FG270 Coaxial Flat
Motor Series Product

FG270 is a coaxial flat motor composed of a permanent magnet inner rotor and a single-tooth winding stator. Its performance is significantly higher than that of well-known competitors in the market. It has compact mechanical design, expandable production, small torque fluctuation, high work efficiency, low raw material cost, and the supplier system is mature.
FG270 has a very short axial dimension and is easy to integrate with the power transmission system. It is especially suitable for the P2 hybrid power system. It is currently the only mass-produced coaxial flat motor that can be used in the P2 hybrid configuration in China. With the explosive growth in sales of P2 hybrid models, this motor will give priority to seizing the market with mature technology and excellent cost performance.

Product introduction  >
  • Casing inner sleeve

  • stator winding

  • Insulating support

  • Rotor core lamination

  • Insulating framework

  • Split core

  • Insulating framework

  • High pressure components

  • Slip ring

  • Permanent magnet steel

  • FG270/33

  • FG270/55

  • FG270/77

Effective length
Alternating current
Busbar voltage
Peak torque (10s)
Peak power (10s)

Effective length
Alternating current
Busbar voltage
Peak torque (10s)
Peak power (10s)

Effective length
Alternating current
Busbar voltage
Peak torque (10s)
Peak power (10s)


The stator adopts a split core structure with high slot full rate and high efficiency, which is convenient for mass production

The production line occupies a small area, the cost of raw materials is low, and the supplier system is mature

The mechanical design is compact. The product deforms easily. The production can be expanded.

The stator adopts a concentrated winding structure with short winding ends

The stator end windings potting, good heat dissipation, higher continuous power and torque output

Rotor anti-demagnetization permanent magnet steel design, safe and reliable

Water-cooled chassis, high power torque density

Customer revenue

The output torque can be increased by increasing the axial length

Flexible supply method, can provide complete machine or stator and rotor parts

Control and optimize vibration and noise

Professional electromagnetic compatibility

High power torque density

Ultra-high product consistency

Local development team, fast and flexible customer support

  • R & D strength
  • Core process
  • Manufacturing

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    High efficiency / Low losses

    Double/Multi-magnet layout has advantage to decrease the harmonic core losses

    PIN flat wire can increase remarkably the slot factor

    Multi-PIN design(6-8PIN)depress the skin and proximity effect

    High flat ratio design for high efficiency at speed area

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    Small Torque ripple Low Noise

    Double/Multi-magnet layout have good chance to reduce tangential / radial force fluctuation

    Short pitch winding strongly decrease 6P torque ripple

    V-Step skewing can efficiently reduce acoustic noise

    Harmonic slot design on the surface of rotor

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    Genetic Algorithm optimization

    EMAG Genetic Algorithm Optimizer(EGAO):

    Interface to FEA software

    Capable for handling thousands of generations

    The old population will be compared with the new population (after crossover, mutate, migrate…), the best cases will be selected

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    Round and hot

    Preheating, round and hot set technology integration

    The of the induction heating system

    Induction heating system is precision

    Roundness pressure equipment control system

    Customized into a circular grinding tool

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    Winding machine

    Automatic feeding system

    The size of the insulation frame and tension on-line control

    Insulation frame fracture prevention design

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    Potting system

    High quality, high precision control of the glue system

    Vacuum potting material and good traffi

    Preparation and automatic feeding system 24 hours a day

    The vacuum potting process control, ensure no bubble

    The data records of the all process is can be traced

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    The area and the investment

    The area of the first phase of production base: 16000 m²

    The total investment is approximately: 750 million yuan

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    Advanced production line

    The stability of the production line has been verified by the German Schaeffler Electric Drive Module Project

    Production line automation reaches 90%

    The import rate of production line equipment reaches 80%

    The production line has produced more than 10,000 products, the yield rate reached 99%, and customer complaints were 0%

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    Capacity planning

    capacity of phase I:

    Capacity:40,000 units/year

    SOP achieved

    Planning capacity for the second phase:

    Capacity:100,000 units/year

    Expected to achieve SOP in 2021