Automotive Neodymium Magnet Manufacturer Solutions & Applications
As a certified IATF 16949 automotive neodymium magnet manufacturer, King-Nd delivers high-performance NdFeB magnets engineered to meet the extreme thermal, mechanical, and reliability demands of position sensors, EPS, and EV traction motors.
Where King-Nd Magnets Are Engineered In
From full electric traction to mild-hybrid assist, King-Nd’s high-performance magnets are engineered into every layer of the modern automotive drivetrain, delivering the power density and reliability that motor designers demand.
Two Ways to Keep Your Supply Export-Control Ready
Heavy rare earth (Dy/Tb/Ho) magnets are subject to export controls. Whatever grade your design needs, we offer a route that keeps your supply chain moving.
Where the application allows it, we supply the magnet in an HRE Free grade, so no heavy rare earth is involved.
Need high-performance NdFeB with heavy rare earths? We supply ready-to-use magnet assemblies rather than loose magnets. By delivering fully integrated functional components, we effectively navigate export control constraints, ensuring seamless and compliant global delivery for your project.
Same goal, same performance: you keep the grade your motor needs, without the export-control hurdle.
Drivetrain & Traction
| Component | Magnet Form | Approx. Usage / Vehicle | Recommended Grade | Export-Control Ready Options |
|---|---|---|---|---|
| Main Drive Motor (PMSM) | Segmented Tile-shaped Magnets | 1.8–2.8 kg (single motor) | N42UH / N48UH / N35EH | ✔ HRE Free◆ Magnet Assembly |
| Hybrid ISG (Integrated Starter-Generator) | Tile-shaped Magnets | 0.6–1.0 kg | N42SH–N42UH | ✔ HRE Free◆ Magnet Assembly |
| BMS High-Voltage DC Relay (magnetic arc suppression) | Block / Custom-shaped Magnets | 20–40 g | N40H–N42SH | ✔ HRE Free |
Chassis & Safety Systems
| Component | Magnet Form | Approx. Usage / Vehicle | Recommended Grade | Export-Control Ready Options |
|---|---|---|---|---|
| EPS Motor | Ring / Tile-shaped Magnets | 200–250 g | N40H–N42SH | ✔ HRE Free |
| ABS / ESP Wheel Speed Sensor (Hall-effect) | Disc / Small Ring Magnets | 10–20 g | N35H–N42H | ✔ HRE Free |
| EMB Motor (electromechanical brake booster) | Tile-shaped Magnets | 80–120 g | N42SH–N48UH | ✔ HRE Free◆ Magnet Assembly |
Thermal Management
| Component | Magnet Form | Approx. Usage / Vehicle | Recommended Grade | Export-Control Ready Options |
|---|---|---|---|---|
| Electric A/C Compressor Motor | Tile-shaped Magnets | 80–120 g | N40SH–N42SH | ✔ HRE Free |
| Electric Water Pump Motor | Ring-shaped Magnets | 30–50 g | N42H–N50SH | ✔ HRE Free |
| Electric Vacuum Pump Motor | Ring-shaped Magnets | 20–40 g | N42H–N50SH | ✔ HRE Free |
| Heat Pump / Cooling Fan Motor | Ring-shaped Magnets | 15–30 g | N42H–N50SH | ✔ HRE Free |
Body Comfort & Smart Cockpit
| Component | Magnet Form | Approx. Usage / Vehicle | Recommended Grade | Export-Control Ready Options |
|---|---|---|---|---|
| Wiper Motor | Ring-shaped Magnets | 15–25 g | N35–N42M | ✔ HRE Free |
| Window Lift Motor | Ring-shaped Magnets | 12–20 g / unit | N35–N42M | ✔ HRE Free |
| Seat Adjustment Motor | Ring-shaped Magnets | 8–15 g / unit | N35–N42M | ✔ HRE Free |
| Power Tailgate Motor | Ring-shaped Magnets | 20–30 g | N35–N42M | ✔ HRE Free |
| Mirror Fold Motor | Micro Ring Magnets | 3–6 g / unit | N35–N40M | ✔ HRE Free |
| In-Cabin Loudspeaker (Tweeter) | Round Disc Magnets | ~50–100 g (full set) | N35–N42 (standard grade) | ✔ HRE Free |
| Steering Angle / Throttle Position Sensor (Hall-effect) | Small Disc Magnets | 10–25 g (combined) | N35–N40M | ✔ HRE Free |
Engineered to Meet Automotive-Grade Demands
Automotive magnet applications operate under some of the harshest conditions in industrial manufacturing: extreme under-hood heat, motors spinning at tens of thousands of RPM, and years of continuous vibration and thermal cycling. King-Nd addresses these demands through advanced magnet grades, precision manufacturing, and a quality system built specifically for automotive supply chains.
Challenge 01
High-Temperature Environments
Under-hood temperatures can exceed 150°C, and traction motors generate significant heat during operation. Standard magnets risk irreversible demagnetization under these conditions.
King-Nd Solution
SH, UH, and EH series magnets offer high intrinsic coercivity (Hcj up to 30 kOe), engineered to maintain performance at elevated temperatures. Grain boundary diffusion (GBD) technology further enhances thermal stability without relying on excessive heavy rare earth content.
Challenge 02
High-Speed Rotation & Mechanical Strength
Traction motors and turbochargers operate at speeds exceeding 15,000 RPM, subjecting magnets to extreme centrifugal forces.
King-Nd Solution
Precision-machined magnets with tight dimensional tolerances (±0.01 mm) and high mechanical strength. Custom rotor assemblies are dynamically balanced to G2.5/G6.3 standards for high-speed applications.
Challenge 03
Long-Term Reliability
Automotive components must perform reliably for 10+ years and 150,000+ miles in harsh environments involving vibration, thermal cycling, and corrosion.
King-Nd Solution
An IATF 16949 certified quality management system, full PPAP documentation, and rigorous testing, including salt spray testing up to 500 hours, thermal shock, and vibration testing, with full material traceability from raw material to finished magnet.
Product Capabilities for Automotive Applications
From standard sintered magnets to fully custom assemblies, King-Nd’s automotive product range covers the full spectrum of what modern motor and sensor designs require. Explore our core product lines below.
Sintered NdFeB Magnets
N35 to N52 grades, including SH, UH, and EH series, optimized for automotive motor applications requiring high temperature stability and demagnetization resistance.
View Product LineMagnetic Assemblies
Rotor assemblies, sensor magnets, and actuator components engineered ready to integrate directly into your motor or system design.
View AssembliesCustom Solutions
Custom grades, geometries, and coatings tailored to your specific automotive application, developed together with our engineering team.
Explore Co-EngineeringCertified to Automotive Industry Standards
Meeting automotive supply chain requirements takes more than material performance. It requires a quality system built for traceability, consistency, and long-term accountability. King-Nd’s certifications and patent portfolio reflect a sustained investment in both process discipline and materials science.
IATF 16949
The leading global quality management standard for the automotive industry, confirming our capability to supply into automotive supply chains.
PPAP Capable
Full Production Part Approval Process documentation and support, one of the most important qualification requirements for automotive customers.
ISO 9001 / 14001 / 45001
Certified quality management, environmental management, and occupational health and safety management systems.
33 Patents
A quantifiable measure of our sustained investment in magnetic materials science and product innovation.
20+ years in the automotive industry. Steven knows what motor and drivetrain designers need from a magnet, and he will guide your inquiry from your first question through to your quotation.
Thank you!
Your request has been sent. Steven LIU, our Automotive Industry Manager, will be in touch within 24 hours.
Ready to Discuss Your Automotive Application?
Whether you’re developing a next‑generation EV traction motor or optimizing an existing EPS system, our engineering team is ready to collaborate. We provide application‑specific grade recommendations, design support, and full PPAP documentation.