Wholesale Small Ring-Shaped Permanent NdFeB Magnet
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Product Highlights
- Wide Grade Range: Available in N35-N52, M, H, SH, UH, EH series for diverse needs.
- Customizable Sizes: Factory manufactures various sizes according to customer specifications.
- Multiple Coating Options: Offers Ni, Zn, Epoxy, Gold, Silver, and other surface treatments.
- Strong Magnetic Force: Features super strong Br and high intrinsic coercive force.
- Precise Tolerance: Manufactured with high precision for accurate performance.
- Custom Magnetization: Can be magnetized according to specific client requirements.
- ODM Service Available: Factory supports custom designs and specifications.
Product Attributes
- Customization
- Available
- Application
- Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet
- Shape
- Ring
- Model NO.
- N35-N52/ R017
- Coating
- Nickel
- Grade
- N38
- Type
- Permanent
- Composition
- NdFeB Magnet
- Size
- D5*D3*2, D5*D4*3, D4*D2*2.....
- Magnet Force
- 500-700times of Magnet Weight
- Transport Package
- Carton
- Specification
- from35-52
- Trademark
- eastar
- Origin
- China, Ningbo
- HS Code
- 8505111000
- Production Capacity
- 500ton/Year
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Product Description
Magnet N-( N35, N38, N40, N42, N45, N48, N50),
Magnet M-(35M, 38M, 40M, 42M, 45M, 48M),
Magnet H-(35H, 38H, 40H, 42H, 45H),
Magnet SH-(30SH, 33SH, 35SH, 38SH, 40SH, 42SH),
Magnet UH-( 28UH, 30UH, 33UH, 35UH, ),
Magnet EH-(28EH, 30EH, 30EH, 33EH, 35EH)
1) Application of NdFeB magnet: Toys, package, Printer, Switchboard, Phone, voice coil motors (VCM's) in hard disk drives, high performance motors, brushless DC motors, magnetic separation, magnetic resonance imaging, sensors, loudspeakers etc.
2) The coating of NdFeB magnets can be Zn, Ni, Ni-Cu-Ni, Epoxy, CR3+ZN, NI+AG, NI+AU.
3) Our factory can also manufacture various sizes of NdFeB magnet, according to the customer's specification
NdFeB Disc Magnet:
- N35-N52, N48M, N48H, N48SH, N38UH, N38EH...
- Max temperature: 80-230'C
- Dimension range: 1-280 mm
- Guaranteed quality
Product specifications:
1. NdFeB Permanent Magnets with different grades of: N35, N38, N40, N42, N45, N48, N50, N52(M, H, SH, UH, EH) etc.
2. Working temperature for NdFeB Permanent magnets: From 80 centigrades to 230 centigrades.
3. Can be magnetized according to the requirements of clients.
4. Coatings: Ni, Zn, epoxy, gold, silver, Cu and so on(as per the requirements).
5. NdFeB magnet has super strong magnetic force and high intrinsic coercive force.
6. With precise tolerance.
Application for NdFeB magnet:
Magnetic separator, Sensors, Wind generators, Vibration motors, DC motors, Servo motors, Linear motors, VCM, MRI, Loudspeakers, Linear actuators, drives, toys, bags, household appliances, microphone parts, transmission equipments...
Remarks:
1, HHMAG has years' experiences in magnets producing and we can Produce magnets acccording to your own specifications or designs.
2, We deliver goods in time and have excellent after-sale service.
3, Commited to customers with our best service and with the most that we
1. Magnet: Neodymium magnet
2. Characteristics:
Super strong Br resident induction.
Excellent demagnetization resistance capability.
3. Surface Treatment Method:
Black Nickel, Chroming, Copper, Epoxy, Gold, Nickel, Nickel+Epoxy, Nickel+Sn, Passivation, Zinc, phosphating
4. Applications of Neodymium Magnets:
AC Motors, DC Motors, servo motors, step motors
Computer rigid disc drives
Magnetic Separators
Magnetic resonance imaging
Speakers & earphones
Medical care machines
| 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 |


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
FAQ
- What grades of NdFeB magnets are available?
- We offer grades N35 to N52, including M, H, SH, UH, and EH series.
- Can the magnet size be customized?
- Yes, we manufacture various sizes according to customer specifications.
- What coating options are available?
- Coatings include Nickel, Zinc, Epoxy, Gold, Silver, and more.
- Do you offer ODM services?
- Yes, we provide ODM services and can produce magnets based on your designs.
- What are the payment terms?
- We accept LC and T/T payment terms.
- What is the lead time for production?
- Lead time is within 15 workdays for both peak and off-peak seasons.
- Can the magnets be magnetized to specific requirements?
- Yes, we can magnetize the magnets according to client requirements.
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