In industries where e-drive applications demand high torque, power, and efficiency—often within tight space and weight constraints—manufacturers must look beyond conventional development paths to stay competitive. For cars, buses, and e-bikes, range and motor performance are critical, and every millimeter and gram counts.
FRING Powder Metallurgy has risen to the challenge by developing and validating a transverse flux motor (TFM) design that delivers the highest torque density in a compact system. The secret behind this high-performance e-motor lies in its 3D architecture, enabled by soft magnetic composite (SMC) materials, resulting in a small, cost-efficient system with superior efficiency.
Proven success: from e-bike validation to broader applications
The TFM technology was first validated in a 250W e-bike application, tested both on the rig and on the road. The results were compelling, outperforming conventional rear hub e-motors:
- 20% higher peak torque
- 40% higher constant torque
- 20% greater battery range on e-bike driving cycles
- 20% smaller motor diameter
This validation proves that compact, high-torque SMC-based motors are not just a concept—they are a practical, superior solution.
Key application advantages of TFM
FRING’s TFM delivers incomparable benefits for e-drive applications:
- Higher torque and extended power capability
- Superior efficiency profile – double the high-load efficiency rate of conventional motors
- Unique design freedom – enabling flexible packaging and more compact systems
- Simplified winding technology – supporting cost-efficient production across various volumes
- SMC material expertise – FRING’s advanced pressing capabilities produce complex, high-density 3D stator parts
Scalable performance for more powerful motors
While the benefits are clear for a 250W e-bike motor, the TFM technology can be scaled to higher power levels.
For example, the same Ø130mm motor can be scaled up to 3kW constant power by adapting coils and motor speeds. This creates flexible design options—allowing the same basic motor layout to address a wide range of applications.
As torque demands increase (e.g., 400Nm to 800Nm), the TFM’s advantages in size and weight reduction become even more pronounced. This makes TFM the essential choice for all compact, lightweight drives requiring high performance.
Why partner with FRING Powder Metallurgy?
FRING continues to leverage its deep background in product development and series production to lead the industry in validating benchmark technologies. By choosing FRING as your partner, you benefit from:
- A global R&D team dedicated to customer support and material development
- Full development cycle support – from concept to production
- In-house generation and optimization of 3D e-motor designs
- Cost-efficient design approach for series production transfer
- Prototype building and testing
- Reduced development costs
Manufacturer benefits at a glance
- Longstanding expertise in product development and mass production
- Advanced research in transverse flux motors for mobility applications
- Dedicated support in SMC material advancement and e-motor design
FRING Powder Metallurgy: Compact power. Scalable performance. Proven results.