Abstract: An inductor for induction welding of a packaging material having at least one layer of metal foil is disclosed. The inductor comprises a welding surface configured to be arranged opposite the packaging material for heating thereof, and at least one spacing element arranged to protrude from the welding surface in a first direction towards the packaging material, when the packaging material is arranged opposite the welding surface, whereupon the least one spacing element separates the packaging material from the welding surface by an off-set distance. A sealing machine for sealing packaging material and a method of welding a packaging material is also disclosed.

Abstract: A guiding device for guiding a sheet of packaging material in a packaging machine for producing sealed packages includes: a plurality of folding rollers defining a passage for the sheet of packaging material, the passage having a longitudinal axis, wherein the plurality of folding rollers are configured to cause a first longitudinal edge of the sheet of packaging material to superimpose to a second longitudinal edge of the sheet of packaging material, opposite the first longitudinal edge, wherein the first longitudinal edge and the second longitudinal edge define an overlapping area having an extension, wherein the plurality of folding rollers include: a group of first folding rollers configured to rotate around first rotation axes, and at least one second folding roller configured to rotate around a second rotation axis, and a driving arrangement configured to move the at least one second folding roller towards and away from the longitudinal axis.

Abstract: A guiding device for guiding a sheet of packaging material (3) in a packaging machine (1) for producing sealed packages (2), said guiding device comprising a plurality of folding rollers defining a passage (31) for said sheet of packaging material (3) and causing a first longitudinal edge (11) of said sheet of packaging material (3) to superimpose to a second longitudinal edge (15) of said sheet of packaging material (3), opposite said first longitudinal edge (11), to define an overlapping area (16) of said first longitudinal edge (11) and said second longitudinal edge (15), said overlapping area having a certain extension, said passage having a longitudinal axis (A), said plurality of folding rollers comprising a group of first folding rollers (32) rotatable around first rotation axes (C) arranged in a common first plane, said plurality of folding rollers further comprising at least one second folding roller (33) rotatable around a second rotation axis (D) arranged in a second plane, different from said firs

Abstract: An inductor for induction welding of a packaging material having at least one layer of metal foil is disclosed. The inductor comprises a welding surface configured to be arranged opposite the packaging material for heating thereof, and at least one spacing element arranged to protrude from the welding surface in a first direction towards the packaging material, when the packaging material is arranged opposite the welding surface, whereupon the least one spacing element separates the packaging material from the welding surface by an off-set distance. A sealing machine for sealing packaging material and a method of welding a packaging material is also disclosed.