Rotating platforms

Differentially pumped rotary seals

Differentially pumped rotary seals

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.

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 below

P/N I.D. (mm) Flanges Quantity
DPRS-150 38.8 40 CF Add
DPRS-250 38.8 40 CF / 100 CF Add
DPRS-400 64.2 63 CF Add
DPRS-600 64.2 63 CF / 100 CF Add
DPRS-800 102.3 160 CF Add

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