The optimal system for different types of dough is the fixed column system with double spiral. Reduced friction means cooler temepratures for dough. Quality reduction gears guarantee serene function even after several years and guarantee durability.
This system keeps the dough round the mixer parts, thus ensuring more efficient mixing.
Homogeneous transfer of the dough between the two parts eliminates any residue or fibre damage.
In many cases the double spiral can do the work of two machines.