Spooling is a process where narrow strips are welded (through TIG or Microplasma welding technique) together end-to-end during the winding process so as to form a single, large traverse wounded coil.

Spool enable several advantages for customers:
-    Elimination of dead time to change coils
-    Reduction of scraps at the beginning and end of the coil
-    Smaller required space in the stock for rings
In the latest years, Giuseppe & F.lli Bonaiti has installed and developed new lines that join the slitting phase to the spooling.