Standard Ends
Description
The production of a standard end made of tinplate or aluminum takes place on an end manufacturing line in the following process steps:
- punching the raw end from a sheet of metal
- pre-curling the outer edge of the end (for safe destacking and seaming)
- lining the end with compound (to tightly seal the double seam)
- drying of the applied compound
A manufacturing line for standard ends consists of several individual machines which are linked together by means of conveyor belts. Blema supplies a tailor-made complete turnkey system for the customer.
Complete installations for round or non-round ends are available, each with a slightly different design.
Manufacturing of Round Standard Ends
Round standard ends of tinplate or aluminum for can closures are manufactured on a fully automatic production line which comprises the following individual machines:
portal press with sheet feeder
for punching and shaping raw ends with a multi-die tool directly from the metal sheet
curler
for pre-curling the outer end geometry to facilitate later destacking and to pre-form the contour for an optimal double-seam closure on a seaming machine
lining machine
for applying compound to the shoulder of the end for a tight seal on the can
drying oven
for drying the sealing compound (reduction of residual moisture)
packer
for automatic or semi-automatic packaging of the ends in plastic or paper bags
Manufacturing of Non-Round Standard Ends
Non-round standard ends of tinplate or aluminum for can closures are manufactured on a fully automatic production line which comprises the following individual machines:
portal press with sheet feeder
for punching and shaping raw ends with a multi-die tool directly from the metal sheet
transfer curler
for pre-curling the lateral end geometry (long side) to facilitate subsequent destacking
lining and die curling machine (THETA I)
for injecting sealing compound into the end shoulder for a tightly sealed closure using the classic showerhead process or with a moving gun (hexapod robot)
drying oven
for drying the sealing compound (reduction of residual moisture)
packer
for automatic or semi-automatic packaging of the ends in plastic or paper bags
Machines for Standard Ends
KAPPA I/III – Crank Press with Strip or Coil Feeder
C-frame crank presses and portal presses with fully automatic feeding units for strips, web or sheet processing
products: metal or cardboard ends, lid rings, clamping rings, drawn cans, sheels for TO-/PT-caps and other closures
ZETA – Curler
curler in continuous rotary design
products: pre-curled ends
THETA I – Liner and Die Curler for non-round ends
linear indexing transfer press in single or dual lane design
products: non-round standard ends, non-round peel-off ends