Stator-based field coil
The field coil is moved to the stator, allowing controlled magnetisation of the salient-pole rotor without rotor windings or slip rings.
PolyWavePower’s patented Stationary Field Synchronous Motor removes permanent magnets, slip rings and rotor windings—creating a simpler, highly efficient platform for strategic industrial electrification.

The SFSM responds to the need for efficient motor technology that is less exposed to rare-earth supply chains, volatile pricing and complex high-power electronics.
The field coil is moved to the stator, allowing controlled magnetisation of the salient-pole rotor without rotor windings or slip rings.
Field-current adjustment supports lower current draw and strong power-factor performance over a wide operating range.
For synchronous operation, minimal low-power electronics manage the DC field, while conventional drives can support variable-speed applications.

The technology uses widely available steel, copper and aluminium rather than rare-earth permanent magnets. Its pre-assembled stator components are designed to support efficient manual or robotic assembly.
Wind, hydro, micro-grids and backup generation.
Pumps, conveyors, compressors, crushers, hoists and ventilation.
EV drives, rail traction, buses, forklifts and heavy mobility.
Quiet propulsion, thrusters, winches, pumps and generators.
UAV, eVTOL, auxiliary power units and actuators.
Rare-earth-free propulsion for tactical and surveillance platforms.
Referenced testing shows the rotor maintaining synchronism with the rotating magnetic field once synchronised, with adjustable field current and operation close to unity power factor across a broad load range.
Review verification
PolyWavePower is engaging capable strategic purchasers and licensing partners for its global SFSM patent portfolio and engineering package.