What is the minimum order quantity?

The minimum order quantity is 1000 pieces.

What are the lead times for production?

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

How do you ensure product quality?

We perform 100% inspection on finished products, including visual and function inspections, and maintain traceability of raw materials.

with a Center Hole Neodymium Special Block Magnets

Name: with a Center Hole Neodymium Special Block Magnets
Brand: Hangzhou SDM Magnetics Co., Ltd.
SKU: 728174405

Zhejiang, ChinaHangzhou SDM Magnetics Co., Ltd.

US$0.10-100.00

100 Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Application

Industrial Magnet, Motor Magnet

Shape

Block

Model NO.

SDMNB

Coating

Nickel

Certification

ISO9001:2008, ISO/Ts16949:2009 and RoHS

Transport Package

Sea Pallet / Air Carton / Express Packaging

Trademark

SDM

Origin

China (Mainland)

HS Code

8505111000

Production Capacity

100, 000 PCS/Month

Key features

Strongest Magnetic Power: Neodymium magnets offer the highest magnetic strength available today for high volume production.

Wide Grade Range: Available in grades N35 to N52, including M, H, SH, UH, EH, and AH variants for diverse needs.

Customized Shape and Size: Shape and size can be fully customized per your specific requirements with precise dimensional control.

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

Diverse Industrial Applications: Suitable for motors, generators, sensors, speakers, earphones, magnetic therapy, and bearings.

Comprehensive Certifications: Certified with ISO9001:2008, ISO/TS16949:2009, and RoHS compliance standards.

OEM and ODM Services: Full customization, minor customization, and flexible customization options available from samples or designs.

Strict Quality Inspection: 100% inspection including visual and function checks with traceable raw materials.

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: ≤9.95h

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 from N35 to N52, including specialized series like N35M-N50M, N35H-N48H, N35SH-N45SH, N28UH-N42UH, N28EH-N40EH, and N28AH-N38AH.

Q:Can the shape and size of the magnets be customized?

Yes, both shape and size are fully customized per your requirements, with precise dimensional control achieved during machining processes.

Q:What coating options do you provide?

We provide various coating options including Nickel, Ni-Cu-Ni, Zinc with Cr3+, Tin, Epoxy, Ni-Ag, Ni-Au, Passivation, and Parylene.

Q:What certifications do your products hold?

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

Q:Do you offer OEM and ODM services?

Yes, we offer OEM and ODM services including full customization, minor customization, and flexible customization from samples or designs.