The best choice is solid rotor technology

It’s simple. Eliminate the gearbox and gain adjustable speed for all turbo applications. A solid rotor induction motor is a type of induction machine with a non-laminated rotor construction. The advantage of the stiff construction is unmatched stability and balance, which offers exceptional rotating system reliability for all types of turbo applications.

Solid rotor induction motors – up to 15,000 rpm

Solid rotor induction motors – up to 15,000 rpm

The Switch turbo induction motors replace a mechanical gearbox by an electrical one to give you full speed control for your system. By integrating an electrical motor with the load machinery, you get unmatched space and weight savings.

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The Switch complete turbo drive package

  • Available as a rotor or a motor
  • Up to 15,000 rpm
  • Shaft heights: 315, 355 or 400
  • Drives: 400 V and 690 V, liquid- or air-cooled
  • Both motor and drive up to 12 MW
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Custom-built for the challenge

Every high-speed solid rotor induction motor is engineered or customized for a specific end use. The end results speak for themselves in:

  • Fans and turbo blowers
  • Vacuum drives in paper machines
  • Turbo generators
  • Compressors
  • Pumps


MAN Energy Solutions SE, Switzerland

Swiss MAN Energy Solutions chose The Switch integrated motor for a high-power compressor of 8 MW, 10,000–12,000 rpm to be used in a gas application that survives subsea installation with aggressive gases.

Runtech, Finland

Runtech of Finland is placing continuous volume orders for high-speed solid rotor induction motors and The Switch drives to be used in its paper machine vacuum systems that are run at over 10,000 rpm.

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FIMA, Germany

German FIMA Maschinenbau GmbH, the first chemical industry reference for The Switch, ordered a series of 200 kW high-speed motors for turbo blowers with a speed of nearly 11,000 rpm.