The Vacuum Seamer is suitable for the double seaming of the containers to be vacuum-sealed. The Seamer is placed inside a stainless steel cylindrical chamber.
The machine is constantly and automatically supplied with both the full cans and lids through a process that avoids air filtering inside the chamber. The suction pump put outside the chamber almost completely draws the air (90% = 0.9 bar). An automatic system controls and the chamber vacuum level and keeps it constant. The cans employed for this process can be made of cardboard, aluminium, plastic, tinplate, etc. with “Open Top”, “Easy Open” or “Easy Peel” lids. The stacked lids are divided one by one by a screw and are then fed until they reach a raising can that picks them up. During the seaming process the cans are put on specific rotating plates and raised until they reach the lid with which to be seamed. Specific seaming rolls hermetically seal the cans and the lids. The seaming process happens in two phases: the first one is needed to prepare and bend the metal sheets whilst during the second one the lid is hermetically sealed with the container.
The machine is completely constructed in strong stainless steel and its critical points are made of special stainless steel materials resistant to corrosion. An advanced automatic lubrication plant equipped with oil recirculation device, specific for food, is installed on the machine. This plant is equipped with pump, filter, pressure control device and condensation ejection system. The machine moving parts, seaming rolls included, are constantly oiled in order to raise the machine efficiency and lessen its maintenance costs. The can and lid feeding system is electronically synchronized with the Seamer and several controls guarantee both their perfect synchronization and the minimum spillage of product. The container and lid feeding belts going to the vacuum chamber are constructed with special devices that keep their tension constant and reduce their wear. The machine is equipped with a continuous water drainage system that collects the water during the vacuum-sealing process. If special maintenance is required, it is possible to remove the Seamer from the chamber exploiting the wheels put at its bottom; by doing so, the machine can glide upon special rails fixed at the base of the vacuum-sealing chamber. It is also possible to use the Vacuum Seamer as normal Seamer to work with hot preserving liquid.
- DSM (Zacmi Patent) real time container seaming control device.
- Seamer-Filler Electronic synchronization.
- WIP washing system.