What is the minimum order quantity (MOQ)?

The minimum order quantity is 1000 pieces.

What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

What is the lead time for production?

The average lead time is one month for both peak season and off-season.

Hot Selling Permanent Ring Magnet

Name: Hot Selling Permanent Ring Magnet
Brand: Hangzhou SDM Magnetics Co., Ltd.
SKU: 737061805

Zhejiang, ChinaHangzhou SDM Magnetics Co., Ltd.

US$0.10-100.00

100 Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Application

Motor Magnet, Generator

Shape

Block

Model NO.

SDMN

Coating

Nickel

Certification

ISO9001:2008, ISO/Ts16949:2009 and RoHS

Type

Permanent

Composite

Rare Earth Magnet

Transport Package

Sea Pallet / Air Carton / Express Packaging

Trademark

SDM

Origin

China (Mainland)

HS Code

8505111000

Production Capacity

200000 Piece/Pieces Per Month

Key features

Customized Shape and Size: Shape and size are fully customized per your specific requirements.

Wide Grade Range: Available in N35-N52 and high-temperature grades up to N28AH.

Multiple Coating Options: Offers Ni, Zn, Tin, Epoxy, Ni-Ag, Ni-Au, and Parylene coatings.

Strong Magnetic Power: Neodymium magnets offer the strongest magnetic power available today.

Versatile Applications: Suitable for motors, generators, sensors, speakers, and medical devices.

Certified Quality: Certified with ISO9001:2008, ISO/TS16949:2009, and RoHS standards.

OEM and ODM Service: Supports full customization from samples, designs, and minor adjustments.

Precise Dimensional Control: Achieved through advanced machining processes for high-volume production.

Company profile

Importers and ExportersYears of Export ExperiencePatents AwardedQuality Assurance

Hangzhou SDM Magnetics Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 12 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤11.33h

AI-Powered supplier vetting

SummaryThe supplier is a professional magnetic-materials and magnetic-device supplier engaged in production, sales, research and development, and international trade. It holds an ISO 9001:2015 certificate, operates five production lines, and has a 3,018.0 m² manufacturing plant. Quality controls include stated procedures, 100% finished-product inspection, and 21–30 quality-control staff in one record, although another record lists one quality-assurance and quality-control inspector. The supplier offers broad customization, 3D design, ODM, OEM, and recent new-product development. After-sales support includes debugging, maintenance, repair, training, and equipment installation, but no overseas warehouse, showroom, agent, branch, or offline trade-show participation is reported. Financial credibility cannot be assessed because the provided financial records identify years but contain no financial results. Customer evidence is limited to a statement that it provides OEM services for well-known brands.

Supplier typeThe supplier identifies itself as a professional technical supplier and conducts production and sales of magnetic steel sheets, magnetic materials, and magnetic devices, alongside R&D and sales activities. It also offers ODM and OEM services, indicating a manufacturer with technical-development and contract-manufacturing capabilities.

CertificationsAn ISO 9001:2015 certificate is explicitly reported for the supplier’s management system. This provides direct evidence of certification relevant to quality management.

R&D capabilityThe supplier reports professional technical R&D capability, 3D software design services, recent new-product development, and ODM services. However, it reports no available SDK, and total R&D-engineer experience is listed as one, so the breadth and depth of innovation resources are not fully established.

Production capacityThe supplier operates five production lines, has a 3,018.0 m² manufacturing plant, and lists sintering, wire cutting, automatic assembly, and magnetization equipment. It also reports 100% finished-product inspection with documented and uniformly followed inspection instructions, although quality-inspector staffing is inconsistent across records, with one record stating 21–30 quality-control staff and another stating one inspector.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. It also provides 3D software design, ODM services, and OEM services, demonstrating broad customization and design-to-production support.

Product Q&A

Q:What grades of neodymium magnets are available?

We offer a wide range of grades including N35-N52, N35M-N50M, N35H-N48H, N35SH-N45SH, N28UH-N42UH, N28EH-N40EH, and N28AH-N38AH.

Q:Can the shape and size be customized?

Yes, both the shape and size are fully customized according to your specific requirements.

Q:What coating options are available for the magnets?

We provide various coatings such as Nickel (Ni), Ni-Cu-Ni, Zinc (Cr3+), Tin, Epoxy, Ni-Ag, Ni-Au, Passivation, and Parylene.

Q:What are the main applications for these magnets?

They are suitable for motors, generators, sensors, speakers, earphones, musical instruments, magnetic therapy devices, magnetic chucks, bearings, couplings, and NdFeB pot magnets.

Q:What certifications do the products have?

Our products are certified with ISO9001:2008, ISO/TS16949:2009, and RoHS.