How about the quality of the magnets?

To ensure the quality of the products, every production procedure is inspected strictly by the professional QC team from all aspects. Besides, the Trade Assurance order will protect your payment, and make sure that we deliver on time and manufacture quality products as required.

Will the magnetism be weaker after years of use?

Yes, magnets do weaken over time. If you store permanent magnets correctly, neodymium magnets will likely lose less than 1% of their flux density over 100 years. The magnetism decline is neglected, that's why we call it a Permanent Magnet.

High Coercivity OEM Custom Self-Adhesive Sintered NdFeB Magnet Foracoustic Device

Name: High Coercivity OEM Custom Self-Adhesive Sintered NdFeB Magnet Foracoustic Device
Brand: Ningbo Ketai Magnetic Material Co., Ltd.
SKU: 2150079092

Zhejiang, ChinaNingbo Ketai Magnetic Material Co., Ltd.

US$0.20-1.00

100 Pieces

Sample price:US$0.20/piece.Request sample

Product profile

Customization

Available

Application

Electronic Products, Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet

Shape

Irregular

Model NO.

NdFeB Magnet

Coating

Customized

Grade

N30-33ah

Product Name

NdFeB Magnet

Keywords

Neodymium Magnet

OEM & ODM Custom

Logo Custom

Material Composition

Neodymium-Iron-Boron (NdFeB)

Magnet Type

Sintered NdFeB Permanent Magnet

Surface Coating

Nickel (Ni-Cu-Ni), Zinc, Silver, Gold, Epoxy Resin

Max Operating Temperature

80°C to 230°C (Depending on Grade)

Transport Package

International Standards

Specification

Standard Specifications or Customized

Trademark

KETAI

Origin

Zhejiang, China

Production Capacity

500000pieces/Year

Key features

High Coercivity Performance: Delivers exceptional magnetic strength with high remanence and coercive force for demanding applications.

Customized Coating Options: Available in Nickel, Zinc, Gold, Epoxy Resin, and other coatings for superior corrosion resistance.

Versatile Custom Shapes: Easily formed into irregular shapes, discs, rings, and custom geometries to fit specific designs.

OEM & ODM Acceptance: Full customization services available including logo, design, and material composition adjustments.

Superior Magnetic Energy: Highest magnetic energy product among permanent magnet materials for compact and efficient designs.

Strict Quality Control: 100% inspection of finished products with professional QC team ensuring dimensional accuracy.

Fast Response Time: Receive replies within 15 minutes during work hours (08:00-18:00 UTC-8) for inquiries.

Company profile

Ningbo Ketai Magnetic Material Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 14 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤24h

AI-Powered supplier vetting

SummaryNingbo Ketai Magnetic Material Co., Ltd. is a combined supplier whose primary product is magnets and whose stated business scope includes magnetic materials, plastics, rubber products, hardware, and electronic components. It offers customization and ODM services, maintains inventory capability, and reports quality assurance with raw-material traceability. However, it reported no new products during the past year, no SDK, no OEM service for popular brands, and no overseas agents, branches, warehouses, showrooms, or offline trade-show participation. Manufacturing capacity has a significant documentation weakness because there is no valid contract with the factory’s related subcontractors. Corrective-action and complaint-handling procedures are undocumented, while supplier assessment procedures and an approved-supplier list are also absent. An ISO 9001:2015 certificate is reported, but the provided audit result is 0 and no customer cases are supplied.

Supplier typeThe supplier is identified as a combined company, with a business scope covering magnetic material production and sales plus plastic, rubber, hardware, and electronic-component activities. Its primary offered product is magnets, and it is not identified as an offshore company.

CertificationsThe supplier reports an ISO 9001:2015 certificate, indicating a stated quality-management certification. However, the provided audit evaluation result is 0, so the available evidence does not establish an unqualified certification or audit strength.

After-Sales capabilityThe supplier has inventory capability and offers several quotation terms, but it has no overseas agent or branch, overseas warehouse, or overseas showroom. It also lacks written procedures or records for effectively handling customer complaints and corrective and preventive actions, which is an explicit service-process deficiency.

R&D capabilityThe supplier provides ODM services and lists multiple customization routes, but it reported no new products during the past year and has no available SDK. The explicit lack of recent new-product development is a deficiency for innovation capability.

Production capacityThe supplier states that it manufactures magnetic materials, plastics, and rubber products and has inventory capability, with peak- and off-season lead times both stated as one month. However, there is no valid contract between the factory and related subcontractors, and the audit evaluation result is 0; these are explicit concerns despite the stated manufacturing scope.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, and minor customization, and also provides ODM services. These stated service options directly support a broad customization capability.

Product Q&A

Q:How fast can I get a reply?

You will receive our reply within 15 minutes during our work time, 08:00-18:00(UTC-8).

Q:What information do I need to supply when I have an inquiry?

To get a precise quotation on time, pls inform us of the following details when you send an inquiry to us: Dimensions or drawing; Grade of Material, Magnetized direction; Surface coating(if necessary); Quantity and delivery terms. If you don't have the above information, you can inform us of the application of the magnets, and our technician will provide it. professional advice for you.

Q:Can you offer customized sizes and shapes?

Yes, we could produce customized-sized, shaped magnets according to customers' requirements.

Q:Can I have a free sample before mass production?

Yes. We could offer free samples if the magnets are in stock, but you need to pay the delivery cost. It may take a minimum of 7 days for production if your size is out of stock. For neodymium magnets, we have many different-sized samples in stock.

Q:Can magnets be shipped by air or by express?

We could ship the magnets by air or by express with our magnetic shield package.