Zhejiang, China
Business Type:
Manufacturer/Factory, Trading Company
Registered Capital:
10000000 RMB
Management System Certification:
ISO 9001
Main Markets:
North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, ...
Average Lead Time:
Peak season lead time: within 15 workdays
Off season lead time: within 15 workdays
OEM/ODM Service
Sample Available

Loudspeaker Magnet, Motor Magnet, Rare Earth Magnet manufacturer / supplier in China, offering Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality, Wafer Ring Permanent Sintered Ferrite Magnet with High Quality, High Quality Permanent Cow Magnetic Material Component Cylinder Ferrite Magnet and so on.

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Supplier Homepage Products Neodymium Magnet Hole Magnets Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality
  • Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality
  • Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality

Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality

Min. Order / Reference FOB Price
1,000 Pieces US $0.01-20/ Piece
Port: Shanghai, China
Production Capacity: 1, 000, 000, 000sets/Year
Payment Terms: L/C, T/T, Western Union
Certification: RoHS, CE
Shape: Segment with Hole
Purification Method: Customized
Preparation Method: Customized
Application: Motor or Industrial Magnet
Product Type: Rare Earth Magnet

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Basic Info.

Model NO.
N30-52(H, SH, UH, EH, M, etc)
Composition
Neodymium
Coating
Nickel
Export Market
Global
Delivery
3-25days
Performance
Customized
Trademark
HJ
Transport Package
Carton
Specification
RoHS
Origin
China
HS Code
85051110
Composite: Neodymium, NdFeB
Model 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


1. Magnetic materials category
Magnetic 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.
2The feature of sintered NdFeB magnets
NdFeB permanent materials are based on the inter-metallic Nd2Fe14B which has a vital high BH and Hcj. The advantages of high energy density makes NdFeB permanent magnetic material widely used in the modern industry and electronic applications, which makes instruments, generators, magnetic separators etc smaller, lower weight, thinner.
The advantages of NdFeB are that the cost performance is very high and have good mechanical properties while the disadvantages are that the curie temperature are too low, temperature feature is not good. We have to change its chemical composition and do surface treatment to promote its characters and to achieve actual applications.
The process of sintered NdFeB magnets is powder metallurgy, the smelted alloy powders are pressed into mould in the magnetic fields, the compression moulding are sintered into densified products. We usually do thermal effect processing in order to promote the Hcj of the magnets.

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.Advantage
1) 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.
GradesN35-N52N35M-N50MN35H-N48HN35SH-N45SHN30UH-N40UHN30EH-N38EH
W T80°C/60°C100°C          120°C150°C180°C200°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 direction
Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality

3.Choose the coating you want.
Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality

4.Choose the product size you need.
Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality
5.Packaging&Shipping
1)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.
Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality

Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality

6.Payment
Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality


7.Frequently asked questions
1) 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 Profile
Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality

9.Grade Instructions
/ Sintered NdFeB Magnet
Grade              
 Residual Induction (Br)Coercive Force      (Hcb)Intrinsic Coercive Force (Hcj)Max Energy Product (BH)max Temp. Coefficient              TkMax Working Temp. Curie Temp.
TkGskA/mkOekA/mkOekJ/m³MGOe%/ºC(Br)%/ºC(Hcj)ºCºC
N351.17-1.2211.7-12.2≥868≥10.9≥955≥12263-28733-36-0.12-0.7080310
N381.22-1.2512.2-12.5≥899≥11.3≥955≥12287-31036-39-0.12-0.7080310
N401.25-1.2812.5-12.8≥907≥11.4≥955≥12302-32638-41-0.12-0.7080310
N421.28-1.3212.8-13.2≥915≥11.5≥955≥12318-34240-43-0.12-0.7080310
N451.32-1.3813.2-13.8≥923≥11.6≥955≥12342-36643-46-0.12-0.7080310
N481.38-1.4213.8-14.2≥923≥11.6≥955≥12366-39046-49-0.12-0.7080310
N501.40-1.4514.0-14.5≥796≥10.0≥876≥11382-40648-51-0.12-0.7060310
N521.43-1.4814.3-14.8≥796≥10.0≥876≥11398-42250-53-0.12-0.7060310
N35M1.17-1.2211.7-12.2≥868≥10.9≥1114≥14263-28733-36-0.12-0.70100310
N38M1.22-1.2512.2-12.5≥899≥11.3≥1114≥14287-31036-39-0.12-0.70100310
N40M1.25-1.2812.5-12.8≥923≥11.6≥1114≥14302-32638-41-0.12-0.70100310
N42M1.28-1.3212.8-13.2≥955≥12.0≥1114≥14318-34240-43-0.12-0.70100310
N45M1.32-1.3813.2-13.8≥995≥12.5≥1114≥14342-36643-46-0.12-0.70100310
N48M1.37-1.4313.7-14.3≥1027≥12.9≥1114≥14366-39046-49-0.12-0.70100310
N50M1.40-1.4514.0-14.5≥1033≥13≥1114≥14382-40648-51-0.12-0.70100310
N35H1.17-1.2211.7-12.2≥868≥10.9≥1353≥17263-28733-36-0.12-0.70120310
N38H1.22-1.2512.2-12.5≥899≥11.3≥1353≥17287-31036-39-0.12-0.70120310
N40H1.25-1.2812.5-12.8≥923≥11.6≥1353≥17302-32638-41-0.12-0.70120310
N42H1.28-1.3212.8-13.2≥955≥12.0≥1353≥17318-34240-43-0.12-0.70120310
N45H1.32-1.3613.2-13.6≥963≥12.1≥1353≥17342-36643-46-0.12-0.70120310
N48H1.37-1.4313.7-14.3≥995≥12.5≥1353≥17366-39046-49-0.12-0.70120310
N35SH1.17-1.2211.7-12.2≥876≥11.0≥1592≥20263-28733-36-0.11-0.65150320
N38SH1.22-1.2512.2-12.5≥907≥11.4≥1592≥20287-31036-39-0.11-0.65150320
N40SH1.25-1.2812.5-12.8≥939≥11.8≥1592≥20302-32638-41-0.11-0.65150320
N42SH1.28-1.3212.8-13.2≥987≥12.4≥1592≥20318-34240-43-0.11-0.65150320
N45SH1.32-1.3813.2-13.8≥1003≥12.6≥1592≥20342-36643-46-0.11-0.65150320
N28UH1.04-1.0810.4-10.8≥764≥9.6≥1990≥25207-23126-29-0.11-0.60180330
N30UH1.08-1.1310.8-11.3≥812≥10.2≥1990≥25223-24728-31-0.11-0.60180330
N33UH1.13-1.1711.3-11.7≥852≥10.7≥1990≥25247-27131-34-0.11-0.60180330
N35UH1.17-1.2211.7-12.2≥860≥10.8≥1990≥25263-28733-36-0.11-0.60180330
N38UH1.22-1.2512.2-12.5≥876≥11.0≥1990≥25287-31036-39-0.11-0.60180330
N40UH1.25-1.2812.5-12.8≥899≥11.3≥1990≥25302-32638-41-0.11-0.60180330
N42UH1.28-1.3212.8-13.2≥899≥11.3≥1990≥25318-34240-43-0.11-0.60180330
N28EH1.04-1.0810.4-10.8≥780≥9.8≥2388≥30207-23126-29-0.11-0.55200330
N30EH1.08-1.1310.8-11.3≥812≥10.2≥2388≥30223-24728-31-0.11-0.55200330
N33EH1.13-1.1711.3-11.7≥836≥10.5≥2388≥30247-27131-34-0.11-0.55200330
N35EH1.17-1.2211.7-12.2≥876≥11.0≥2388≥30263-28733-36-0.11-0.55200330
N38EH1.22-1.2512.2-12.5≥899≥11.3≥2388≥30287-31036-39-0.11-0.55200330
N40EH1.25-1.2812.5-12.8≥899≥11.3≥2388≥30302-32638-41-0.11-0.55200330
N28AH1.04-1.0810.4-10.8≥787≥9.9≥2624≥33207-23126-29-0.10-0.50230350
N30AH1.08-1.1310.8-11.3≥819≥10.3≥2624≥33223-24728-31-0.10-0.50230350
N33AH1.13-1.1711.3-11.7≥843≥10.6≥2624≥33247-27131-34-0.10-0.50230350
N35AH1.17-1.2211.7-12.2≥876≥11.0≥2624≥33263-28733-36-0.10-0.50230350
N38AH1.22-1.2512.2-12.5≥899≥11.3≥2624≥33287-31036-39-0.10-0.50230350
*.         
*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. 

 10.How to contact us

Welcome to order. Thank you.
Strong Permanent NdFeB Magnetic Segment Neodymium Magnet with Hole with High Quality
 

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