1.Prodcuts Description
Sintered Neodymium Iron Boron Magnets or "NdFeB" magnets offer the highest energy product of any material today and are available in a wide range of shapes, sizes and grades. NdFeB magnets can be found in a variety of applications including high performance motors, brushless DC motors, magnetic separation, magnetic resonance imaging, sensors and loudspeakers.
Magnetic properties will differ depending upon alignment direction during compaction and upon size and shape. Download individual spec sheets from the table below, or get the full neo catalog here for specific grades and their magnetic properties, including the trade-off in Br (and energy product) for HcJ (intrinsic coercivity, resistance to demagnetization).
2.Key Features & Benefits:
Maximum Strength (Grade N52) – Despite its diminutive size, it offers the highest commercially available magnetic energy product among neodymium magnets, ensuring reliable holding, sensing, or actuation in compact designs.
Tight Tolerance (±1%) – Manufactured with exceptional dimensional consistency to guarantee repeatable performance in automated assembly processes.
Versatile Coating Options – Available with Nickel, Silver, Epoxy, or Black Epoxy coatings to suit environmental requirements, from standard indoor use to enhanced corrosion resistance.
Customizable Magnetization – Choose thickness (axial), diametrical, or radial magnetization to match your magnetic circuit layout.
High Temperature Grades Available – Standard N52 operates up to 80°C; we also offer N35‑N52 variants with thermal stability up to 220°C (M, H, SH, UH, EH, AH series) for demanding environments.
3.Applications:
The ultra‑small form factor of this magnet makes it indispensable for:
Micro‑Sensors & Switches – Reed switches, hall effect sensors, and proximity detectors.
Medical Devices – Miniature implants, diagnostic equipment, and drug delivery systems.
Consumer Electronics – Earphones, micro‑motors, haptic feedback modules, and smart wearables.
Aerospace & Defense – Compact actuators, guidance systems, and secure fastening in tight spaces.
R&D & Prototyping – Ideal for proof‑of‑concept in miniaturized magnetic assemblies.
Industrial Automation – Precision robotics, micro‑positioning stages, and high‑density magnetic arrays.
Packaging & Logistics
Selling Unit: Single item (bulk quantities available)
Individual Package Dimensions: 34 × 24 × 18 cm (for bulk packaging)
Individual Gross Weight: 0.021 kg (approx. 21 g per unit packaging, varies by quantity)
Shipping Port: Xiamen, China
Shipping Methods: Air freight, sea freight, express courier (DHL, FedEx, UPS)
4.Why Choose U-POLEMAG?
Specialized in Miniature Magnets – We master the challenges of micro‑magnet manufacturing.
End‑to‑End Customization – From material selection to final packaging, we adapt to your process.
Global Compliance – Our magnets meet the strictest international standards.
Reliable Partner – Over a decade of experience serving industries worldwide.
5.FAQ
Q: May we get a sample of the product? How to ship and how to pay ?
A: Yes,the samples testing should be necessary for first time , we would like cooperate for samples. If it's regular magnets and we have stock , we would like supply free samples for customers, if need new production , we will quote samples fee and we can accept T/T, Paypal , Western Union , Alibaba trade assurance for payment.We will send the sample to you by DHL express.
Q: What magnet materials are available?
A: There are many different magnet materials available, which we are able to provide. These include neodymium, samarium cobalt,alnico, ferrite, bonded neodymium, bonded samarium cobalt, bonded ferrite, injection molded neodymium, injection molded samarium cobalt, rubber stripping, and FeCrCu. If there is another material you wish to procure, please contact us.
Q:Can you supply custom magnets?
A: Yes, we have the capability to produce magnets to your specification in NdFeB, SmCo, AlNiCo, Ferrite, and rubberized magnet materials. You can contact us for more details .
Q:Do you have a minimum purchase order?
A: The manufacturing of magnets is a complex process, please check our production flow for more information. As considering the production time and cost, we suggest the batch order value should be more than US$3000 per time; Of course, if less than US$3000,we also would like quote our offer for your kind consideration, so we have no strict MOQ .
Q: How many days does it take to ship my order?
A: In generally, the sintering NdFeB and SmCo magnet production time is 15-25days, cast AlNiCo will take 25-30days , the magnetic assemblies will be about 30-40 days for your reference , the exact time need to be checked before the order .
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