11-LEJS, High Rigidity Ball Screw Slider, Wide Body, AC Servo Motor, Clean Room

The 11-LEJS is the clean room version of SMC's LEJS 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.  Optional drivers include pulse input and various communication protocols including Ethernet.  Some option standard with LEJS are not offered with the 11-LEJS.  Please consult the catalog for more information.


  • ISO Class 4 / US FED STD 209E Class 10
  • Body sizes: 40, 63
  • Maximum work load: 85 kg
  • Maximum speed: 1800 mm/s (H lead)
  • Stroke range: 200 to 1500mm in 100mm 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-LEJS, High Rigidity Ball Screw Slider, Wide Body, AC Servo Motor, Clean Room
Configuration Options
Copy Configuration Number

Product Options

Select Product Options
Select values from the drop down lists or make appropriate selections to configure the part number.
Accuracy Configuration Status
Size Configuration Status
Motor Type Configuration Status
Lead [mm] Configuration Status
Stroke Configuration Status
Motor Option Configuration Status
Vacuum Port Configuration Status
Cable Type Configuration Status
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.


The part number needs to be complete in order to view/download CAD Models.

Model does not exist, please email cad@smcusa.com with the complete part number, CAD file format and version required.

CAD Downloads

Download CAD File

View CAD Models

View 3D Model

Product Catalog

Series Catalog

RoHS Certificate

Download Certificate