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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