Paper Bottom Sealer

VSS Paper Bottom Sealer


On the paper bottom sealing machine, filled or unfilled composite cans are sealed and closed with a bottom made of composite paper or cardboard by means of a heat contact process.

Both round and non-round formats can be processed!

Design and Function

fully automatic, indexed closing machine in rotary turret design

Feeding of the can bodies

  • feeding the filled cans or unfilled can bodies to the machine on a horizontal conveyor belt (optional)
  • separating the cans by central star wheel

Feeding of the paper bottoms

  • inserting the prefabricated paper bottoms into the bottom magazine
    • gentle extraction of the cardboard bottom from the magazine by means of vacuum

Heat-sealing process

  • exact positioning of the paper bottoms in a form ring
  • calibrating the can bodies by means of the form ring
    • precise orientation to the paper bottoms
    • correction of slight deformations of the can body

  • controlled lifting of the bottom and can body into the sealing tool
  • heat-sealing of paper bottom with can body
    • by inner and outer heated sealing tools
    • utilizing robust and easy-to-use heat contact technology
    • with adjustable and monitored temperature
    • long sealing times (up to 1.65 s) thanks to turret principle



Format Change

quick change to other can formats using

  • manual height adjustment without change parts
  • very good and easy access to the tooling area
  • short changeover time for preset sealing head with quick change mechanism

Technical Data

max. output [cpm]1010202540
no. of sealing heads11112
no. of bottom magazines01112
can diameter [mm]Ø 55…160Ø 65…127Ø 55…160Ø 65…127
can diagonal (unrund)on demand
can height [mm]60…25060…30060…27560…300

material specification (can)

composite paper, with or without label
0.7…1.0 mm
material speci-fication (bottom)

sealable composite cardboard
0.3…0.8 mm

pneumatic connection6 bar

Please note that the technical data provided in this table is to be understood as typical or maximum data but not as a property guarantee. The maximum values depend strongly on product specification (material, dimensions, tolerances etc.) and technologies employed. The final technical data for the application will be assessed after review of product specifications.