About JLmagnet

Founded in 1996 as Cixi Jiwei Magnetoelectric Material Factory and formally incorporated in 2006, Ningbo Jinlun Magnet Technology is a leading Chinese manufacturer of sintered NdFeB magnets, with over 30 years’ experience in R&D, production and sales. Located in Cixi, Ningbo within the Shanghai‑Hangzhou‑Ningbo golden‑triangle economic circle, we enjoy easy access to Ningbo seaport for efficient global sea‑freight delivery. Operating two manufacturing sites with more than 400 employees in total, we run digital‑intelligent workshops empowered by ERP, MES and WMS management systems to achieve full‑lot traceability from raw material input to finished‑product delivery. As a national high‑tech and national‑level "Specialized, Refined, Distinctive and Innovative Little Giant" enterprise, our annual turnover exceeded 800 million RMB in 2025, with an annual output of 8000 tons of sintered NdFeB magnets. In 2021, we built the municipal‑level Magnet Engineering & Technology Center and carry out in‑depth industry‑university‑research cooperation with research institutes such as the Institute of Materials, Chinese Academy of Sciences, forming a complete innovation loop from fundamental research, process optimization to mass‑production transformation.

We own full vertical production capacity covering melting, hydrogen‑decrepitation, powder preparation, pressing, sintering, precision CNC machining, multi‑type surface treatment and final performance testing. Our in‑house R&D‑test center is equipped with complete analytical and testing instruments for rare‑earth raw‑material inspection, in‑process monitoring and magnetic‑property validation, supporting reliability tests including salt‑spray corrosion and high‑temperature aging assessment.

We specialize in high‑performance rare earth permanent magnets, with core strengths in low/non‑heavy rare‑earth grain‑boundary diffusion technology, diversified raw‑material supplier echelon, advanced production infrastructure and strict quality control. We are capable of mass‑producing high‑grade magnet series including SH, UH, EH and AH grades for demanding high‑temperature operating scenarios. We deliver blocks, discs, rings, arcs, trapezoids, multipolar & radial rings, Halbach assemblies and customer‑specific custom shapes, paired with one‑stop magnetic‑solution service. Multiple anti‑corrosion protection options such as zinc, nickel, epoxy and parylene coatings are available to fit diverse working environments. Beyond standard catalog products, our technical team provides magnetic‑circuit simulation, magnetic‑field analysis and material‑selection optimization support. We support rapid prototyping, pilot‑run trial production as well as large‑volume serial manufacturing for industrial clients.

Our products serve synchronous motors, consumer electronics, automotive new‑energy drive motors, wind power generation equipment, 5G communication hardware, medical apparatus and aerospace industries. Our magnets are exported to more than 20 countries and regions worldwide. We consistently participate in top‑tier international exhibitions including CWIEME Berlin, Coiltech Italy, Techno‑Frontier Japan and domestic motor‑industry expos, building stable long‑term partnerships with global tier‑one suppliers and equipment manufacturers across Europe, Southeast Asia, North America and other markets.

Committed to green and sustainable development, we operate eco‑friendly manufacturing workflows. We improve rare‑earth material utilization rate, promote recyclable resource circulation for production waste, and adopt energy‑saving low‑carbon processes to cut energy consumption and carbon emissions, advancing sustainable growth for the whole magnet industry.

As a professional magnetic‑materials manufacturer, we are committed to advancing technology and refining quality under the most stringent standards. Our accreditations cover IATF16949 (Automotive Quality System), ISO9001 (Quality Management), ISO14001 (Environmental Management), and Intellectual Property Management System (IPMS). We hold over 60 invention and utility‑model patents covering magnet formula, grain‑boundary diffusion, machining processes and tooling devices. These credentials reflect our integrated strengths in high‑end material development, green intelligent manufacturing, systematic process control and intellectual‑property protection, all of which underpin our reliable, cutting‑edge solutions for global customers. We warmly welcome worldwide partners for technical exchange and win‑win cooperation.
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World-Class Team
Graduates from top universities worldwide
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Advanced R&D
Self-developed
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Innovation Focus
Multiple innovative technologies

Our Products

Mutipole Ring Magnet

Mutipole Ring Magnet

Model: 42H OD25 × ID16 × H5 mm, 8/12 poles
Parameters: Br>1.29T
Hcb>963kA/m
Hcj>1353kA/m
Hk/Hcj>95%
(BH)max: 318~342kJ/m3
Max Working Temperature: 120℃

Radial Ring magnets

Radial Ring magnets

Model: 40H OD18 × ID10 × H4 mm, 4/6 poles
Parameters: Br>1.26T
Hcb>939kA/m
Hcj>1353kA/m
Hk/Hcj>95%
(BH)max: 302~326kJ/m3
Max Working Temperature: 120℃

Sintered NdFeB magnets

Sintered NdFeB magnets

Model: 45SH OR32.5 × IR29 × H24.9 × 60°
Parameters: Br>1.33T
Hcb>995kA/m
Hcj>1592kA/m
Hk/Hcj>95%
(BH)max: 342~366kJ/m3
Max Working Temperature: 150℃

Sintered NdFeB magnets

Sintered NdFeB magnets

Model: 38M L20×W10×T5 mm
Parameters: Br>1.23T
Hcb>876kA/m
Hcj>1114kA/m
Hk/Hcj>95%
(BH)max: 287~310kJ/m3
Max Working Temperature: 100℃

Sintered Neodymium Magnet

Sintered Neodymium Magnet

Model: N52 D20x10x5mm
Parameters: Br>1.42T
Hcb>860kA/m
Hcj>955kA/m
Hk/Hcj>95%
(BH)max: 398~422kJ/m3
Max Working Temperature: 80℃

Sintered Neodymium Magnet

Sintered Neodymium Magnet

Model: N35 D10x2mm
Parameters: Br>1.18T
Hcb>860kA/m
Hcj>955kA/m
Hk/Hcj>95%
(BH)max: 263~287kJ/m3
Max Working Temperature: 80℃

Sintered NdFeB magnets

Sintered NdFeB magnets

Model: Product models per our naming code: D (disc/column), F (block), R (arc) + dimensions + optional features. Examples: D15×3.8 (disc); D15×D5×25 (ring); D50×D13.5×20-D20×8 (ring with counterbore); F18×9.5×2 (block); R90×R85×40×50 (arc); features such as steps/holes/chamfers appended after "-", e.g. D8×1-D6×7.
Parameters: Grade range: N25-N58, 33M-56M, 30H-56H, 30SH-56SH, 30UH-54UH, 28EH-48EH, 28AH-42AH
Remanence Br: 9.6-14.7 kGs (0.96-1.47 T).
Intrinsic coercivity Hcj: ≥12 kOe (N/M), ≥16 kOe (H), ≥20 kOe (SH), ≥25 kOe (UH), ≥30 kOe (EH).
Max energy product (BH)max: 23-53 MGOe.
Max working temperature: 70-80°C (N), 100°C (M), 120°C (H), 150°C (SH), 180°C (UH), 200°C (EH).
Custom magnetization, dimensional tolerance and coatings per drawing.

Company Gallery

Certifications & Awards

ISO 14001:2015
ISO 14001:2015
ISO 9001:2015
ISO 9001:2015
IATF 16949:2016
IATF 16949:2016

Success Stories & Case Studies

OEM/ODM manufacturers, OEM integrators and magnetic component suppliers.

OEM/ODM manufacturers, OEM integrators and magnetic component suppliers.

Claims improved magnetic performance and assembly fit via material and shape customization; specific ROI/performance improvements require customer project data to validate.
Highlights: shape customization capability, multi-industry coverage, local and industry honors (Green Factory, 'Small Giant' enterprise, etc.).

Location: GLOBAL 📦 Quantity: Over 3,000 domestic and international customers served cumulatively over 30 years; long-term customer repurchase rate ≥85%; annual stable supply capacity of 8,000 tons. Customers include OEM/integrator manufacturers across automotive, robotics, wind power

Company & Product Videos

Company Introduction & Factory Tour

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Product Demonstration - Kestrel K-1

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Technology Innovation Showcase

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Customer Testimonials & Success Stories

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