The tube to be cooled (substrate) moves in a straight line inside the box, where it is cooled before the spiralling phase. The refrigeration boxes are designed with different lengths to suit the specific requirements of the production line, ensuring that the substrate reaches the spiraliser at the correct temperature.

This precise temperature control is essential to maintain the material properties and ensure the quality of the final product.

Inspection of the inside of the cell is provided by a special porthole, which allows the internal conditions to be monitored without interrupting the process, thus ensuring greater operational efficiency. The machine is controlled by a PLC with customised software developed by Picena Frigor, and an LCD display with touch control.

This advanced system allows intuitive and precise management of machine parameters, optimising the cooling process and improving productivity.