A sealing machine and method for controlling a sealing machine Includes the following steps: placing capped containers provided with a seal on plates, rotating the plates, pressing the seal against the cap of the container and fastening said seal using a sealing head. The step of rotating the plates is performed by rotating each plate independently of the other plates. The method further includes: detecting at least one parameter associated with the rotation of a plate and/or with a compression load between each sealing head and the seal, and comparing the value of the detected parameter with a reference range.

A method for closing receptacles (2), comprising steps of: in a controlled-contamination environment (6) having a volume that extends into a restricted zone about the neck (2b) of the receptacles, resting and pressing a closure (10) onto a mouth (2a) of each receptacle (2); screwing the capsule (10) onto the neck (2b) of the corresponding receptacle (2) externally of the controlled contamination environment (6).

A sealing machine and method for controlling a sealing machine Includes the following steps: placing capped containers provided with a seal on plates, rotating the plates, pressing the seal against the cap of the container and fastening said seal using a sealing head. The step of rotating the plates is performed by rotating each plate independently of the other plates. The method further includes: detecting at least one parameter associated with the rotation of a plate and/or with a compression load between each sealing head and the seal, and comparing the value of the detected parameter with a reference range.