Induction sealing device for heat sealing packaging material

摘要

There is described an induction sealing device (15) for heat sealing packaging material for producing sealed packages of pourable food products and fed in a first direction (A). The sealing device (15) has induction means (20, 21) interacting with the packaging material by means of a pair of first active surfaces (26) and a pair of second active surfaces (25) interposed between the first active surfaces (26) in the first direction (A); and the second active surfaces (25) have, in the first direction (A), a width (L1) greater than the width (L2) of the First active surfaces (26) at least along most of the length of the first and second active surfaces (26, 25) in a second direction (B) perpendicular to the first direction (A).