N38 Nickel Plating NdFeB Ring Magnet for High Quality Speaker
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Product Attributes
- Customization
- Available
- Application
- Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
- Shape
- as Clients Requirments
- Model NO.
- N35-N52/ D037
- Coating
- as Clients Requirments Nickel/Zinc...
- Grade
- N35n52
- Type
- Permanent Magnet
- Composition
- NdFeB Magnet
- Size
- D50X15
- Processing Tolerance
- -0.05~ +0.05mm
- Work Temperature
- -30oc ~ +80oc
- Transport Package
- Carton
- Specification
- from35-52
- Trademark
- eastar
- Origin
- China, Ningbo
- HS Code
- 8505111000
- Production Capacity
- 500ton/Year
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Product Description
1. Materials: Sintered NdFeB / Neodymium magnet
2. Magnet grade:N35,N38,N40....N52, H, SH, UH, EHseries for optional.
3.Surface treatment: Ni, Ni + Cu + Ni, Zn, epoxy, gold, etc.
4. Size: From diameter 1mm up to 80mm, thickness from 0.5mm up to 30mm.
5. Processing tolerance: +-0.05mm
Magnet Parameter data sheet:
| Parameter | unit | Standard Data |
| Curie Temperature(Tc) | ºC | 310-380 |
| Maximum Operating Temperature(Tw) | ºC | 80-200 |
| Hardness | Hv | 620 |
| Electrical Resistivity | Ω.CM | 1.8X10-4 ~2.0X10-4 |
| Density(D) | g/cm3 | 7.5~7.65 |
| Recoil Permeability | µ rec | 1.05 |
| Magnetization Field Strength(Hs) | KOe | > 30 |
| KA/m | > 2400 | |
| Bending Strength | Mpa | 295~345 |
| Temp. Coefficient of Br (aBr) | %/ºC | -0.11~ -0.12 |
| Temp Coefficient of Hcj (aHcj) | %/ºC | -0.5~ -0.7 |
Applications of neodymium magnets:
1) Servomotor, step motor, DC motor and linear motor
2) Loudspeaker, headphone, earphone and microphones
3) Holding system equipment
4) Medical facility
5) Sound device
6) Wind power
7) VCM, MRI
8) Mobile accessory
9) Research and development, as well as many other applications


Test Equipment & Workshop
• Demagnetization Curves & Outgoing Inspection Report for each shipment.

Standard Packaging
• Vacuum packaging for all Neodymium magnets and Neodymium magetic assemblies.
• Shielding box and wooden box to protect the Neodymium magnets during shipping.
Shipping Methods
• Contract price with FedEx, DHL, UPS and TNT to minimum your shipping cost.
• Experienced shipping forwarder for Ocean and Air shipments.

About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR233889". Items marked "" are certified.
Company Profile
We are specializing in various specification of sintered Neodymium Iron Boron(NdFeB) Magnet. We are providing different size and shape of magnet for DC motors, computers, smartphones, speakers, acoustic Systems, MRI, VCM, medical instruments and Wareable devices. Our magnet grade from N35, N38, ...Up to N50, N52. Includes H, SH, UH, EH series...Our experienced QC team are strickly follow ISO9001 standard which can ensure you high quality magnet as you need.
We can provide you magnet blocks, disks, rings, tiles, cylinders...Or customized design according to your special requirments. We owned our fine processing center including linear cutting, grinding, plating...Wich can ensure your special technique requirment.
We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers requirments and give idea solution" for the management and "zero defect, zero complaints" as the quality objective.
Welcome to contact us and develop together with us for a great future.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 17-4, 277 Shengyuan Road, Fenghua District, Ningbo City
-
Plant Area
- 6000 square meters
-
Number of Employees
- 123
-
Registered Capital
- 3,000,000 RMB
-
Terms of Payment
- LC, T/T
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR
-
Average Lead Time
- Peak Season Lead Time, within 15 workdays, Off Season Lead Time, within 15 workdays
-
Nearest Port
- Ningbo Port, Shanghai Port
Our Production Capability & Technical Expertise
-
Main Products
- Curved NdFeB Motor Magnets, Strong Rare Earth NdFeB arc Magnets, Custom Galvanized Curved Rare Earth Magnets, Black Permanent Magnet Arc NdFeB Magnets
-
Production Machines
- Machining Facility
-
ODM Service Available
- Yes
-
R&D Engineers
- 2 people
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2012-04-16
- Export Year
- 2007-09-20
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), Australia
-
Number of Foreign Trading Staff
- 6
-
Overseas Agent/Branch
- No
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