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Siemens Combustion Controls – Control Motor SQM40/41 Synchro

Cost effective modulating actuator with up to 90 in-lbs and 12 or 25 second drive times for 90 degrees


Suited for driving oil pressure controller, butterfly valves, dampers or for use on other applications that require rotary motion. Areas of application are oil and gas burners of medium to higher capacity as well as thermal process plants.


  • Electromotoric actuator up to 18 Nm torque
  • Clockwise and counterclockwise variants
  • Running times from 5 to 65 seconds
  • Different shaft ends available
  • Electronic version with analog control input
  • Internal position indication
  • Drive shaft can be disengaged
  • Variants with UL and CSA approval, as well as GL marine approval


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