AEM Titan Motor Delivers 700 kW Without Rare Earths
Advanced Electric Machines details its largest rare earth-free motor, rated at 700 kW peak power, with samples expected in 2027.
Key points
- The Titan motor is rated at 700 kW peak power and 5,000 Nm torque without using rare earth magnets.
- First physical samples are not expected until the third quarter of 2027, despite the detailed design.
- The company has not disclosed efficiency figures or the specific magnetic principle used in the motor.
Advanced Electric Machines has released the first specific performance data for its Titan heavy-duty electric motor. The British manufacturer rates the unit at 700 kW of peak power and 5,000 Nm of torque, marking a significant step for its rare earth-free technology line. For continuous operation, the motor is rated at 500 kW and 3,500 Nm, operating at a maximum speed of 4,000 rpm.
The decision to exclude permanent magnets eliminates the need for rare earth elements, which are often subject to supply chain volatility and ethical sourcing concerns. As noted in reports by Charged EVs, this design choice also removes the risk of demagnetization at high temperatures. Additionally, the motor does not produce cogging torque at high speeds, allowing for smoother operation and a freewheeling function that reduces energy consumption during coasting.
Engineering trade-offs in magnetic design
While the magnet-less design improves thermal stability and safety, the company has not yet published efficiency figures. AEM has also declined to explain the specific motor principle behind its HDRM technology, leaving the underlying physics opaque to industry observers. The motor’s dry weight of roughly 200 kg and extruded housing allow for various lengths and shaft configurations, but the lack of efficiency data makes it difficult to compare its energy consumption against conventional magnet-based competitors.
Timeline and market availability
The Titan motor currently exists as a detailed 3D concept rather than a physical prototype. Advanced Electric Machines expects to deliver first samples to customers in the third quarter of 2027. This development is part of a broader £16 million investment in electric powertrain technologies, signaling a long-term commitment to the platform despite the delay in physical availability.
Smaller units for off-highway use
Alongside the flagship Titan, AEM is offering a smaller, integrated drive unit that pairs the HDRM150 motor with an air-cooled inverter. This drop-in solution operates at up to 700 V and exceeds 30 kW peak output. By removing the need for complex coolant circuits and pumps, this unit is lighter and easier to maintain, targeting ancillary applications in off-highway machinery where simplicity is a priority.
