Schunk DDF 2-031-P2-E4 Rotary Feed-Through

Schunk DDF 2-031-P2-E4 Rotary Feed-Through is a compact rotary interface that passes electrical and pneumatic lines through a rotating joint for robotics and automated systems. It provides four electrical feed-throughs and two pneumatic feed-throughs (air connections via 2x M5 threads) to carry power, signals, and compressed air across the rotating axis without twisting. Robot-side connection uses ISO 9409-1-31.5-4-M5; overall dimensions Ø63 x 56 mm; weight 0.5 kg. Electrical specs include a maximum voltage of 60 V and maximum current of 1 A; the unit features nominal torque 0.8 Nm and starting torque 1.3 Nm, with rotation capability >360°, a maximum drive speed of 120 rpm, and a maximum rotational speed of 720 °/s. Pneumatic specifications indicate a maximum pressure per connection of 10 bar, with a flow of 100 L/min per channel at 6 bar. Ambient operating temperature is 5–60°C. Dynamic load ratings list Mx/My of 12 Nm and Mz of 8 Nm, with a shear force rating Fq of 60 N. The module is cataloged as DDF 2-031-P2-E4 (ID 323034) and is associated with a MHS4-63D interface.