Integration of the Closure Principle
Many industrial filling processes are largely automated; however, opening and closing fine-thread bung closures often still involves manual steps. With VeloDrum SafeClosure, GREIF-VELOX has developed a patent-pending solution that integrates this process step into automated drum filling. Position, tool engagement, and screwing are checked on the process side.
Monitored Process in Six Steps
The automated sequence is divided into six steps: positioning, checking, opening, filling, closing, and verifying.
First, the bung hole is approached with vision guidance. An overpressure test confirms correct fit and sealing. The screwdriver tool then engages the plug and opens it under torque monitoring. After filling, the plug is automatically screwed back in. Torque and screw-in depth then confirm correct screwing.
Use with Reconditioned Drums
VeloDrum SafeClosure can also be used with reconditioned drums from the circular economy, provided the drum surface is suitable and the bung hole is intact. GREIF-VELOX checks the specific combination of drum, closure, and process requirements application by application, and integrates the system into new or existing filling lines.
Technical Design for Steel and Plastic Drums
The system is suitable for various drum and closure combinations with flexible torque settings:
- Steel drums with 2-inch plastic fine-thread plugs or 2-inch steel plugs
- Plastic drums with plastic plugs in sizes BCS 56 x 4 and BCS 70 x 6
When handling plastic plugs, the pneumatic system works without a spring. The plug is secured in the screwdriver, ensuring that elastic spring-back of the plastic drum during lifting does not affect positioning.
Integration as Retrofit and Areas of Application
VeloDrum SafeClosure can be integrated as a retrofit into existing filling plants and automated pallet filling lines.
“With VeloDrum SafeClosure, we are closing one of the last automation gaps in drum filling. A previously manual step becomes part of a monitored, reproducible process. This creates reliable operations and reduces recurring manual interventions along the filling line,” explains Björn Voges, Global Marketing Manager at GREIF-VELOX.
Areas of application include chemicals, additives, lubricants, paints, varnishes, technical fluids, as well as food manufacturers, contract fillers, and drum manufacturers.
