This is the promo-video of Aquajet. Company introduce this system at World of Concrete 2019 in LasVegas
Hydrodemolition robots, such as the Ergo System, remove concrete to a preset depth consistently. Alternatively, a hand lance will likely leave inconsistent depths due to being held by an operator. This means contractors may have to do another pass with handheld breakers to even out the surface.
![](https://i.ytimg.com/vi/URHjJtOA1eY/maxresdefault.jpg)