A housing element (1; 101; 201; 301; 401; 601) for at least two magnets (2, 3; 102, 103; 202, 203; 302, 303; 402, 403; 602, 603), of the type adapted to be associated with a support and guide magnetic structure, said housing element (1; 101; 201; 301; 401; 601) being adapted to hold a conveyor with articulated links movable along said support and guide structure joined with said support and guide structure; wherein the housing element comprises a body (4; 104, 204, 304; 404, 604) comprising: - at least one side wall (9A-D; 109A-D; 209A-D; 309A-D; 409A-D; 609A-D), one bottom wall, and one central wall (9E; 109E; 209E; 309E; 409E; 609E) and said walls delimit in the body (4; 104, 204, 304; 404, 604) at least two seats (5A, 5B; 105A, 105B; 205A, 205B; 305A, 305B; 405A, 405B; 605A, 605B) for housing said at least two magnets, - at least two openings (7, 8) for inserting the at least two magnets in said at least two seats for the magnets (5A, 5B; 105A, 105B; 205A, 205B; 305A, 305B; 405A, 405B; 605A, 605B); - the body (4; 104, 204, 304; 404, 604) having at least one seat comprising a part (14; 114; 214; 314; 414; 614) which is shaped and sized in such a way that it can house a plate (6; 306; 406; 606) in a ferromagnetic material, adapted to come into contact with said at least two magnets; - said body (4; 104, 204, 304; 404, 604) comprising at least one retaining part (71A-C; 171A-C; 271A-C; 371A-C; 471A-C; 671A-C) thereof, adapted to hold said at least two magnets constrained to said body in a predetermined position, in order to facilitate the positioning and / or handling of the magnets and the assembly of the housing element; characterized in that: said retaining part (71A-C; 171A-C; 271A-C; 371A-C; 471A-C; 671A-C) is sized and shaped in such a way that it holds the magnets constrained in said at least two seats (5A, 5B; 105A, 105B; 205A, 205B; 305A, 305B; 405A, 405B; 605A, 605B) for the magnets by friction of the surfaces of said magnets and of said two seats for the magnets, which are in contact with each other; and in that the ferromagnetic plate (6; 306; 406; 606) is holdable in its part (14; 114; 214; 314; 414; 614) at least by the magnetic force of the magnets and the friction connection of the magnets in the relative magnet seats. - at least one side wall (9A-D; 109A-D; 209A-D; 309A-D; 409A-D; 609A-D), one bottom wall, and one central wall (9E; 109E; 209E; 309E; 409E; 609E) and said walls delimit in the body (4; 104, 204, 304; 404, 604) at least two seats (5A, 5B; 105A, 105B; 205A, 205B; 305A, 305B; 405A, 405B; 605A, 605B) for housing said at least two magnets, - at least two openings (7, 8) for inserting the at least two magnets in said at least two seats for the magnets (5A, 5B; 105A, 105B; 205A, 205B; 305A, 305B; 405A, 405B; 605A, 605B); - the body (4; 104, 204, 304; 404, 604) having at least one seat comprising a part (14; 114; 214; 314; 414; 614) which is shaped and sized in such a way that it can house a plate (6; 306; 406; 606) in a ferromagnetic material, adapted to come into contact with said at least two magnets; - said body (4; 104, 204, 304; 404, 604) comprising at least one retaining part (71A-C; 171A-C; 271A-C; 371A-C; 471A-C; 671A-C) thereof, adapted to hold said at least two magnets constrained to said body in a predetermined position, in order to facilitate the positioning and / or handling of the magnets and the assembly of the housing element; said retaining part (71A-C; 171A-C; 271A-C; 371A-C; 471A-C; 671A-C) is sized and shaped in such a way that it holds the magnets constrained in said at least two seats (5A, 5B; 105A, 105B; 205A, 205B; 305A, 305B; 405A, 405B; 605A, 605B) for the magnets by friction of the surfaces of said magnets and of said two seats for the magnets, which are in contact with each other; and in that the ferromagnetic plate (6; 306; 406; 606) is holdable in its part (14; 114; 214; 314; 414; 614) at least by the magnetic force of the magnets and the friction connection of the magnets in the relative magnet seats.