55mm Clear Bore Dual Stage DPRF
The DPRF55(2) is a differentially pumped rotary feedthrough (DPRF) available in coarse, manual high precision and motorised high precision options. Mounted on a 114mm OD CF flange with 55mm clear bore and two 34mm OD CF pumping ports on the base flange. The DPRF55(2) allows for a 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. A high capacity load permits up to 130kg pay loads to be tolerated. PTFE seals can be replaced upon maintenance service intervals to prolong the life of the rotary feedthrough.
Key Features
Continuous Rotation into the Chamber
360° Rotation
55mm Clear Bore
Mounted on 114mm OD CF Flange
High Maximum Load Capacity
130kg Axial Load and 10 Nm Axial Load
Replaceable PTFE Seals
Serviceable In The Field
Fully Bakeable to 230°C
With Motors Removed
Leak Rate
1x10-10 mbar l/s -1
Maximum Rotation Speed
2 RPM
Interspace Pumping
Dual 34mm OD CF Pumping Ports
Information Table
DPRF55(2) with Actuation Options
| 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 |
*230°C with motors removed
DPRFs 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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