Glossary Updates12 new terms added to the glossaries · October 2, 2026, 22:44 CEST
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Glossary · Packaging and intralogistics

Case sealer

Also known as: Carton sealer, Case taper

German: Kartonverschließer

In packaging, a case sealer is a packaging machine that folds and closes the top flaps, and on some models the bottom flaps, of filled corrugated cases with tape or hot-melt glue.

  • Intralogistics

In one sentence

A case sealer folds and closes the flaps of filled corrugated cases with adhesive tape or hot-melt glue.

Example

Filled cases pass through a random case sealer that adjusts automatically to the height and width of each case before taping.

How it applies

  • Engineering: Uniform case sealers are set for one case size; random case sealers adjust to varying sizes automatically. Tape heads contain knives that cut the tape.
  • Operation: Changing the tape roll and adjusting for new case sizes are frequent operator tasks.
  • Safety: Tape knives and in-running drive belts are typical hazards. Knife guards and correct tape-changing procedures matter; see Cutting hazard. Where hot-melt glue is used, thermal hazards add to the list.
  • Documentation: Write the tape change as an illustrated task with the knife hazard warned at the step where it applies, not only in a general safety chapter. Include settings for each case size and a short troubleshooting table for loose flaps, crooked tape and jams.

Case sealer vs. case erector

The Case erector forms empty cases and seals the bottom; the case sealer closes filled cases. Both may use the same sealing technology.

By knowledge.aitechdoc.world · Published September 26, 2026 · Last reviewed

Source: AI TechDoc Blog editorial definition, based on packaging machinery practice

Definitions follow the cited standards and specifications. Where a source is a copyrighted publication, such as an ISO, IEC or EN standard, the definition is a close paraphrase, not a verbatim quotation, so as not to infringe copyright. We recommend reading the original publication. The sections “How it applies” are editorial commentary by AI TechDoc Blog and are not part of any standard.

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