.5 | ≥1353 | ≥17 | 366-390 | 46-49 | -0.12 | -0.70 | 120 | 310 |
| N35SH | 1.17-1.22 | 11.7-12.2 | ≥876 | ≥11.0 | ≥1592 | ≥20 | 263-287 | 33-36 | -0.11 | -0.65 | 150 | 320 |
| N38SH | 1.22-1.25 | 12.2-12.5 | ≥907 | ≥11.4 | ≥1592 | ≥20 | 287-310 | 36-39 | -0.11 | -0.65 | 150 | 320 |
| N40SH | 1.25-1.28 | 12.5-12.8 | ≥939 | ≥11.8 | ≥1592 | ≥20 | 302-326 | 38-41 | -0.11 | -0.65 | 150 | 320 |
| N42SH | 1.28-1.32 | 12.8-13.2 | ≥987 | ≥12.4 | ≥1592 | ≥20 | 318-342 | 40-43 | -0.11 | -0.65 | 150 | 320 |
| N45SH | 1.32-1.38 | 13.2-13.8 | ≥1003 | ≥12.6 | ≥1592 | ≥20 | 342-366 | 43-46 | -0.11 | -0.65 | 150 | 320 |
| N28UH | 1.04-1.08 | 10.4-10.8 | ≥764 | ≥9.6 | ≥1990 | ≥25 | 207-231 | 26-29 | -0.11 | -0.60 | 180 | 330 |
| N30UH | 1.08-1.13 | 10.8-11.3 | ≥812 | ≥10.2 | ≥1990 | ≥25 | 223-247 | 28-31 | -0.11 | -0.60 | 180 | 330 |
| N33UH | 1.13-1.17 | 11.3-11.7 | ≥852 | ≥10.7 | ≥1990 | ≥25 | 247-271 | 31-34 | -0.11 | -0.60 | 180 | 330 |
| N35UH | 1.17-1.22 | 11.7-12.2 | ≥860 | ≥10.8 | ≥1990 | ≥25 | 263-287 | 33-36 | -0.11 | -0.60 | 180 | 330 |
| N38UH | 1.22-1.25 | 12.2-12.5 | ≥876 | ≥11.0 | ≥1990 | ≥25 | 287-310 | 36-39 | -0.11 | -0.60 | 180 | 330 |
| N40UH | 1.25-1.28 | 12.5-12.8 | ≥899 | ≥11.3 | ≥1990 | ≥25 | 302-326 | 38-41 | -0.11 | -0.60 | 180 | 330 |
| N42UH | 1.28-1.32 | 12.8-13.2 | ≥899 | ≥11.3 | ≥1990 | ≥25 | 318-342 | 40-43 | -0.11 | -0.60 | 180 | 330 |
| N28EH | 1.04-1.08 | 10.4-10.8 | ≥780 | ≥9.8 | ≥2388 | ≥30 | 207-231 | 26-29 | -0.11 | -0.55 | 200 | 330 |
| N30EH | 1.08-1.13 | 10.8-11.3 | ≥812 | ≥10.2 | ≥2388 | ≥30 | 223-247 | 28-31 | -0.11 | -0.55 | 200 | 330 |
| N33EH | 1.13-1.17 | 11.3-11.7 | ≥836 | ≥10.5 | ≥2388 | ≥30 | 247-271 | 31-34 | -0.11 | -0.55 | 200 | 330 |
| N35EH | 1.17-1.22 | 11.7-12.2 | ≥876 | ≥11.0 | ≥2388 | ≥30 | 263-287 | 33-36 | -0.11 | -0.55 | 200 | 330 |
| N38EH | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥2388 | ≥30 | 287-310 | 36-39 | -0.11 | -0.55 | 200 | 330 |
| N40EH | 1.25-1.28 | 12.5-12.8 | ≥899 | ≥11.3 | ≥2388 | ≥30 | 302-326 | 38-41 | -0.11 | -0.55 | 200 | 330 |
| N28AH | 1.04-1.08 | 10.4-10.8 | ≥787 | ≥9.9 | ≥2624 | ≥33 | 207-231 | 26-29 | -0.10 | -0.50 | 230 | 350 |
| N30AH | 1.08-1.13 | 10.8-11.3 | ≥819 | ≥10.3 | ≥2624 | ≥33 | 223-247 | 28-31 | -0.10 | -0.50 | 230 | 350 |
| N33AH | 1.13-1.17 | 11.3-11.7 | ≥843 | ≥10.6 | ≥2624 | ≥33 | 247-271 | 31-34 | -0.10 | -0.50 | 230 | 350 |
| N35AH | 1.17-1.22 | 11.7-12.2 | ≥876 | ≥11.0 | ≥2624 | ≥33 | 263-287 | 33-36 | -0.10 | -0.50 | 230 | 350 |
| N38AH | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥2624 | ≥33 | 287-310 | 36-39 | -0.10 | -0.50 | 230 | 350 |
| *. | | | | | | | | | |
| *The above-mentioned data of magnetic properties and physical properties are given at room temperature. | | | | | |
| *\. | |
| *The max working temperature of magnet is changeable due to length-diameter ratio, coating thickness and another environment factors. | |
Address:
No. 15, Street 158, Middle of Siming Road, Yinzhou, Ningbo, Zhejiang, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Consumer Electronics, Electrical & Electronics, Health & Medicine, Industrial Equipment & Components, Manufacturing & Processing Machinery, Toys
Management System Certification:
ISO 9001
Company Introduction:
Our company, Ningbo Hongji Magnetic Material Co., Ltd. is specialized in making, selling and serving all kinds of magnets, including NdFeB, SmCo, AlNiCo, Ferrite, Rubber Magnet, Magnetic apparatus, Magnetic assembly and all relative products. At the same time, we can manufacture various permanent magnets according to your drawing, and supply technical service in selecting material and application.
Our products are widely used in areas of industry, agriculture, defense, petrochemical, aerospace, navigation, computer science, biological engineering, medical & clinical, instruments and meters. Our products export to Europe, North American, Southeast Asian and other countries, and gained the superior reputation.
We are dedicated to satisfying customers by providing wide range of magnetic products and relative services. To offer most high quality service to either old or new customers both at home and abroad is our untiring pursuit.
It will be a great pleasure to receive your inquires against which we will sent you our best quotation.
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