ULVAC VACUUM > Other Vacuum Parts > Each Feedthroughs > TDU Series Ultra-High Vacuum Rotary Feedthroughs
TDU Series Ultra-High Vacuum Rotary Feedthroughs
The TDU Series are rotary feedthroughs enabling objects in vacuum chambers at ultra-high vacuum pressure to be rotated manually from the vacuum system's atmosphere side. When the handle on the atmosphere side is turned, the rotation is conveyed through a bellows to rotate the shaft on the vacuum side.
- • Low outgas emission, ideal for ultra-high vacuums.
• Bearings used in vacuum are lubricant-free and clean.
• Each complete turn of handle rotates shaft exactly once, allowing angle of rotation to be read.
• No magnets, eliminating risk of leaking magnetic fields
• Can be rotated in either direction, and fixed at any position.
- • Manual rotation in ultra-high vacuum systems
| Model | TDU-04FM | TDU-08F |
| Shaft/handle rotation ratio | 1 : 1 | |
| Smallest calibration | 45º | 10º |
| Drive shaft diameter | 5mm diameter | 8mm diameter |
| Connecting flange | UFC034 | UFC070 |
| Weight | 0.4kg | 1.1kg |
| Leak rate | 1.3 x 10-11 Pa·m3/s max. | |
| Bake-out temperature (*1) | 150ºC max. | 250ºC max. |
*1 Can't be turned while heating. (After heating, can't be turned until chamber has returned to room temperature.0)
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