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Manual Viewport Shutters

KJLC Viewport Shutters Features:

  • Prevent deposition materials from depositing on and ruining viewports
  • Shutters are opened in safe conditions, closed while deposition occurs
  • Operate to base pressures below 10-9 Torr
  • Bakeable to 250°C

Manual Viewport Shutters Features:

  • Feature a circular flapper plate 90° mounted on a tangential axis, sweeping through
  • Flapper plate is rotated by a magnetic rotary drive feedthrough
  • Feedthrough knob houses a thumb screw to keep the flapper open in a desired position and to adjust the drive torque
Viewport Cleaning
Procedure Guide
For a guide on Viewport Cleaning Procedures, please click here.
Contact Us
To speak with someone directly, please call +1 412 387 9200 or email
  • We strongly recommend shutters for evaporation and sputtering systems in which material may deposit on the viewport viewing area.

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