Three-piece aerosol cans made of tinplate essentially consist of three components:
- can body,
- aerosol top (dome), and
- aerosol bottom.
The can body is manufactured on an aerosol can line.
The manufacturing of aerosol domes and bottoms is carried out on separate aerosol end manufacturing lines.
These complex, fully automated installations consist of several individual machines, which are linked together by means of conveyor belts. Blema offers complete turnkey systems for all variants.
Through a unique Blema development three-piece aerosol cans in all formats can now be embossed, with the embossing exactly matching the decoration of the can.
Manufacturing of Three-piece Aerosol Cans
Can bodies for three-piece aerosol cans made of tinplate are manufactured on a fully automatic production line comprising the following individual machines:
for the cutting of printed and / or lacquered blanks from sheets of tinplate
for the automatic feeding of blanks to the welding machine
for bending the blank into a tube and subseqent welding of the tube
Seam protection system
for applying a protective coating (powder coating or wet lacquer) to the inside and outside of the weld in order to avoid corrosion
for heat-treating the protective weld coating
for final processing of the can body and for seaming on an aerosol bottom and dome
The Blema-own, modular system GAMMA II for aerosol cans allows for the individual combination of the following process steps in a machine
- Necking the can ends, i.e. reducing their diameter (one or both sides)
- Flanging the can ends (both sides)
- Seaming the can with an aerosol bottom (double seam)
- Seaming the can with an aerosol dome (double seam)
for inline differential pressure testing of unilaterally seamed cans
for automatic collecting of cans on pallets (multi-ply with inlays and stretch wrap)
|die necking||die flanging|
|roll necking||roll flanging|
Machines for Aerosol Cans
Combination machine in turret design
produkts: 2- and 3-piece cans for food, aerosol and speciality applications
technologies: necking, flanging, seaming