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N40 D1.25"X0.125" Countersunk Neodymium Iron Boron Ring Magnet
US$1.00
100-99,999 Pieces
US$0.01
100,000+ Pieces
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableApplication
Electronic Products, Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor MagnetShape
RingModel NO.
N40Coating
Nickel/PhosphatingGrade
N-M-H-Sh-Uh-EhCertification
SGSColor
NickelMaterial
Sintered NdFeB Magnet/Neodymium MagnetTransport
by Air or by Ocean or by ExpressTolerance in Size
+/-0.05mmSize
CostomizedType
Permanent and StrongCatergory
SinteredProcess
Sintering-Machining-Coating-Magnetizing-PackingPerformance
Permanent, Strong, Rust-Proof, Anti-CorrosionApplication Area
Industry, Food Industry, Medical, Clothes Ect.Working Termprature
Max 150 Degree CelsiusTransport Package
Polybag/Inner Box/Carton or CustomizedSpecification
CustomizedTrademark
MGTOrigin
Ning BoHS Code
850511Production Capacity
100000ton/YearKey features
Customizable Size and Shape: Sizes customized from 1mm-100mm with vertical pull force depending on product dimensions.
Wide Grade Range: Available in N35-N52, 35M-50M, 33H-48H, 33SH-45SH, 30UH-38UH, and 28EH-35EH grades.
Multiple Coating Options: Offers Nickel, Zinc, Epoxy, and Chemical Nickel coatings with varying salt fog resistance.
Fast Sample Delivery: Samples ready for delivery in 3-5 days after payment confirmation, arriving in 3-5 workdays.
OEM and ODM Services: Supports custom manufacturing with dedicated R&D engineers and flexible production capabilities.
Strong Magnetic Performance: Neodymium magnets offer the strongest magnetic power, suitable for high-volume production.
Flexible Payment Terms: Accepts 30% deposit with 70% before shipment via TT, PayPal, or L/C.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2019-07-04 CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤5.77h CertifiedTerms of Payment: LC, T/T
AI-Powered supplier vetting
SummaryNingbo MGT Magnetism Co., Ltd. is a China-based limited company focused on NdFeB and other permanent magnets, with stated manufacturing, export, and customization activities. Evidence indicates more than 10 production lines, stated annual NdFeB productivity of 80,000 tons, export activity to Europe and North America, and self-operated import/export rights. The supplier states it can develop special-shaped magnets and offers multiple standard and customized forms. However, the dataset also contains inconsistencies in addresses, company age/industry-entry dates, and workforce figures. No management-system certification is reported, after-sales processes are not described, and customer evidence is limited to one recorded trade transaction. Financial information is excluded as required.
Supplier typeThe supplier is identified as a Chinese limited company specializing in NdFeB magnets, permanent magnets, and customized magnet products. Its stated business includes manufacturing, processing, and exporting, with a related production subsidiary mentioned; the records also show inconsistent head-office and factory locations within Zhejiang.
CertificationsThe supplier management-system certification field is explicitly recorded as “NIL.” This provides no evidence of recognized management-system certification.
R&D capabilityThe supplier states that it has managers and technicians capable of developing various special-shaped magnets, while the recorded R&D engineer experience is 2 years. This supports some product-development capability, but the evidence does not demonstrate advanced proprietary technology, patents, or a broader innovation program.
Production capacityProduction evidence includes a 150.0 m² manufacturing plant, more than 10 production lines, stated NdFeB productivity of 80,000 tons, complete production and processing equipment, and self-described strong production capacity. The records also state lead times within 15 working days in both off-peak and peak seasons, although the workforce and production figures are not fully consistent across slices.
Customization capabilityThe supplier explicitly offers customized magnets and states that it can develop various special-shaped magnets. Its product list includes block, arc, ring, disc, countersunk, and other NdFeB magnet forms, directly supporting broad form-factor customization.
Product Q&A
Q:What information is needed for a quotation?
A:
We need the grade of the magnet, size, and coating requirements before providing a quotation.
Q:What is the lead time for mass production?
A:
Bulk lead time is 7-15 days depending on the order quantity.
Q:How long does it take to receive samples?
A:
Samples are ready in 3-5 days after payment and file confirmation, with delivery taking 3-5 workdays.
Q:When can I get a price quote?
A:
We usually quote within 24 hours. Urgent inquiries can be prioritized via phone or email.
Q:How can I check the quality with a sample?
A:
Stock samples are free, but you must cover the express freight cost after price confirmation.
Send Inquiry
*To:
Ningbo MGT Magnetism Co., Ltd.
Ningbo MGT Magnetism Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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