Auger and Archimede’s screw
- The “S” type spirals technologically represent the best of what the market can offer regarding quality, accuracy, sturdiness and durability.
- The spirals of the type “R” combine the reliability of operation and speed of assembly affordability.
- The Bertuzzo flexible spirals guarantee great flexibility, torsion resistance and perfect functioning of the curves.
- Cold pressed spiral obtained through presswork, combine precision and mounting facility with durability and service wear resistance.

