Installation and method for sterilising objects by low-energy electron bombardment

Installation (1) for sterilising objects by low-energy electron bombardment on the external surface of said objects, which installation includes sterilisation means (18) capable of generating a low-energy electron beam along an axis (A) passing through a treatment chamber (16) of the installation, which installation also includes a first mechanical module (12) designed so as to be capable of generating, during the sterilisation of an object (2) to be treated located inside the treatment chamber (16), a relative rotation movement between the object (2) and said sterilisation means (18), about an axis (A′) chosen so that axis (A) of said electron beam generated by said sterilisation means (18) continuously passes through the external surface of the object (2) during the relative rotation movement about said axis (A′), characterised in that it comprises a second mechanical module (22) designed so as to be capable of generating, when the object (2) located inside said treatment chamber (16) is released from the first mechanical module (12), a rotation of the object (2) about an axis (A″) oriented orthogonally with respect to axis (A′).