A motorized maneuvering device (1) intended to manoeuvre a moving windable fabric screen (3), the motorized maneuvering device includes an actuator (4), comprising a hollow housing (41) containing a gear motor and a mounting end-plate (7a) which has a first support (11) extending from the end-plate along a first longitudinal axis (X-X′) and cooperating with the housing (41) of the actuator (4) and a second support (12) extending from the end-plate along a second axis distinct from the first axis (Ya-Ya′, Z-Z′). The hollow housing, notably the tubular hollow housing, of the actuator, is closed by the first end-plate support.