Seam Length

seam length

Seam Length is also known as Seam Width or Seam Height and is a critical external measurement.

Incorrect seam length can cause false seams and other critical defects. It is usually caused by incorrect overlap and is a clear indication that something is terribly wrong with the seam

Note that it is insufficient to measure this value at one point and it is crucial to measure as many points as possible for length issues. Ultimately, a non destructive system like SEAM360 or the Auto-XTS is a way to ensure that the Seam Length is correct around the entire circumference of the can.  

How to measure Seam Length?

  • Seam length can be measured manually using a seam micrometer,
  • Since seam length is apparently unaffected by cutting the seam (double seam section saw) the measurement can be done automatically using a seam inspection software such as CMC-KUHNKE SEAMetal or CMC-KUHNKE SEAMscan.
  • Solutions such as the CMC-KUHNKE Auto XTS also allow a fully unique approach to seam inspection that can either be fully-automated, on-line, or stand alone 
  • The CMC-KUHNKE SEAMScan tool is also the perfect solution for craft drinks companies

    measure - inches

Possible causes of high (excessive) Seam Length:

bad overlap 1

How to fix it?

The simplest way to fix excessive Seam length is to use a clearance gauge.