Always providing the right spin at precisely the right time


Whether for machine tools, extruder worms or paper rolls – SIMOTICS slow speed permanent-magnet torque motors represent an attractive solution for driving all rotary axis types. They can be completely integrated in machines, without requiring mechanical transmission elements. This reduces the space required, provides maximum flexibility when integrating the motors, minimizes maintenance costs and maximizes availability. Further, the direct mechanical connection results in an increased dynamic performance and control quality in the overall system and ensures a high torque at the optimum speed with high precision – resulting in highly productive machines. Depending on the application, you have the choice between two motor types.

Quickly and simply configure and order SIMOTICS T-1FW3 and T-1FW6 torque motors

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SIMOTICS T Product overview

SIMOTICS torque motors – highest precision for rotary axes

Motors for special requirements

Lower Operating Costs - Higher Availability

The SIMOTICS HT Series HT-direct high-torque motors are permanent-magnet synchronous motors that can provide high torques at low speeds directly at the driven machine. High efficiencies and good power factors can also be achieved at low speeds as a result of the permanent magnet rotors.

Compact, dynamic and rugged

Industrial machining processes involving the application of large forces call for powerful and rugged drive systems. The SIMOTICS T series of heavy-duty motors from Siemens 
are tough direct drives that meet these requirements and have proven their value, especially in metal forming applications. The existing heavy-duty motor family has been supplemented by the SIMOTICS T-1FW4 heavy-duty motor to allow presses to be built in all sizes. 
The powerful, permanent-magnet-excited synchronous motors set themselves apart with their high dynamic response and precision. In addition, the motors have a mechanical 
design that is especially rugged, enabling them to resist shocks of the order of 10 g without any difficulty. 
Thus, heavy-duty torque motors are perfectly suited to track the highly sophisticated dynamic movement profiles of high-level Motion Control controllers even under harsh operating conditions.

SIMOTICS T system overview

An overview of the technology

*depending on the version and type
T-1FW3 complete torque motor
T-1FW6 built-in torque motor
Rated torque *
up to 7.000 Nm
up to 5.760 Nm
Rated speed *
up to 1.200 U/min
up to 1.060 U/min
Maximum speed *
up to 1.800 U/min
up to 3.000 U/min
Maximum torque *
11.000 Nm
10.900 Nm

SIMOTICS T benefits & applications

  • Highest precision, power and dynamic performance
  • Various application-specific versions
  • Direct controllability; no elasticities in the drive train
  • Low space requirement and simplified maintenance as the motor can be directly integrated into the machine structure without having to use mechanical transmission elements
  • High number of poles for high torques at low speeds
  • Short acceleration times and very high smooth running characteristics
  • High degree of efficiency
  • High degree of availability


  • Rolling mill drives
  • Paper machines
  • Plastic injection molding machines
  • Handling and assembly systems
  • Servo presses
  • Rotary indexing machines
  • Rotary indexing tables and partial machines
  • Rotary axes (A/B/C for 5-axis machining centers)
  • Workpiece spindles
  • Roll and cylinder drives
  • Test stands
SIMOTICS T Downloads and Support

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Simply configure and order

Configure and order your SIMOTICS T

You can easily and quickly configure the SIMOTICS T torque motors with the Siemens Drive configurator and then order it via the IndustyMall ordering system.

Configure and order SIMOTICS T torque motors quickly and easily

Configure online