11-LEFS, Electric Actuator, Ball Screw Drive Slider, AC Servo Motor, Clean Room

The 11-LEFS is the clean room version of SMC's LEFS ball screw slider.  A built-in vacuum port is used to draw off particles generated by the ball screw and guide to achieve the ISO Class 4 standard.  This model is fitted with an AC servo motor with incremental or absolute encoder.  Pulse input drivers are available with optional communication protocols.  Some options standard with LEFS are not offered with the 11-LEFS.  Please consult the catalog for more information.


  • ISO Class 4 / US FED STD 209E Class 10
  • Body sizes: 25, 32, 40
  • Maximum work load: 60 kg
  • Maximum speed: 1000 mm/s
  • Stroke range: 50 to 1000mmin in 50mm increments
  • Positioning repeatability: ±0.02mm (±0.01mm high precision option)
  • Encoder resolution: 17-bit (S motors), 22-bit (T motors), 20-bit (V motors)
11-LEFS, Electric Actuator, Ball Screw Drive Slider, AC Servo Motor, Clean Room
Configuration Options
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Product Options

Select Product Options
Select values from the drop down lists or make appropriate selections to configure the part number.
Series Configuration Status
Accuracy Configuration Status
Size Configuration Status
Motor Type Configuration Status
Lead Configuration Status
Stroke Configuration Status
Motor Option Configuration Status
Vacuum Port Configuration Status
Actuator Cable Type Configuration Status
Actuator Cable Length Configuration Status
Driver Type Configuration Status
I/O Connector Configuration Status
Options in:
  • Gray are not compatible with other selected option value.
  • Red conflict with another selected option value.
  • Amber are not recommended.


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