Swing arms are mainly used for label frontal application on products moving on a conveyor. The swing arm is driven by an electric motor, which brings the tamp plate to any desired angle, programmable between 0° - 180°. The electric drive allow to be faster than pneumatic, and accurate in angling the arm/pad assembly. Differently from pneumatic, the arm acceleration and deceleration are settable, allowing a safer and fully controlled movement, and avoiding the adoption of dampeners. Depending to the production environment, it is enough performing to apply two labels on the same products, on frontal plus a further adjacent side (top or lateral).