Patented Motor Technology
Six patented technologies in one motor architecture — the highest torque-density electric motor available, built for drones, UAVs, aviation, EVs and robotics.
Six technologies, one motor
Every eMotres motor integrates the same six innovations — four production-proven, plus two patented firsts at the coil — that together push torque density beyond what conventional designs can achieve.
Tangential Magnet Polarization
Flux concentration beyond standard Halbach arrays — no adhesive, easy re-magnetization.
Rectangular Copper Wire
~75% slot fill factor vs ~35% for round wire — lower resistance, higher current density, less heat.
High-Efficiency Cooling System
Yoke cutouts give cooling the shortest possible path from winding to ambient — air or liquid.
Single Layer Winding
2× fewer coils than standard designs — less winding time, lower cost, higher reliability.
Foil Coil Technology
In development nowCopper & aluminium foil-coil prototypes
Single-piece flat-sheet coil — zero welded joints, eliminated eddy-current loss points, increased fill factor.
Why it matters: No welds means fewer eddy-current loss points, and standard cut-and-bend tooling makes the coil mass-production ready.
Ceramic Coil Insulation
Al₂O₃ ceramic insulation plates
3-sided heat transfer — ≥100× higher thermal conductivity vs polymer. Enables fully sealed IP65 construction.
Why it matters: Three-sided coupling (vs two-sided) insulates and conducts heat at once, enabling higher current density at a lower coil temperature.
One architecture, two cooling options
The same sealed stator works with air or liquid cooling without a redesign — choose the medium that fits the duty cycle.
💨 Air cooling
- ✓Centrifugal fan draws air through the yoke cutouts
- ✓Effective for most drone and aviation applications
- ✓Simpler installation — no liquid lines or manifolds
- ✓Suitable for open or IP65-sealed configurations
- ✓Operational range up to ~60 °C ambient
💧 Liquid cooling
- ✓Coolant manifold attached directly to the yoke cutouts
- ✓2–5× lower thermal resistance vs air cooling
- ✓Enables continuous high-power operation
- ✓Required for motors above 10 kW continuous
- ✓Compatible with water-glycol or oil circuits
IP65: complete protection against dust ingress and low-pressure water jets from any direction — available as a factory option on all CIANO motors.
Patent portfolio
9 granted / registered · 4 pending · 6 jurisdictions · EPO inventive step confirmed.
✓ Granted / registered
⏳ Pending / under examination
The European Patent Office independently validated the novelty and inventive step of the AeroStator Core™ topology.