The sealing systems necessary in many processes are the Achilles heel of stirring systems. These sealing systems range from joints in the simplest cases, to mechanical seal cartridge boxes for the most sophisticated. Depending on how often they are used, it can be necessary to change the mechanical seals several times in the life of a stirrer. Changing the mechanical seals involves dismantling the agitation shaft%u2019s guiding system in order to be able to do the maintenance in the workshop. These various operations can require handling that may be both heavy and costly, resulting in significant manufacturing shutdowns.