Use of vacuum as a medium in rotating unions:
Semiconductor and electronics production
- Media supply (e.g. cooling water) to rotating wafers or spindles in vacuum chambers
Packaging technology
- Vacuum thermoforming, sealing and suction stations with rotating tools
Automation / Robotics
- 360° grippers and pick & place units that are connected to central vacuum generators via rotary feedthroughs
Pharmaceutical and laboratory technology
- Stirring and mixing systems that require sterile working under negative pressure
Surface and painting technology
- Rotating spray heads or coating drums in which vacuum ensures dust and particle-free conditions
Note: The applications listed are only an excerpt and are for illustrative purposes. Due to the large number of possible areas of application, not all use cases can be shown here.
Advantages of rotating unions for use with air
- Leak-free operation with negative pressure
- High process and product safety
- Durable seal and bearing designs
- Reliable at high speeds
- Compact designs for small installation spaces
- Reduced machine wear
- Quick replacement and maintenance-friendly design
- Adaptable to different media and materials
Conclusion:
Rotary feedthroughs for vacuum applications ensure trouble-free operation of rotating systems, protect sensitive processes from air ingress and thus make a significant contribution to high system availability and efficiency.
