Punch Powertrain, a global provider of innovative propulsion solutions, and Traxial, a technology leader in high–performance yokeless axial flux electric motor technology, successfully completed a joint high-performance test campaign in May 2025. The goal was to validate the technical compatibility and performance of their latest cutting-edge propulsion technology under high-demand operating conditions.  

This collaboration paired: 

• Punch Powertrain’s IV5 800V Silicon Carbide (SiC) inverter — a compact, high-frequency, high-power inverter scalable up to 400 kW 

• Traxial’s next-generation axial flux electric motor — a compact, high torque and power dense electric motor, that delivers 300kW peak and 270kW continuous at maximum speed  

Maximum Power (kW) : 310 kW   

Maximum Torque (Nm.): 730 Nm (700 Arms) or 600 Nm (500 Arms)  

Joint Milestone Achieved — Tests Completed Ahead of Schedule 

All planned testing activities were successfully completed one week earlier than scheduled, with zero faults or system limitations. This reflects:  

• The excellent preparation and close collaboration across system, Power Electronics, validation and software teams from both companies.   

• The maturity of the products to ensure a smooth integration and fulfilling performance expectations. 

• The excellence in operation with the right competencies at the right place to overcome this integration challenge.
   

Key Test Results 

These results confirm the high level of maturity and real-world readiness of both systems under rigorous electrical and thermal operating conditions

System Synergy and Integration Benefits 

The pairing of Punch Powertrain’s IV5 inverter and Traxial’s axial flux motor offers: 

• Extremely short build lengths, enabling compact co-axial drivetrains 

• High power density, with potential to reach ~6 kW/kg in twin-motor torque vectoring configurations 

• Robust thermal management, with no derating across full performance range 

Application Fit 

This compact and high-performance system is ideal for: 

• Plug-in hybrid (PHEV) vehicles at both 400V and 800V levels 

• Twin-motor electric drive units (EDUs) with torque vectoring in space-constrained platforms 

• Electric commercial vehicles (eCVs) requiring compact, high-torque solutions within e-axles, supporting ≥1000 Nm per ton performance demands for heavy-duty (20–40 ton) applications 

Validation of Engineering Readiness 

Following a successful stand-alone inverter testing campaign covering functionality, EMC, and reliability, the complete system was operated at full power using an internally developed silicon carbide inverter. 

The AXF300-85s motor is the latest product launch by Traxial, designed for single and multi-motor architectures. After completing the A-Sample validation and reaching the 300,000km durability milestone with an internally developed silicon carbide inverter.  

These results mark a solid step forward in building compact and powerful systems that support the shift to cleaner mobility. Punch Powertrain and Traxial continue to promote their technologies as components, subsystems, or complete propulsion solutions for OEMs worldwide. 

This collaboration between two Belgian technology leaders highlights the strength of local innovation driving global electrification efforts. 

Get the technical data sheet of our latest axial flux motor, the AXF300-85s

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