A pendulum suspension device of a spray ramp, including:a fixed frame intended to be borne by an agricultural machine；a mobile frame intended to bear one or several spray ramps,at least one pendulum suspension connecting rod of the mobile frame on the fixed frame, andat least one actuation cylinder for varying the tilt of the mobile frame relatively to the fixed frame,remarkable in that the actuation cylinder is interposed between the fixed frame, and the connecting rod, and in that means are provided for displacing, relatively to the mobile frame, the attachment point of the connecting rod under the action of the actuation cylinder, so as to re-center the mobile frame relatively to the fixed frame when the attachment point is displaced.
