Abstract: Machine for packing products in a thermoretractable film is disclosed and includes a roll supplying a supple film center-folded in two layers for wrapping a product, means for separating the two layers of film, means for welding the periphery of said film, and means for retracting the film about the product to be packed. In the machine the welding and retraction means are regrouped into one working station on a fixed table. The retraction means are constituted by a movable structure, disposed in parallel to and above the fixed table, said structure being equipped with a source of hot air directed towards the table, and being able, on the one hand, to slide horizontally along the table so as to sweep the surface of the film to be retracted, after edge-to-edge welding; and on the other hand, to pivot inside an orthogonal plane with respect to the plane of the table.