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Rotary Feed-Through

2-4 Feed-Through PRD

PRD is a rotary fluid feed-through for robot applications and rotary indexing tables with unlimited rotational movement.


  • High strength, long life, no maintenance.
  • Hardened steel inner hub for high power-transmission of modern robots.
  • ISO flange pattern for easy mounting to most types of robots without needing additional adapter plates.
  • 2 or 4 fluid feed-throughs (more feed-throughs available on request).
  • Compact dimensions for minimal impact in customers’ applications.
  • Smooth-running long-lasting seal ensures low starting torque and low continuous torque.
  • Dirt protection by means of rotary seals.
  • Air supply via axial or radial fitting screw connections.
DatasheetModelNr of feed-throughsRecommended handling weightStarting torqueRobot side connectionWeight
PRD2-31.526 kg2.6 Nm ISO 9409-1-31.50.58 kg
PRD2-40220 kg2.5 Nm ISO 9409-1-401.13 kg
PRD2-50220 kg2.5 Nm ISO 9409-1-501.23 kg
PRD2-63235 kg4.5 Nm ISO 9409-1-632.41 kg
PRD2-802100 kg10 Nm ISO 9409-1-805.3 kg
PRD2-1002100 kg10 Nm ISO 9409-1-1005.4 kg
PRD2-1252225 kg22.5 Nm ISO 9409-1-12513.4 kg
PRD2-1602225 kg22.5 Nm ISO 9409-1-16014.35 kg
PRD4-40420 kg5 Nm ISO 9409-1-401.53 kg
PRD4-50420 kg5 Nm ISO 9409-1-501.63 kg
PRD4-63435 kg9 Nm ISO 9409-1-633.21 kg
PRD4-804100 kg20 Nm ISO 9409-1-806.9 kg
PRD4-1004100 kg20 Nm ISO 9409-1-1007 kg
PRD4-1254225 kg45 Nm ISO 9409-1-12517.2 kg
PRD4-1604225 kg45 Nm ISO 9409-1-16018.15 kg

Ambient temperature 5-60°C
Sound emissions (sound pressure) ≤ 70 db (A) in each direction

The dimensions are indicative and susceptible to changes due to technical improvements. We reserve the right to make changes without notice.