Eliminates rare earth dependency
Removes reliance on critical materials with volatile pricing and constrained global supply chains
A New Architecture for High-Performance Electric Motors
Torev is developing a new class of electric motors that eliminates rare-earth permanent magnets while maintaining the performance characteristics required for next-generation mobility and defense systems.
Our approach combines:
- Axial flux architecture for high torque density and compact form factor
- Externally excited synchronous motor (EESM) topology to eliminate rare earth materials
- Advanced cooling systems to enable sustained high-power output
Together, these innovations create a motor platform designed for performance, scalability, and supply chain resilience.
Why This Approach Matters
Enables high torque density in a compact footprint
Axial flux geometry allows for shorter axial length and improved packaging flexibility
Designed for high-performance applications
Architecture supports demanding use cases across automotive, aerospace, and defense
Built for scalability
Modular design principles allow adaptation across multiple power levels and platforms
Why it works — More magnetic surface area in axial flux geometry increases torque density, and coils are substitutes for permanent magnets
| Benefit | Relevance |
|---|---|
| No magnets | No magnet supply chain volatility |
| Rotor field control | Fully programmable performance |
| High Torque Density | Reduced weight. Improved packaging |
| High efficiency | Extended operating range |
| Heat Resistance | No demagnetization risk from high temperature |
Architecture Overview
Axial Flux Design
Unlike traditional radial flux motors, Torev's motors use an axial magnetic flux path, enabling a more compact and higher torque-density configuration.
Externally Excited (Magnet-Free) Rotor
Instead of permanent magnets, Torev uses electromagnetic fields to generate the rotor field. This approach:
- Eliminates rare earth materials
- Allows dynamic control of the magnetic field
- Reduces exposure to material supply constraints
- Expands efficiency maps
Advanced Cooling Systems
Thermal management is critical for high-performance electric motors. Torev is developing:
- Oil-cooled systems for high-power automotive and defense applications
- Air-cooled systems for lightweight aerospace and drone use cases
Development Progress
Torev is actively advancing multiple motor platforms in parallel:
15 kW Oil-Cooled Axial Flux EESM
- Functional prototype developed, built and tested
- Demonstrates core architecture and innovative oil-cooled thermal solution
- Used for early validation and testing
15 kW Air-Cooled Motor (In Development)
- Designed for drones and small mobility applications
- Focused on lightweight, high-efficiency operation
- Expanding the platform into new verticals
150 kW Oil-Cooled Motor (Flagship Platform)
- Currently in design and development
- Built for automotive and defense applications
- Planned pilot testing and vehicle integration upcoming
How Torev Differs
| Item | Torev Boost Motor | Industry Standard Radial Flux Motor |
|---|---|---|
| Magnet Content (kg) | 0 kg | ~2.5 kg |
| Field Control | Yes | No |
| Torque Density (Nm/kg) | 12 | 8.6 |
| Peak Efficiency | 96% | 96% |
*Performance characteristics depend on application and system design.
Designed for Demanding Applications
Torev's technology is being developed with high-performance use cases in mind, including:
We are actively collaborating with the U.S. Army Ground Vehicle Systems Center on R&D efforts to advance next-generation electric propulsion technologies.
Automotive
Next-gen electric vehicles require motors that balance performance, cost, and scalability—without long-term supply chain risk.
Defense
Mission-critical systems demand reliability, domestic supply chains, and independence from constrained materials.
Built for the Next Generation of Electrification
As electrification accelerates across industries, the need for high-performance, scalable, and supply chain-resilient motor technologies is increasing.
Torev is building a platform designed to meet that need — combining engineering innovation with practical deployment pathways across multiple sectors.
