LEKFS*E High Rigidity Slider, Ball Screw Drive, Battery-less Absolute Encoder

The rodless LEKFS*E slider is an electric actuator with a load mounting platform situated above a ball screw drive.  A flexible seal band permits platform travel while preventing foreign matter from entering the drive.  Slider advantages include a low profile height, shorter length than a rod with equivalent stroke, and better positioning repeatability than a belt driven slider.  LEKFS*E includes a redesigned guide with 4 rows of steel balls instead of 2, improving both allowable moment rigidity and positioning repeatability.  Additional enhancements vs. the LEFS include auto switch mounting grooves, improved dustproof performance with magnetic seal band adhesion, standard positioning pin holes and drop-in upgrade replacement vs. LEFS.  The LEKFS*E also features a 24VDC motor with a battery-less absolute encoder.  This encoder allows the actuator to be powered down without losing its positional awareness.  The machine's PLC can access the controller's operational and positional step data through several fieldbus protocols, IO-Link or parallel I/O.

  • Body sizes: 16, 25, 32, 40
  • Maximum work load: 65 kg
  • Maximum speed: 1200 mm/s
  • Stroke range: 50 to 500mm in 50mm increments, 600-1200mm in 100mm increments
  • Positioning repeatability: ±0.01mm, or ±0.02mm (high speed screw lead)
  • Dynamic allowable moment: 8-61% improved vs. LEFS (size and axis dependent)
LEKFS*E High Rigidity Slider, Ball Screw Drive, Battery-less Absolute Encoder
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.
Series Configuration Status
Size Configuration Status
Motor Mounting Position Configuration Status
Motor Type Configuration Status
Lead Configuration Status
Stroke Configuration Status
Motor Option Configuration Status
Seal Band Stopper Configuration Status
Actuator Cable Type, Length Configuration Status
Controller Configuration Status
Controller Mounting Configuration Status
Communication Plug Connector, I/O Cable 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