Neck Damage
If the alignment of the cans under the fill heads is off, whether it be lateral, front to back, or the distance of travel for the fill head carriage, we will damage the flange of the can. When the flange of the can is damaged, even subtly, before it ever makes it to the seamer, it will end up seaming, but will have a compromised point on the neck like the photo on the left. This is not the only reason we will see this damage, and at times can be shown due to a torque issue during the seaming process. When you see this damage, start with your fill heads, and if it is still present, contact the Codi Service team.
Order of Operations:
Follow the steps laid out in the "Fill Head Alignment" walkthrough.
Run a manual pressure test to ensure can seal integrity. The fill heads coming down on the cans should make a more pillow sound, any scrape or slam is incorrect alignment.
If the cans are popping up as they index into the filler causing the cans to be out of alignment when the fill heads travel down, asses rail tightness as well as any residue on the index screw causing excess friction.
Check Can seal gaskets for abnormalities.
If the damage is still present after guaranteeing fill head alignment, there is a chance that the neck is being torqued during the seam from either Op 2 being too tight, Pin Height being off, or a few other variables. Go ahead and contact the Codi Service team on the possible seam torque issue.
