The PSAxxx-11 series stages are the successors of former TSA-AB series, and the performance has been improved greatly. Features of the product are as following:

 

Pre-loaded backlash-free ballscrew, precision linear guide way and elastic coupling used
  Mannual control for easy of use
  Standard hole mounting pattern for easy integration 
  Right and left limit switch, and home sensors
  Close-loop control with linear encoder and our self-developed controller.
  Can be readly configured into multi-axes system
  Magnetic clutch for option vertical application