This invention relates to a machine for making absorbent sanitary articles comprising at least an impermeable outer layer and an absorbent pad superposed on the outer layer. The machine comprises at least a feeding line for feeding the outer layer and a forming unit (110) for forming the absorbent pad. The forming unit (110) comprises: first feeding means (111) for feeding a first web (NW1) of non-woven fabric second feeding means for feeding a second web of non-woven fabric a joining station for joining the first web (NW1) to the second web of non-woven fabric a metering and depositing station where at least one distribution of absorbent polymeric material (SAP) is deposited on the first web (NW1) of non-woven fabric The metering and depositing station comprises: a containing and feeding unit (112) for the absorbent polymeric material (SAP) upstream of the first feeding means (111) for feeding the first web (NW1) metering and transferring means (113) for the absorbent polymeric material (SAP), these metering and transferring means (113) being interposed between the containing and feeding unit (112) and the first feeding means (111) and being provided with a plurality of calibrated cavities (114) on the outer surface. The containing and feeding unit (112) feeds the absorbent polymeric material (SAP) to the metering and transferring means (113) and the calibrated cavities (114) volumetrically meter the absorbent polymeric material (SAP) on the first web (NW1) of non-woven fabric.Linvention concerne une machine de fabrication darticles dhygiène absorbants comprenant au moins une couche externe imperméable et un tampon absorbant superposé sur la couche externe. La machine comprend au moins une ligne de distribution pour distribuer la couche externe et une unité de mise en forme (110) servant à former le tampon absorbant. Lunité de mise en forme (110) comprend : un premier moyen de distribution (111) pour distribuer un premier voile (NW1) de textile non-tissé un second
