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Valve Actuator · Limitorque

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SMB Series


The SMB Series is a valve actuator with many achievements in the industrial base of fields such as thermal and nuclear power plants.
High performance is maintained for a long period of time through strong materials, highly accurate processing, design with high margin, and protection features.
With 8 kinds of unit size and a variety of reduction gear ratio, torque ranges of up to 27,000 N/m are covered.
You can specify a protection type according to your installation conditions, such as outdoor (standard), explosion-proof, and water-proof types.


  • Manual/Electric switch feature (automatic recovery)
  • Highly accurate geared limit switch
  • Highly functional torque switch
  • Optimized motor
  • Complete control function
  • Highly durable gear train
  • Easy maintenance

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