Powering Motion Control Excellence with High-Performance Magnets
Powering Motion Control Excellence with High-Performance Magnets
Advanced Magnets for Next-Generation Motors & Actuators
TOPMAG engineers precision NdFeB, SmCo, and Ferrite permanent magnets for critical motion control applications, spanning industrial automation, robotics, aerospace, and electric vehicles. Our solutions power core components including BLDC motor rotors, servo motor stators, linear actuator magnetic tracks, and piezoelectric actuator assemblies.
All magnets are produced in IATF 16949 and ISO 9001 certified facilities, ensuring exceptional thermal stability, corrosion resistance, and consistent magnetic performance. We enable smaller, more efficient, and higher-torque motion systems that meet global industrial standards while accelerating the adoption of next-gen automation technologies.
Magnet Applications by System
The application of magnets in traditional motors & actuators:
| Motor/Actuator System | Key Components | Recommended Magnet Grade | Core Performance |
|---|---|---|---|
| BLDC Motors | Rotor Assemblies, Pole Shoes | NdFeB N45SH / N52M | High magnetic energy density, low cogging torque |
| Servo Motors | Stator Magnets, Feedback Sensors | SmCo Sm2Co17 / NdFeB N42UH | High positional accuracy, excellent thermal stability |
| Stepper Motors | Rotor Magnets, Tooth Cores | Ferrite Y35 / Bonded NdFeB N35 | Low cost, high holding torque |
| Linear Actuators | Magnetic Tracks, Platen Assemblies | NdFeB N48M / SmCo SmCo5 | High force density, smooth motion |
Exclusive system magnet application for advanced motion control:
| Advanced Motion System | Key Components | Recommended Magnet Grade | Core Performance |
|---|---|---|---|
| Collaborative Robot Joints | Harmonic Drive Magnets, Torque Sensors | NdFeB N45EH / SmCo Sm2Co17 | Zero backlash, high torque-to-weight ratio |
| Piezoelectric Actuators | Magnetic Bias Assemblies, Position Sensors | Micro NdFeB N38M / AlNiCo 5 | Ultra-high precision, fast response |
| Aerospace Actuators | Flight Control Actuator Magnets | SmCo Sm2Co17 / NdFeB N40UH | Radiation resistance, extreme temperature stability (-50°C to 300°C) |
| AGV Drive Motors | Wheel Hub Motor Rotors | NdFeB N42SH / Ferrite Y40 | High efficiency, vibration resistance |
Top-Rated Motors & Actuators Magnet Components
BLDC Motor Rotor Magnets
Servo Motor Stator Magnets
Linear Actuator Magnetic Tracks
Piezo Actuator Magnetic Bias Assemblies
Motor-Grade Magnet Types & Key Features
NdFeB and SmCo magnets are the preferred choice for high-performance motors & actuators due to their superior magnetic energy density and thermal stability. We also provide Ferrite and AlNiCo magnets for specific low-cost or extreme-temperature scenarios.
| Magnet Type | Key Advantages | Typical Motor Applications |
|---|---|---|
| NdFeB (Neodymium) | Highest magnetic energy density (up to 55 MGOe), customizable coatings, high torque density | BLDC motors, servo motors, collaborative robot joints |
| SmCo (Samarium Cobalt) | Excellent high-temperature stability (up to 350°C), corrosion resistance, no demagnetization risk | Aerospace actuators, high-temperature servo motors |
| Ferrite | Low cost, high resistance to demagnetization, stable in harsh environments | Stepper motors, low-power BLDC motors |
| AlNiCo | Superior temperature stability (up to 500°C), high residual induction | Precision position sensors, piezoelectric actuators |
- High Magnetic Energy Density - (BH)max up to 55 MGOe (228 kJ/m³), enabling miniaturization of high-torque motors
- Superior Anti-Demagnetization - HcJ up to 3259 kA/m, maintaining ≥95% performance after 10,000 thermal cycles
- Thermal Stability - Operates reliably from -60°C to 350°C, suitable for extreme industrial environments
- Dynamic Fatigue Resistance - Withstands 10^8 cycles of high-speed rotation without performance degradation
Custom Motors & Actuators Magnet Solutions
We support full-cycle customization from design to mass production, adapting to your specific motion control and regulatory requirements.
Customization scope
Shape & Size Customization
Discs, rings, arc segments, and complex pole geometries (Ø0.1mm-100mm) - Tolerance: ±0.003mm (precision grade) to ±0.1mm
Coating Customization
Ni-Cu-Ni plating, Zn coating, epoxy encapsulation - Compliant with IATF 16949 corrosion resistance standards
Performance Customization
Magnetic energy product, coercivity, and temperature resistance tailored to your motor’s operating conditions
Production and delivery capabilities
✅ Monthly Production Capacity: 500,000+ pieces of motor-grade magnets
✅ Sample Delivery: 2-4 working days (custom prototypes available)
✅ Mass Production Lead Time: 10-20 working days (depending on quantity)
✅ MOQ: 100 pieces (small-batch trial orders supported for prototype validation)
Quality Certification and Testing
Magnetic Flux Density Testing
Coercivity (HcJ) Testing
Thermal Stability Testing (-60°C to 350°C)
Corrosion Resistance Testing (Salt Spray Test ≥72h)
Dynamic Vibration & Shock Testing
Magnetic Homogeneity Testing
