An agricultural machine for transportation and distribution of bulk products, including a tank, which is mounted on a rolling chassis, which is provided with at least one sealable opening situated at the level of the bottom of the tank and which is equipped with at least one mobile device performing scraping of the bottom and favoring ejection of the product. An agricultural machine wherein the mobile device or each mobile device is mounted to rotate around a vertical shaft or axis, perpendicular relative to the plane of the bottom and including at least two separate radial arms, distributed around the axis and sweeping over substantially the entire surface of the bottom, wherein the thickness or the height of each arm relative to the bottom is smaller than the height of the lateral opening or of each lateral opening.