Vacuum Follower Plate
Bubble-free feeding of high viscosity potting material
The patented vacuum follower plate was designed specifically for feeding high viscosity potting material from a hobbock or pail and is used in the A220 and A280. The vacuum follower plate is made of polypropylene (PP), which guarantees appealing sliding and manufacturing characteristics that aid in the production process. In addition, PP provides exceptional material compatibility with the most frequently used potting media.
- Bubble-free docking
- Cost-effective solution thanks to almost complete emptying of the drum
- Fast drum changes without transferring material residue
The air trapped between the plate and potting material surface is drawn into the plate by a vacuum during docking. This prevents the air from entering the potting material or disturbing the feeding process. It also levels the surface, which facilitates a constant material flow. In the process, the potting material is pushed through the center opening into the feed lines. A fill level measurement system ensures that the drum is emptied completely. Because the plate is a single-use item that is disposed of with the empty pail, the new material is not contaminated with dried material residue.
The patented vacuum follower plate can reliably prevent flaws at the very beginning of the process chain. If a container of the required size is not available, A220 and A280 systems can also be equipped with a conventional rubber follower plate. Even here you continue to benefit from the convenient process control and monitoring of the entire Scheugenpflug system.
This optional device extends the range of applications of the vacuum follower plate for bubble-free material supply. The expanding ring contains an inflatable seal, which spreads the vacuum follower plate during docking to the material container. This ensures a perfect seal between the follower plate and the inner wall of the pail. The new expanding ring thus enables a bubble-free material feed from conical containers. Even variable container sizes (inner diameter 281.5 - 288 mm) can be reliably covered.