How is the strength of a magnet measured?

Gaussmeters are used to measure the magnetic field density at the surface of the magnet. This is referred to as the surface field and is measured in Gauss (or Tesla). Pull Force Testers are used to test the holding force of a magnet that is in contact with a flat steel plate. Pull forces are measured in pounds (or kilograms).

Can I cut, drill, or machine neodymium magnets?

The Neodymium Iron Boron material is very hard and brittle, so machining is difficult at best.

R29.9xr26.4X44.75X25mm N38sh Nicuni for Speaker Arc Magnet

Name: R29.9xr26.4X44.75X25mm N38sh Nicuni for Speaker Arc Magnet
Brand: Great Magtech (Xiamen) Electric Co., Ltd.
SKU: 680925841

Fujian, ChinaGreat Magtech (Xiamen) Electric Co., Ltd.

US$0.42

5,000-49,999 Pieces

US$0.37

50,000+ Pieces

Sample price:US$0.51/piece.Request sample

Product profile

Customization

Available

Application

Industrial Magnet, Solenoid, Motor Magnet, Industrial Arc Magnet

Shape

Arc

Model NO.

n38sh

Coating

Nickel

Grade

N42

Product Name of Motor Magnet

N45h NdFeB Or18mm Xir14mmxt30mmx45deg NdFeB Arc Ma

Envrionment Management System

ISO9001/14001

Certificate of Motor Magnet

Ce/RoHS/SGS

Tolerance of Motor Magnet

+/- 0.05mm

Model Number of Motor Magnet

Gme-Arc45h

Magnetization Direction of Motor Magnet

Axial//Diametrical/Radial/Multi-Poles Magnetized

Working Temp. of Motor Magnet

80-200 Degree Centigrade

Transportation of Motor Magnet

by Sea, by Air, by Express

Payment

T/T, Paypal, Western Union

Lead Time of Motor Magnet

15-25days

Transport Package

Carton, Wood Case, Anti-Magnetized Package

Specification

As Client's Request

Trademark

GME

Origin

Ningbo/Xiamen

HS Code

850511100

Production Capacity

300 Tons

Key features

Strongest Permanent Magnets: Neodymium-Iron-Boron magnets are the strongest permanent magnets in the world.

Customizable Shapes and Sizes: Can be customized into a wide range of shapes and sizes with precise tolerances.

Multiple Coating Options: Multiple choices of coatings available to meet specific customer requirements.

Flexible Magnetization: Multiple magnetization orientations can be selected to meet specific needs.

OEM and ODM Services: Flexible customization services including OEM and ODM are available.

Low Minimum Order Quantity: Minimum Order Quantity is as low as 1 Piece.

Fast Lead Time: Off-season lead time is within 15 workdays.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceCooperated with Fortune 500Multi-language Pioneer

Great Magtech (Xiamen) Electric Co., Ltd.

Fujian, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Flexible customization CertifiedExport Year: 9 Years CertifiedNearest Port: Ningbo Port, Xiamen Port, Shanghai PortAverage Response Time: ≤9.80h

AI-Powered supplier vetting

SummaryThe supplier demonstrates established manufacturing, customization, export, and service-process capabilities. It reports annual capacity of 4,000 tons of neodymium magnets, 5,000 tons of rubber magnets, and 1,000 tons of samarium cobalt magnets, with flexible customization, ODM, and OEM services. Quality and service management are supported by written procedures and records, an approved supplier list, corrective and preventive action procedures, and finished-product inspection instructions. Certifications listed include RoHS and CE. The supplier has no SDK, overseas warehouse, showroom, agent, branch, or stated overseas service coverage, but has participated in Concrete Asia. Financial information is limited to year references, so credibility cannot be fully assessed. Innovation is evidenced by new products in the past year and ERP use, although no SDK is available. Customer-related evidence includes OEM service for well-known brands, but no specific customer names or case details are provided.

Supplier typeThe supplier is presented as a magnet manufacturer with reported production of neodymium, rubber, and samarium cobalt magnets. Its ODM and OEM offerings indicate it also operates as a manufacturing service provider for customized and branded products.

CertificationsThe supplier reports holding RoHS and CE certifications, along with other unspecified certifications. These stated certifications provide explicit compliance evidence, although the scope and validity details are not supplied.

After-Sales capabilityService capability is supported by written procedures, followed records, corrective and preventive action procedures, and an updated approved-supplier list. However, the supplier reports no overseas warehouse, showroom, agent, or branch, and lists zero countries with overseas services, limiting evidence of localized after-sales support.

R&D capabilityThe supplier reports having introduced new products during the past year, provides flexible R&D design services, and offers ODM services. It also uses ERP for production, procurement, quality control, and logistics management, but explicitly has no available SDK and reports zero for its sustainable-development technical transformation and big-data capabilities.

Production capacityReported annual capacity is 4,000 tons of neodymium magnets, 5,000 tons of rubber magnets, and 1,000 tons of samarium cobalt magnets. Production-related controls include uniform finished-product inspection instructions, while service procedures and records are established; stated lead times are within 15 workdays off-season and one month during peak season.

Customization capabilityThe supplier explicitly provides flexible customization through design and R&D services. It also reports ODM capability and OEM service for popular brands, supporting both customized product development and branded manufacturing.

Client casesThe supplier states that it provides OEM services for well-known brands and has participated in the Concrete Asia offline trade show. No customer names, project descriptions, order examples, or verifiable case outcomes are provided, so the depth of its customer track record cannot be fully assessed.

Product Q&A

Q:Which is the strongest type of magnet?

Neodymium (more precisely Neodymium-Iron-Boron) magnets are the strongest permanent magnets in the world.

Q:What are neodymium magnets? Are they the same as 'rare earth'?

Neodymium magnets are a member of the rare earth magnet family. They are called 'rare earth' because neodymium is a member of the 'rare earth' elements on the periodic table. Neodymium magnets are the strongest of the rare earth magnets and are the strongest permanent magnets in the world.

Q:What's the Grade of a magnet?

Atech Neodymium Permanent Magnet are graded according to their maximum energy product, which relates to the magnetic flux output per unit volume. Higher values indicate stronger magnets and range from N35 up to N52. and M, H, SH, UH, EH, AH series,can be customized into a wide range of shapes and sizes with precise tolerances. Multiple choices of coatings and magnetization orientations can meet specific customer requirements. Letters following the grade indicate maximum operating temperatures (o

Q:What materials do magnets attract?

Ferromagnetic materials are strongly attracted by a magnetic force. The elements iron (Fe), nickel (Ni), and cobalt (Co) are the most commonly available elements. Steel is ferromagnetic because it is an alloy of iron and other metals.

Q:What materials can I use to block/shield magnetic fields?

Magnetic fields cannot be blocked, only redirected. The only materials that will redirect magnetic fields are materials that are ferromagnetic (attracted to magnets), such as iron, steel (which contains iron), cobalt, and nickel. The degree of redirection is proportional to the permeability of the material. The most efficient shielding material is the 80 Nickel family, followed by the 50 Nickel family.