Abstract: A molding unit (10) for the manufacture of containers from preforms made of thermoplastic, includes compensating elements which are formed of at least one gripper (60) which acts on mold carriers (16) that carry the mold (12) of the unit (10) in order to clamp them against one another when the molding unit (10) is in the closed position and to apply a compensating force that tends to clamp together molding elements (14) of the mold (12) at a parting line (P) and opposes the forces that a pressurized fluid applies to the molding elements (14) when a container is being molded from a preform.

Abstract: A device (10) for conveying at least one preform (12) in a preform heating unit (12), the conveying device (10) including a conveyor belt which includes at least: a main traction belt (14a) which engages with rotary elements (16a, 16b); and a secondary support belt (14b) which is movably connected to the main belt (14a) by a connecting element (24), and to which at least one support device (34) of at least one preform (12) is attached by an attachment element (36).

Abstract: A device (10) for conveying at least one preform (12) in a preform heating unit (12), the conveying device (10) including a conveyor belt which includes at least: a main traction belt (14a) which engages with rotary elements (16a, 16b); and a secondary support belt (14b) which is movably connected to the main belt (14a) by a connecting element (24), and to which at least one support device (34) of at least one preform (12) is attached by an attachment element (36).