Core Compentce
The Foundation of Reliable Magnet Partnerships
As a leading magnet manufacturer deeply rooted in China’s magnetic industry, TOPMAG is committed to delivering tailored, high quality magnetic solutions to global clients by virtue of its four robust core capabilities engineering customization that caters to the unique technical requirements of diverse industries, strict quality control that runs through the entire production process from raw material selection to finished product inspection, global supply chain that ensures efficient, stable and on-time delivery across continents, and dedicated technical support that offers full cycle guidance from solution design to after-sales maintenance.
Why Our Core Competence Matters for
Your Business
For industrial clients (automotive, aerospace, medical devices, etc.), magnetic components are critical to product performance. Our 4 core capabilities address your key challenges:
Non-standard customization
Match your unique product designs;
Consistent quality
Avoid production delays caused by magnet performance deviations;
Global accessibility
Receive orders on time, regardless of your location;
Technical alignment
Get support from magnet experts throughout your project lifecycle.
Engineering & Customization Capabilities
Tailored Magnetic solutions for Your Unique Applications
We specialize in customizing magnetic components for industrial scenarios that require precise performance & form factors.
Shape Customization
Common shapes: Rings, blocks, discs, arcs, cylinders, tiles;
Complex geometries: Customized irregular shapes (e.g. curved magnets for automotive motors, notched magnets for sensors) - supported by CAD/CAM design & CNC machining.
Performance Customization
Magnetic strength: N35~N52 (neodymium magnets), up to 1.4T surface gauss;
Temperature resistance: Up to 200°C (samarium cobalt magnets) or 150°C (high-temperature neodymium magnets);
Coating options: NiCuNi (corrosion resistance > 1000 hours salt spray), epoxy, PTFE, passivation (for medical device compatibility).
Material Customization
Neodymium iron boron (NdFeB): High strength for compact devices;
Ferrite: Cost-effective for large-volume applications;
Samarium cobalt (SmCo): High-temperature & corrosion-resistant for aerospace;
Alnico: Stable performance for precision instruments.
Rapid Prototyping
Turnaround: 3~5 working days for 1~10 pcs of custom samples;
Validation: Free magnetic performance testing (flux density, coercivity) for samples.
End-to-End Quality Control
Iso-certified Quality for consistent Performance
Our quality management system covers every stage of production to ensure zero defects in delivered products:
Inbound Material Inspection
Raw material verification: Certificate of analysis (CoA) for rare earth materials;
Impurity testing: X-ray fluorescence (XRF) to ensure material purity (≤0.05% harmful impurities).
In-Process Control
Automated calibration: Magnetic field alignment equipment (precision ±0.5%);
Real-time monitoring: Online flux density testing for every 100 pcs of products.
Final Inspection
100% performance testing: Surface gauss, coercivity, remanence;
Dimensional inspection: Coordinate Measuring Machine (CMM) for complex shapes (tolerance ±0.02mm).
Certifications & Compliance
ISO 9001:2015 (quality management);
RoHS & REACH (restriction of hazardous substances);
FDA (for medical device-grade magnets);
Batch traceability: Each lot has a unique QR code (track raw materials, production date, inspector).
Global supply Chain Delivery
On-Time Delivery to 50+ countries Worldwide
We have built a global logistics network to support your just in time (lT) production:
Warehousing & Inventory
Local warehouses: 2,000 sqm bonded warehouse in Shanghai (supports bulk storage & partial shipments);
Safety stock: 30+ common magnet types (discs, blocks) in stock (delivery within 48 hours for standard orders).
Shipping Options
Express: DHL/FedEx (3~7 days to North America/Europe);
Air freight: 7~10 days (for bulk orders < 500kg);
Sea freight: 25~35 days (for large-volume orders > 1 ton) - FOB Shanghai/CIF destination.
Customs Support
Documentation: Commercial invoice (with HS code 85051100), packing list, material safety data sheet (MSDS), certificate of origin (CO);
Regional compliance: Support CE marking for EU clients, FCC compliance for US electronics clients.
End-to-End Technical Support
Dedicated support for Your Project success
Our 15+ years of magnetic engineering experience ensures you get the right support at every stage:
Pre-Sales Consultation
24-hour initial response (working days) via email/WhatsApp;
Free magnetic solution design: Recommend material/shape/performance based on your application (e.g., motor torque calculation, sensor magnetic field simulation).
In-Sales Collaboration
Regular production updates: Photos/videos of production progress for custom orders;
Sample validation support: Assist with on-site testing (if required) or provide detailed test reports.
After-Sales Service
12-month quality warranty: Free replacement for defective products (verified by our technical team);
Lifetime technical guidance: Support for magnet maintenance, performance optimization, and reapplication.
Our Manufacturing Strengths
Years of Industry Experience
Specialized in magnetic component manufacturing since 2004
Countries Served
Global coverage across Europe, Americas, Asia & Oceania
On-Time Delivery Rate
Backed by optimized supply chain & inventory management
Custom Projects Completed
Tailored solutions for automotive, aerospace & medical industries
