Axial Flux Electric Motors: A Revolutionary Approach

 

Evolito’s axial flux motors are revolutionising aerospace with their unprecedented compactness and lightweight design.

 

Our e-motors deliver superior torque and power densities, with optimised efficiency at propulsion speeds.

Key Benefits

 

Innovative Technology:

Axial Flux electric motors feature a yokeless design and segmented magnet architecture to reduce weight, improve reliability and increase performance.

Versatile Variations:

Our motors are available in 1×3 and true 2×3 phase variations for enhanced safety.

Exceptional Specifications:

D250 model: Peak specific torque of ~16Nm/kg, ~13kg weight, ∅370mm x 125mm dimensions.
D1700 model: Peak specific torque of ~56Nm/kg, designed for high torque, low-speed direct drive applications.

Enhanced Efficiency:

Direct drive suitability simplifies system architecture, reduces weight, and boosts overall efficiency.

Our Axial Flux Products

Our electric axial flux motors are suitable across the aerospace sector, for rotorcraft applications such as eVTOLs, UAMs, Helicopters, as well as single or multi-propeller fixed-wing, general aviation aircraft.

D250: Low Torque, High Speed

Our D250 motors are designed for both low torque and high speed applications, and can be coupled with a reduction stage to achieve required torque propellor speeds, or directly matched to propellor speeds, removing the need for a reduction stage for lower power applications.

The compact design is ideal for aircraft where either low speed, low power or high speed and high power is required, from a very low mass electric motor.

The D250 features best in class peak specific torque of ~16Nm/kg, within the compact design that weighs only ~13kg and measuring ∅370mm x 125mm, enabling architectures with challenging packaging requirements.

  • D250 1x3 Specification

    D250 1x3 Specification

    Peak Torque (30s):
    230Nm
    169lb-ft
    Peak Power (30s):
    230kW @ 9,500rpm
    312hp
    Continuous torque:
    208Nm
    208Nm
    Continuous power:
    207kW @ 9500rpm
    281hp
    Max speed:
    10,000rpm
    10,000r
    Mass:
    ~13kg
    ~29lbs
    Size:
    ∅370mm x 125mm
    ∅14.5″ x 5
    Cooling medium:
    Dielectric Oil
    Dielectric Oil
    Cooling fluid volume:
    0.5l
    17.6ft.oz
    Intended altitude:
    Up to 15.240m
    Up to 50,000ft

     

    D250 1x3 Axial Flux Electric Motor
  • D250 2x3 Specification

    D250 2x3 Specification

     

    Peak Torque (30 seconds):
    222 Nm
    Peak Power (30 seconds):
    223 kW @ 9600 rpm
    Maximum Cruise Torque (continuous):
    202 Nm
    Maximum Cruise Power (continuous):
    203 kW @ 9600 rpm
    Max Speed:
    10,000 rpm
    Mass (without covers):
    8.3 kg
    Size (without covers):
    315 mm (D) x 126 mm (L)

    Evolito D250 Axial Flux Motor

D500: Mid Torque, Mid Speed

Our D500 motors are designed for both mid torque and mid speed applications, and can be coupled with a reduction stage to achieve required torque propellor speeds. Additionally, the D500 can be directly matched to propellor speeds, without the need for a reduction stage for lower power applications.

The D500 features leading power density of 12 kW/kg. The compact design of Evolito’s axial flux motor means the dimensions are just 375mm (D) x 128mm (L), with a low mass of ~30kg.

The D500 can be stacked for increased torque and power up to 1 megawatt.

D1700: For high torque, low speed.

Our D1700 motors are designed for high torque, low speed applications where the motor is connected directly to a propellor, without a reduction stage.

The D1700 features best in class peak specific torque of ~56Nm/kg, where dimensions are ∅450mm (D) x 170mm (L).

The D1700 has evolved from a flight proven pedigree with over 1000+ hours of inflight testing.

  • D1700 2x3 Specification

    D1700 2x3 Specification

     

    Peak torque (30s):
    1700Nm
    1254lb-ft
    Peak power (30s):
    350kW @ 2000rpm
    470hp
    Continuous torque
    1500Nm
    1106lb-ft
    Continuous power:
    250kW @ 1600rpm
    335hp
    Max speed:
    2500rpm
    2500rpm
    Mass:
    ~40kg
    ~66lbs
    Size:
    ∅450mm x 170mm
    ∅17.7″ x 6.7″
    Cooling medium:
    Dielectric Oil
    Dielectric Oil
    Cooling fluid volume:
    0.7l
    24.6ft.oz
    Intended altitude:
    Up to 15,240m
    Up to 50,000ft
    Evolito D1500 2x3 Axial Flux Motor

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