SEAMING TECHNOLOGY
 
 

Non-round cans particularities
  Non axi-symmetric nature of the cans.
  Body structural stiffness.
  Change of curvature.
  Body and lid flange design changes around the periphery.
  The curling is generally uneven around the lid.
  The process (machine) influences the final result.
  Non-round Seamer Basis
  Cam & Lever mechanism.
  The most widely used mechanism nowadays.
  Plunge method (rapid attack).
  Software para detección de errores de trayectoria.
 
  Plunge Method
 
Classic method
Plunge Method
     
  Classic method, each operation is done in several turns.
  Plunge method, rapid attack, each operation is done is one turn.
 
  SOMME machines particularities
  Curling
  Solves discontinuity between curled and uncurled zones.
  Deep curling useful for some difficult cans.
 
 

Plunge method
1st operation 1 turn
2nd operation 1 turn

Improved performance
Material better controlled

Classic method
1st operation 5-7 turns
2nd operation 2-3 turns

Slower machines
More free-forming process