Browse our core inventory of high-performance rare earth magnetic components, custom-fabricated to international tolerances.
An in-depth analysis of structural integrity, magnetic circuits, and international engineering trends.
Modern B2B engineering paradigms demand fastening components that combine mechanical durability with spatial efficiency. Standard mechanical fasteners often struggle in high-vibration, high-impact industrial settings where drilling structural components is either impossible or structurally detrimental. This has driven the widespread adoption of Threaded Neodymium Magnets (commonly designed as threaded pot or cup assemblies).
By integrating a high-energy Sintered Neodymium-Iron-Boron (NdFeB) core inside a precision-machined steel housing, design engineers achieve a specialized closed-circuit magnetic field. This configuration increases localized holding force while providing robust mechanical attachment points via internal or external threads (female studs, male threaded bars, or countersunk configurations).
As automation, robotics, and electric vehicle (EV) supply chains require lightweight holding devices with high power density, threaded rare earth assemblies have transitioned from simple mounting brackets to mission-critical hardware components.
Unlike raw magnets, the steel casing of a pot magnet diverts the magnetic flux from the back face back to the active holding face, concentrating and significantly increasing the overall grip performance.
Multi-layered surface protection, including Ni-Cu-Ni electroplating, epoxy, zinc, and protective rubber vulcanization, ensures performance stability in humid, offshore, and marine environments.
Tailored NdFeB formulations ranging from N35 to N52, with high-temperature resistance variations (M, H, SH, UH, EH) that perform without permanent demagnetization up to 200°C.
A National High-Tech Enterprise Pioneer in Rare Earth Magnetic Innovations since 1999.
Zhejiang Laysun Magnetics Ltd. stands at the forefront of China's advanced materials sector. With our major production hub located in Suining, Sichuan, we operate custom raw material sintering, automated slicing, wire electrode cutting, high-precision CNC machining, and automated packaging systems.
Our core capabilities center on high-performance rare earth NdFeB magnets, catering to complex applications in electric vehicles (EV traction motors, EPS), industrial automation, wind turbines, consumer electronics (such as OEM voice coil motors), and durable heavy-duty holding apparatuses.
Fully compliant with ISO9001, ISO14001, OHSAS18001 (ISO45001), API 6D, API 607, CE, and IATF 16949 automotive standard requirements.
How automation and vertical integration insulate global buyers from rare earth material volatility.
Procurement managers face a volatile landscape when sourcing critical rare earth minerals. Fluctuations in dysprosium (Dy), terbium (Tb), and neodymium (Nd) supply lines demand a manufacturing partner with vertical supply integration.
Our Suining production facility handles the entire value chain from vacuum induction melting (VIM) and hydrogen decrepitation to jet milling, pressing, and sintering. By keeping critical processes in-house, we control mechanical tolerances, flux consistency, and delivery schedules.
Our Smart Factory 4.0 integration includes closed-loop control of sintering furnace atmosphere and temperature gradients, minimizing standard deviation in magnetic property distributions. Precision thread tapping (UNC, UNF, and Metric coarse/fine configurations) is performed on multi-axis CNC workstations to ensure smooth integration with industrial hardware.
Every manufacturing batch undergoes comprehensive magnetic and mechanical validation. This includes demagnetization curve analysis using high-temperature permeameters, dimensional inspection using coordinate measuring machines (CMM), coating thickness verification via X-ray fluorescence (XRF), and salt spray corrosion testing to match ASTM B117 standards.
Standard material grades, operating parameters, and mechanical features for threaded pot designs.
| Property Parameter | Standard Metric Ranges | Standard Imperial Ranges | Typical Application Fit |
|---|---|---|---|
| Remanence (Br) | 1.17 - 1.48 Tesla | 11.7 - 14.8 kGauss | High-density sensor holding, actuators |
| Coercivity (Hcb) | ≥ 868 kA/m | ≥ 10.9 kOe | Anti-demagnetization in motor components |
| Intrinsic Coercivity (Hcj) | 1200 - 2785 kA/m | 15 - 35 kOe | High-temperature operating stability |
| Max Energy Product (BH max) | 263 - 422 kJ/m³ | 33 - 53 MGOe | Miniaturized automotive EPS & tooling |
| Max Operating Temperature | 80°C - 220°C | 176°F - 428°F | Variable grade customization (N, M, H, SH, UH, EH) |
| Available Thread Configurations | M3 to M12 Internal / External Studs | #6-32 to 1/2" UNC/UNF Threads | Standard structural mechanical fasteners |
Engineered rare earth magnet configurations serving specialized industrial sectors.
End-of-arm tooling components, structural sensor frames, and automated guided vehicles (AGV) docking fixtures require compact, high-performance holding force.
Lightweight motor designs and secure mounting configurations. Precision balanced NdFeB assemblies minimize deadweight while ensuring robust vibrational resistance.
Electric Power Steering (EPS), drive motors, sensor systems, and interior trim fittings utilize custom high-coercivity Neodymium magnets to maintain long-term stability.
Brushless motors for compact tools require segment and ring magnets that withstand rotational speeds and thermal cycles without mechanical failure.
Compact voice coil motors, MagSafe smartphone arrays, and acoustic speakers rely on tight tolerances and reliable magnetic output.
From compressor motors to cabinet latches, permanent magnetic assemblies ensure quiet operation and improved energy efficiency ratings.
Providing global engineering support and supply chain integration from our Chinese manufacturing hubs.
Headquartered in Hangzhou, Zhejiang, and supported by our modern production facility in Sichuan, we coordinate international shipping, custom brokerage documentation, and logistics options (including air, ocean, and multimodal logistics).
We support JIT (Just-In-Time) inventory scheduling for global OEM factories in North America, Germany, Japan, and Southeast Asia. Our technical support team assists client design departments with magnetic field simulations, finite element analysis (FEA), and mechanical stress simulations to ensure flawless integration.
Submit your drawings (STEP/DWG format), required magnetic grade, corrosion protection criteria, and estimated annual usage. Our engineering team will deliver a structured quote and feasibility feedback within 24 business hours.
Fully compliant with international chemical, safety, and manufacturing quality system requirements.
ISO 9001
ISO 14001
IATF 16949
RoHS & REACH
Answers to design engineer queries regarding threaded pot magnets and sintered rare earth materials.
Discover our range of custom motor arcs, rubber-coated pots, and magsafe rings.
Laysun Magnetics