Terminology – Page 2 – Seam School – Craft Seaming

first operation roll

A roll is a tooling that comes either as 1st operation or 2nd operation variant. The first operation roll is designed

The chuck is a tooling inside the seamer which holds the end as the can is raised into it and

A roll is a tooling that comes either as 1st operation or 2nd operation variant. The first operation roll is designed

Cover Hook Butting is a relatively new term, which determines the coverage of the cover hook in percentage. CH Butting is

Body Hook Butting (or BH Butting) is a calculated percentage determining how much the Body Hook is embedded in to the seaming compound. Body Hook

There are a few ways to measure the Overlap %, which is a percentage of the overlap within the seam.

Free Space (or freespace) is a measure of how much allowance there is in the seam for the compound. It represents

Seam Gap is the distance between the can and end at the top of the double seam. Seam gap is

The overlap is a critical internal measurement of the double seam and needs to be measured by cutting the double

Tightness is is what is evaluated during Wrinkle rating. It is a measure of how tightly the seam has been compressed by