DPRS series differentially pumped rotary seals provide 360° of continuous rotary freedom through the wall of any vacuum system. The DPRS has two stages of differential pumping isolated by graphite-impregnated, expanded, Teflon seals on special sealing surfaces. A preloaded ball bearing set accurately controls the rotating stage position. This allows the unit to be successfully used with manipulators and other precision positioning devices.

Common features:

• Fixed and rotatable flanges, tapped
• Thickness approximately that of two CF flanges
• 2-stage differentially pumped
• Usable under UHV
• 0-360° scale with vernier
• Bakeable to 150°C

Position reading:

• Standard scale : 1.0°
• Mechanical counter : 0.1°
• Microstepped motor drive required for maximum resolution

DPRSs are available with a worm drive fine adjust option. This allows for easier and more accurate angle adjustment. DPRSs are also available with anti-backlash stepping or synchronous motor drive.

To learn more about our product please download our documentation from the tab "Downloads"