HJA high-voltage modular asynchronous motors

Modular motors with the option of different types of cooling, shielding and optional expansions. Thanks to the use of high-quality materials, they ensure high reliability even in demanding stress cycles and, at the same time, minimum dimensions at the given outputs.

Premium technology

HJA motors are manufactured according to the latest development trends and contain first-class quality materials. Thanks to that, they can achieve the same power at a smaller size.

Testing under load

Each HJA motor manufactured has a test under full load included in the base price. Thanks to the load test, we can be sure that the motor will work well in your application.

Customized solution

We design our motors ourselves, so we are prepared to process most customer requirements. The motor can be larger, smaller, longer or shorter. Thanks to this service, substituting the motor in the application is very easy.

Product specifications

  • Power range: 150 to 6,000 kW

  • Axis height: 355 to 1,000 mm

  • Number of poles: 2 to24 poles

  • Rated voltage: 3 to 11 kV

  • Framework material: steel

  • Cooling: IC01, IC611, IC81W

  • Frequency: 50/60 Hz

  • Shielding: IP55 (optionally IP23)

  • Shape: Horizontal or vertical

  • Temperature class: F

  • Permanent load: S1

  • For ambient temperature: –20 to +40 °C.


We provide complete servicing, diagnostics and calibration of electric motors and generators.

Key services:

  • Installation
  • Commissioning
  • Preventive maintenance
  • Emergency services
  • Service contracts
  • Spare parts


We prepare our training courses so that they provide your employees with the necessary skills to take proper care of your equipment.

Key benefits:

  • Fast reactions and decision-making thanks to the knowledge of technology, activities and maintenance
  • Less downtime thanks to an improved equipment management and operation
  • Fewer maintenance issues
  • Better risk management thanks to the availability of trained staff


We offer a comprehensive range of expanding modules that will adapt motors directly to your application.

Key modules:

  • Electromagnetic brakes
  • Rotation sensors
  • Temperature and vibration sensors
  • External cooling
  • Secured bearings
  • Customized dimensions
  • Non-standard calibration
  • Adjustments for higher and lower ambient temperatures

We are continuously expanding our technical documents in order to respond to the needs of our customers faster: