Schunk supersedes DDF rotary feed-through control with DDF-plus
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Robot gripping system expert Schunk has redesigned its proven DDF rotary feed-through for controlling gripping modules, valves or sensors behind a 360° rotation axis process. In its DDF-Plus series, dynamic forces and moments are absorbed by a steel shaft instead of an aluminium one. The new units also incorporate smooth-running and long-lasting seals that were specifically developed for Schunk to ensure a low loosening torque. Smaller and more economic drives can be used, allowing particularly gentle rotary motions.
The Schunk DDF-Plus is offered in versions for pneumatic feed-through, feed-through of electric signals and for the combined feed-through of pneumatics and electric. Independent of the module size, the DDF-Plus comprises between two and four pneumatic feed-throughs, and four and 10 electric transmissions for signals up to 1 A/60 V. Optionally, many more electric signals can be transferred.
The standard module is equipped with an air purge and complies with protection class IP65. Due to the ISO bolt pattern, it can be directly connected to various robots. It is suitable for assembly applications such as polishing, grinding and screwing.
From the beginning of 2013, the DDF-Plus will be available in eight sizes: 031, 040, 050, 063, 080, 100, 125, and 160. As they are fully compatible with the DDF predecessor, they can be exchanged one for one. DDF units can be combined with numerous other Schunk modules via standard adapter plates.
