Milkpowder Can Lines
Filling, seaming and processing machines with proVac® or proGas® Technology for milkpowder and baby formula in cans
Methods and systems for evacuating and gassing cans
1. Gassing tunnel
( easy way, but not enough efficient) Gassing filled cans in a gassing tunnel (without evacuation) by flooding gas over the cans before sealing them.
Residual Oxygen Content in Can O2 = 6-8 %
(old fashion, very complex, insecure method) After pre-clinching the vacuum lids onto the cans, a large number of cans are evacuated and gassed in a sealed vacuum chamber; then the gassed cans are seamed tight in the atmosphere.
Residual Oxygen Content in Can O2 = 2-3 %
3. Sealing stations with vacuum chambers
( high vacuum only in strong tin cans) Evacuation of filled cans in sealing stations with chambers with evacuating process in seaming chamber up to 50 % Vacuum.
Residual Oxygen Content in Can O2= < 11 %
4. Machines with rotary seaming heads
(restricted possibilities, inefficient by mechanical angle control, complex for format change) Evacuation and gassing of filled cans in mechanical rotary seaming stations with mechanically controlled processes by angle sectors.
Residual Oxygen Content in Can O2 = < 2%
5. Evacuation using the flow process (INDOSA proGas)
and the gassing of filled cans in many sequential chambers with measurement and control of the processes.
Residual Oxygen Content in Can O2 = 1-2%
6. Process-machines with stationary multi head process stations (INDOSA proVac)
Evacuation, gassing and seaming of filled cans in stationary process stations with controlled processes in independent chambers. Defined under pressure in finished can. Automated chamber cleaning after each stroke. Unique 100% safe memorised process. SCS-System ( Single Can Process Security)
Residual Oxygen Content in Can O2= < 0.5 %