Disclosed is a method for parametrizing a facility for producing containers including: a mold having a movable mold bottom, a movable drawing rod and an electric machine coupled with the rod; from a configuration in which the rod is in a raised position and in the bottom in an extended position, operating the electric machine as a motor; assessing the resultant of the axial forces on the rod; when a variation is detected in the resultant of the forces, assigning an initial position to the rod; controlling the movement of the mold bottom towards the retracted position thereof; assigning to the rod the corresponding so-called final position of the rod; and calculating the difference between the final position and the initial position.

A molding unit (10) for forming a container made of thermoplastic material, includes:a mold bottom (16) that is movable between a low position, an intermediate boxing position and a high position;a carriage (24) that supports the mold bottom (16) and is mounted in a movable manner in a fixed holder (26);actuation elements for moving the carriage (24) into its intermediate boxing position;the actuation elements including a cylinder (32) that houses a piston (98) liable to push the mold bottom (16) through a boxing travel; characterized in that the mold bottom (16) is supported in a fixed manner by the carriage (24), the cylinder (32) being fixed with respect to the fixed holder (26). A method for employing the molding unit is also described.

A method of producing a container (2) from a blank (3) made of plastics material within a mould (4) which is provided with a wall (5) defining a cavity (6) bearing the impression of the container (2), and with a mould base (8) which can move relative to the wall (5) between a retracted position in which it extends in set-back manner relative to the cavity (6) and a deployed position in which it closes the cavity (6). The method includes a boxing stage in which the mould base (8) moves from its retracted position to its deployed position, the travel (C) of the mould base (8) between its retracted position and its deployed position being greater than 20 mm.