---
publication_id: "OT-2026-000000504"
title: "Sealing tool for a skin packaging"
published_at: "2026-09-15T19:02:59.323962Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000000504"
categories:
  - "material-handling/package-handling"
keywords:
  - "b65b11/52"
  - "b65b31/028"
  - "b65b5/068"
---

# Sealing tool for a skin packaging

## Abstract

An upper tool for a sealing station of a packaging machine, having an indentation with which an upper film web can be formed and having gas through-openings that are provided along the indentation and can be connected to a negative pressure, positive pressure, and/or aeration source, the gas through-openings can be divided into at least two groups that can be connected independently of one another to the negative pressure, positive pressure, and/or aeration source, the former has chambers that are each connected to the negative pressure, positive pressure, and/or aeration source and are each connected to a group of gas through-openings, and a group and/or a chamber is provided in a central region of the indentation, a further chamber in a shape of a ring, extends about the chamber in the central region, and a signal from a pressure sensor is used for initiating the aeration of the ring-shaped region.