DROOP

Droop is a condition where a smooth projection of the seam extends below the normal seam. This can occur any place in the seam.

POTENTIAL CAUSES:

  • Worn first operation seaming roll.

  • Worn first operation seaming roll bearing.

  • Damaged flange.

  • Body hook too long.

  • Product in seam.

  • Damaged curl in can cover.

  • Excessive or uneven lining compound in cover curl.

SUGGESTED REMEDY:

  • Replace seaming roll.

  • Replace seaming roll bearing.

  • Determine cause of flange damage: filler, track work, transit related, or can manufacturer.

  • Check pin height and decrease lifter spring pressure as necessary.

  • Clean and adjust filler so product does not get trapped in the double seam. Check seamer feed chain timing.

  • Determine cause of cover curl damage: separator mechanism, cover guide rail, transit related, or end manufacturer.

  • Discuss with can or end manufacturer.