STM developed a specific system for the concrete placement, both for conventional concrete both for RCC concrete. RCC concrete is mainly employed for gravity dams. To reduce the entire duration of the construction site, to meet operative, financial, environmental benefit and to deliver as soon as possible such important infrastructure to the local community, contractors are increasingly looking for equipment able to guarantee them continuous feeding with flexible use mode. These features are provided by a conveyor line able to follow the dam growing, with special devices as elevation tools for conveyors and distribution devices as swingers, crawler placers, tripper conveyors.