Differentially Pumped Rotary Feedthroughs
Differentially pumped rotary feedthroughs are available in coarse, manual high precision and motorised high precision options. Mounted on 70mm, 114mm and 152mm OD base flanges, we offer a DPRF to suit each of our sample manipulators. The DPRF allows for instrumentation such as a cryostat or cold finger to be inserted and continuously rotated within the vacuum chamber without effect on the ambient chamber pressure. This module removes the risk of wiring becoming entangled or damaged during rotation.
Key Features
Continuous Rotation into the Chamber
360° Rotation
Axial Feedthrough Chamber
If instrumentation services require rotation, these can be fitted to an axial feedthrough chamber
High Maximum Load Capacity
Up To 130kg Axial Load and 10 Nm Axial Load
Replaceable PTFE Seals
Serviceable In The Field
25mm, 55mm and 100mm Clear Bore
Mounted on 70mm, 114mm & 152mm OD CF Flange
Leak Rate
1x10-10 mbar ls -1
Maximum Rotation Speed
2 RPM
Interspace Pumping
Dual 34mm OD CF Pumping Ports on 55mm & 100mm Clear Bore
Information Table
DPRFs
| Flange OD mm | Actuation Method | Resolution Degrees ° | Max Rotation Speed RPM | Rotation Torque Nm | Maximum Axial Load Kg | Bakeout Temperature | Order Code |
|---|---|---|---|---|---|---|---|
| 114 | Manual | 2 | - | 8 | 130 | 230°C | ZDPRF552 |
| 114 | High Precision Hand Wheel | 0.05 | 1.0 | 0.2 | 130 | 230°C | ZDPRF552H |
| 114 | Stepper Motor | 0.0075 | 2.0 | - | 130 | 230°C* | ZDPRF552W |
| 114 | Encoded Stepper Motor | 0.0075 | 2.0 | - | 130 | 230°C* | ZDPRF552ME |
Rotary Platform
| Flange OD mm | Actuation Method | Resolution Degrees ° | Max Rotation Speed RPM | Rotation Torque Nm | Maximum Axial Load Kg | Bakeout Temperature | Order Code |
|---|---|---|---|---|---|---|---|
| 152 | Manual | 2 | - | 8 | 120 | 150°C | ZRP100C |
| 152 | High Precision Hand Wheel | 0.05 | 2.0 | 0.3 | 120 | 150°C | ZRP100H |
| 152 | Stepper Motor | 0.005 | 2.0 | - | 120 | 150°C* | ZRP100W |
| 152 | Encoded Stepper Motor | 0.005 | 2.0 | - | 120 | 150°C* | ZRP100E |
*With motors removed
DPRFs and Rotary Platforms should be connected to the system or stand alone pump, and should be pumped all the time the system is being pumped.
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