Abstract: A linear actuator particularly for sliding doors and for sliding door or window closure elements in general, comprising a box-like body, to be fixed with corresponding elements of fixing between the two jambs of a door or of a window or door frame, in order to move a leaf by translational motion, fixed drive elements being accommodated within the box-like body which are adapted to move corresponding transmission elements which are associated with the leaf. The box-like body is telescopic in structure in order to be adapted in length to the width of the space of the door, or other window or door frame, with which it is intended to be used.

Abstract: A linear actuator, particularly for sliding doors and for sliding doors and windows in general, comprising a supporting body, to be fixed by corresponding fixing elements between the two jambs of a door or of a door or window frame, motor drive elements being accommodated and fixed within the supporting body and being adapted for the rotation of a driving gear, which is intended to mesh with a driven rack, which in turn is fixed to a leaf of the door to be moved in translation.

Abstract: A linear actuator, particularly for sliding doors and for sliding doors and windows in general, comprising a supporting body, to be fixed by corresponding fixing elements between the two jambs of a door or of a door or window frame, motor drive elements being accommodated and fixed within the supporting body and being adapted for the rotation of a driving gear, which is intended to mesh with a driven rack, which in turn is fixed to a leaf of the door to be moved in translation.

Abstract: A rotor for a permanent-magnet linear actuator, comprising a series of permanent magnets which are supported by a shaft associated with means for its rotation, the permanent magnets being arranged laterally adjacent in the direction of the longitudinal axis of the shaft, with polarities that are shifted out of phase, in succession, by a preset angle. Each permanent magnet is constituted by a flat body which comprises a central portion for fixing to the shaft and at least two opposite symmetrical pole shoes which form the poles, with an external profile shaped like a circular arc.

Abstract: A guide for a permanent-magnet linear actuator, of the type comprising a row of permanent magnets which are arranged side by side and substantially parallel and equidistant. The guide is constituted by a series of modular elements which can be interconnected in the direction of extension of the guide with interlocking elements for simplified fixing.