ROTO Kruna d.o.o. for production and services was founded at the end of 2007. on the occasion of the success of the 32nd The International Innovation Fair, where the innovative Croatian product “Roto Raspa” was publicly and expertly presented for the first time.

“Roto Raspa” is an innovative Croatian product, a universal tool for processing by separating particles of soft materials such as wood, plastic, rubber, Styrofoam, artificial resins, etc., intended for installation on a manual rotary angle grinder. Due to the construction of the tool, the “Roto Rasp” can remove a larger volume of chips than is possible with a sanding plate or sanding paper. Ease of installation and use does not require special professional knowledge and skills.

The goal of “Roto Raspe” is to expand the range of tools for processing soft materials by separating particles. This tool enables processing with greater efficiency in terms of the amount of separated particles per unit of time compared to known tools for manual angle grinders. It is made of steel sheet 0.75 (ø115) and 0.80 mm (ø125) and is thermochemically treated by the nitriding process. It is made of steel sheet 0.75 (ø115) and 0.80 mm (ø125) and is thermochemically treated by the nitriding process. Separation of particles is carried out by protrusions on the working surface of the tool, which are also cutting blades, and under each protrusion there is an opening for removing the separated particle, which prevents the filling of the working surface of the tool and enables continuous cutting of the blade. “Roto raspa” has a rounded shape suitable for processing flat and inclined surfaces, as well as for processing edges etc.