Tresa

Tresa Motors

FLUX 350

Flux 350: India's first High Performance Axial Flux Motor

FLUX 350 stator render

AXIAL FLUX
PMSM MOTOR

FLUX 350 is a permanent-magnet synchronous motor family from Tresa, rated for a sustained 350kW and built around an axial flux layout that packs more output into less space.

Engineered entirely in-house, it is a liquid-cooled unit that can be stacked for higher outputs. Mounted directly in the axles of our trucks, these motors move loads of up to 55T without breaking a sweat.

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FLUX 350 rotor and copper windings

WHAT ARE

AXIAL FLUX MOTORS

In an axial flux machine the magnetic field runs along the shaft rather than outward from it. Turning the field through ninety degrees gives a flat, disc-shaped motor with a short magnetic path and an unusually high torque for its weight. Only a small number of companies in the world build them.

The basic recipe is a stack of thin discs: stators carrying the copper windings sit between rotors that hold the magnets. Because each disc is slim, designers can add or remove layers to scale output while keeping the package compact.

That geometry brings real benefits — dense power, short heat paths that are easy to cool, and efficiency gains over conventional radial designs — which is why axial flux motors are spreading into electric vehicles, aerospace, robotics and wind energy.

FLUX 350 PLATFORM

SpecValue
POWER350kW Continuous
TORQUE24000 Nm on Wheels
EFFICIENCY~92%
REGENYes
Anti Hill-Roll LockMechanical
CoolingLiquid
TopologyAxial

A flat, axial flux platform that squeezes very high power into a slim package, sustaining up to 350kW without derating.

CNC machining a FLUX 350 housing
Laminated stator segments in hand
Machining the FLUX 350 rotor

Our current revision (RJ1) runs at 92% efficiency, and we want to find another 3–4%. Think you can help us get there?