Abstract: The present invention relates to a removable separation device for separating off a space, in particular for an aircraft cabin, comprising: a fixed frame, a movable shutter, and two slide connections mounted between the fixed frame and the movable shutter, a slide connection extending along a corresponding lateral edge of the movable shutter so as to allow a translational movement of the movable shutter with respect to the fixed frame, a slide connection being formed by at least one roller borne by one of the elements among the movable shutter and the fixed frame cooperating with a corresponding rail fixed to the other of the elements among the movable shutter and the fixed frame.