If I stick two neodymium magnets together, does their strength double?

No. It will a little smaller. For example, two magnets rated with a individual pulling force of 50 lbs will have a combined pulling force of 90 lbs when stick together.

Black Epoxy Neodymium Ring Magnet with Groove Notch

Name: Black Epoxy Neodymium Ring Magnet with Groove Notch
Brand: Hangzhou Yangyi Magnetics Co., Ltd.
SKU: 1960868921

Zhejiang, ChinaHangzhou Yangyi Magnetics Co., Ltd.

US$1.20-6.60

100 Pieces

Sample price:US$30.00/piece.Request sample

Product profile

Customization

Available

Application

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

Shape

Block

Model NO.

Black Epoxy Magnet

Coating

Epoxy

Grade

N52

Product Name

Black Epoxy Neodymium Ring Magnet with Groove Notc

Tolerance

+/-0.1mm

Usage

Furniture, Sensor, Motors

Package

Carton

Transport Package

Carton

Specification

A variety of sizes, depending on customer needs.

Trademark

YYMAG

Origin

China

HS Code

8505111000

Production Capacity

5000000/Pieces/Month

Key features

High Performance N52 Grade: Features N35-N52 grades with high coercive force and energy density for superior magnetic strength.

Customizable Tolerance: Offers precise +/-0.1mm tolerance for customized dimensions to meet specific application needs.

Durable Epoxy Coating: Black epoxy coating provides excellent corrosion resistance and protection for neodymium magnets.

Versatile Applications: Suitable for electronics, speakers, motors, sensors, jewelry, and industrial machinery.

Professional Manufacturing: Over 10 years of experience with ISO9001:2016, SGS, and Rohs certifications ensuring quality.

Fast Production Time: Regular orders take 7-10 days, with urgent orders producible in as little as 3 working days.

Quality Guarantee: 100% quality guarantee with full responsibility for defects or shipping damage, including refunds.

Global Market Reach: Products exported to USA, Germany, UK, Japan, and other major global markets with good reputation.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceMulti-language Pioneer

Hangzhou Yangyi Magnetics Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2007-06-06Nearest Port: Shanghai, Ningbo, HangzhouAverage Response Time: ≤5.31hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DDP, EXW

AI-Powered supplier vetting

SummaryHangzhou YangYi Magnetics Co., Ltd. is identified as a China-based private manufacturer of permanent magnets, with operations in Zhejiang and a stated Hangzhou address. The supplier reports ISO9001:2008, SGS, and RoHS certifications, but certification validity and scope are not independently evidenced. It offers broad customization and ODM services, while no new products were reported during the past year and no SDK is available. Production indicators include more than 10 production lines, 6–10 quality-control staff, and stated output across several magnet categories. Service controls are weakly documented: no written corrective-action, complaint-handling, or supplier-service assessment procedures or records were provided. No overseas showroom, agent, branch, or offline trade-show participation is reported. Financial credibility cannot be fully assessed from the provided information because the financial-year fields contain years rather than financial statements or performance results.

CertificationsThe company description explicitly lists ISO9001:2008, SGS, and RoHS certifications. The provided information does not include certificate numbers, validity dates, issuing details, or applicable scopes, so the certifications are reported but not fully verifiable from the slices.

After-Sales capabilityThe supplier has no written corrective and preventive action procedures or records, no written customer-complaint handling procedures or records, and no written or followed supplier-service assessment procedures. It also reports no overseas showroom, agent, branch, or offline trade-show participation, although Ningbo and Shanghai ports are identified as nearby service points.

Production capacityThe supplier is identified as a permanent-magnet manufacturer with more than 10 production lines, 6–10 quality-control staff, and stated output for magnetic name badges, neodymium, SmCo, Alnico, and magnetic assemblies. The production information indicates broad product coverage and substantial operating capacity, although no independent verification or detailed capacity methodology is provided.

Customization capabilityThe supplier explicitly offers customization from samples, full customization, flexible customization, customization from designs, and minor customization, as well as ODM services. This is direct evidence of broad customization coverage.

Product Q&A

Q:Are you a factory or trading company?

We are one of the leading magnet manufactures in Dongguan, welcome to visit our factory.

Q:Is the magnet quality guaranteed?

Yes, we can guarentee the magnets we ship to you is of 100% with good quality as you order, if there is any product quality problem or products broken during shipping, we will bear 100% responsibility for you, you can ask for for related refund or replacement.

Q:How long does production and shipping take?

For regular magnet orders, it would take 7-10working days or so, for customized items, it would take 25-35working days or so. Besides, the fastest production time is 3working days for the urgent orders.

Q:How do grade and dimensions affect Gauss Level?

Same magnet size, higher grade with higher gauss; Same magnet grade, same surface area, the thicker, the higher gauss; Same magnet grade, same thickness, larger surface area with lower gauss;

Q:What does pulling force mean?

Pulling force is a measure of magnetic strength. It is the amount of force required to remove a magnet parallel to a solid magnetic surface, such as a steel plate.