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Linear Motion

4.5" CF Compact Linear Shifts

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Lesker 4.5" CF Compact Linear Shifts


The Kurt J. Lesker CLSM is the compact series, offering the shortest flange-to-flange face dimension. This series is offered with limited flange and stroke options.

Linear transfer mechanisms are UHV clear-bore bellows assemblies in which the top flange moves toward or away from the bottom flange, maintaining parallelism.

  • Rugged design ensures smooth and precise motion along the Z-Axis
  • Support high loads, but the actuator should be carefully chosen to suit the physical effort and precision required for positioning
  • Flange options: 2-3/4" or 4-1/2"O.D. CF with straddled bolt-hole orientation, metric tapped holes as standard
  • Demountable bellows assembly
  • Precision stainless steel ACME leadscrew
  • Precision-ground stainless steel guide system


  • Designed for the linear movement of large flange-mounted instruments with minimum tilt or wobble in the movement, and allowing precision alignment before and after pump-down
  • Manual units operated handwheel drives
  • Motorized units driven by stepper motor or DC motor mechanisms
  • Drives support bellows assemblies in a precision kinematic guide system, complete with anti-rotation and anti-deflection systems
  • Standard travel distances of 25mm through 100mm (custom units available)
  • Ideal for manipulation of surface science tools with respect to a sample's position, manipulation of evaporation and sputter sources, substrate and source shutters, sample heating stage adjustment, sample transfer applications, and general sample manipulation



Lesker 4.5" CF Compact Linear Shifts

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