Abstract: A process and device for automatic sampling includes a travelling gantry under which a vehicle can be brought carrying a tank containing the product to be tested. The gantry includes an upper horizontal beam which includes a carriage enabling the support and horizontal movement of a sampling probe. The sampling probe is put under low pressure by an aspirator in order to draw the product towards a receiver. The gantry also includes a sampler device for the product connected to the receiver. The various parts are carried by the gantry and connected to a control desk. The device is used notably for the sampling of milk products, flours, cements, liquid chemical products, wines, oils and fuels.