Linear Positioner for Space-Restricted Applications


Parker’s Electromechanical Automation Division is pleased to announce the release of its MX45S linear positioner. The MX45S is a 45 mm wide miniature screw-driven positioner based on the award-winning MX80 family. Like its predecessor, the MX45S has been engineered for OEMs requiring reliable linear positioning in space-restricted applications.  

Designed with anti-cage creep cross roller bearings, this positioner allows users to position up to 7 kg (15.4 lbs) of normal load on the available three standard travel lengths (5 mm, 15 mm and 25 mm). The MX45S can be supplied with a high-efficiency leadscrew or a high- precision ballscrew, both of which are capable of producing 40 N of thrust at linear velocities of 20 mm/s and 30 mm/s respectively.  

Ideal applications for the MX45S include biomedical imaging, fiber optic alignment, semiconductor inspection and laser diode research.

“The MX45S is designed for applications requiring small incremental movements, micron repeatabilities, smooth motion and high stiffness, all in an ultra-compact package,” says Michael Szesterniak, product manager. “In addition to superior performance, the MX45S is offered with several standard options to allow users to match the positioner's performance with the application’s requirements.” 

Additional design features include:

  • Ultra-compact profile (25 mm high X 45 mm wide X 65, 75 or 90 mm long)
  • 30 mm/s max velocity
  • Stepper motor driven
  • Standard multi-axis configurations


  • anti-cage creep cross roller bearings
  • allows users to position up to 7 kg
  • three standard travel lengths (5 mm, 15 mm and 25 mm)
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