Since 2003, the 3R company has been engaged in producing concrete specimens grinding machines, and is today at the leading position, with more than 200 machines sold. These machines belong to a strong range of 3 models : the automatic double face TWIN-MATIC, the automatic simple face ONE-MATIC, and the semi-automatic simple face MINI-MATIC.

Being replaced little by little to the sulfur surface finishin, the 3R concrete grinding machine is recognize int all the civil engineering laboratories, from the research laboratory to the site laboratory, but aslo the “Ready to Use” concrete plant or the Educational laboratory.