17 % Cobalt-Iron - VACOFLUX X1

Specifically Developed and Optimized for Electric Motor Applications

VACOFLUX® X1 was specifically developed for the use in electric motor applications and to close the gap between silicon-iron and 49 % cobalt-iron alloys. Motors using the 17 % cobalt-iron alloy VACOFLUX X1 will be considerably better performing than with electrical steel, however they will also be considerably cheaper than motor designs based on 49 % cobalt-iron. 

Benefits:

  • High saturation polarization
  • Reduced cobalt content compared to 49 % CoFe material
  • Optimized for stamping & interlocking
  • Strip thickness down to 0.1 mm (stamped) and 0.2 mm (interlocked)

Electric Motors for

  • Aerospace
  • Electric Vehicles
  • Industrial Drives
  • E-Bikes

Comparative study by drivetek AG - VACODUR 49 vs. NO20 vs. VACOFLUX X1

The starting point of the study is the specification of a traction machine with an output of 250 kW, which is available from a speed of 4,775 1/min.

The key data of the machine are:

    Maximum speed - 15,000 rpm
    Maximum torque - 499 Nm
    Mmaximal power - 250 kW
    Outer diameter of stator - 240 mm
    Active length - 215 mm
    Current at maximum torque - 400 Arms
    Terminal voltage - 499 Vrms p-p

Increasing the phase current, will result in a torque increase of 12.5 %.

 

Electric Motors for

  • Aerospace
  • Electric Vehicles
  • Industrial Drives
  • E-Bikes

Comparative study by drivetek AG - VACODUR 49 vs. NO20 vs. VACOFLUX X1

The starting point of the study is the specification of a traction machine with an output of 250 kW, which is available from a speed of 4,775 1/min.

The key data of the machine are:

    Maximum speed - 15,000 rpm
    Maximum torque - 499 Nm
    Mmaximal power - 250 kW
    Outer diameter of stator - 240 mm
    Active length - 215 mm
    Current at maximum torque - 400 Arms
    Terminal voltage - 499 Vrms p-p

Increasing the phase current, will result in a torque increase of 12.5 %.

 

Material Properties

Saturation
polarization
JS [T]
Maximum
permeability
µmax

Coercivity
HC [A/cm]

Electrical
resistivity
ρel [µΩm]
Density
ρ [g/cm3]

Saturation magneto-
striction
λS [ppm]

Curie
temperature
TC [°C]
2.22 > 10,000 50 0.3 7.90 +25 940

Downloads

Lamination Stacks made of VACOFLUX X1

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drivetek motor using VACOFLUX X1

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Motor Optimization with Cost Optimized CoFe

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Related Products

Interlocked Stack made of Cobalt-Iron

Lamination Stacks

Lamination stacks are packages using single laminations separated by electrical insulating layers to surpress eddy current losses during dynamic magnetic load.

Lamination Stacks
Interlocked Stack and Single Laminations made of CoFe

49 % Cobalt-Iron

Thanks to their high magnetic saturation of up to 2.4 T, the cobalt-iron (CoFe) alloys VACOFLUX and VACODUR are generally suitable for all applications where high flux density and minimum weight are required. They are offering best possible parameters for highest performance electric motors/generators and magnetic actuators.

49 % Cobalt-Iron
Rod and magnetic actuator made of CeFe

9 to 27 % Cobalt-Iron

The low cobalt content VACOFLUX qualities were developed to offer
an attractive price level for well defined applications

9 to 27 % Cobalt-Iron

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