Mille Srl manufactures spirals in a wide range of diameters and thicknesses, made from carbon steel as well as stainless steel plates. This type of spirals is usually classified as calibrated and not calibrated.
Mille Srl also manufactures pressed spirals in carbon steel, stainless steel and wear resistant materials, either right or left handed. This manufacturing process allows a wide range of possible executions, from external diameter 160mm with thickness 3mm, to external diameter 3600mm and thickness 20mm.
Up to 800mm external diameter, the spirals pressed in a 360° pitch, over 800mm it is pressed in 180° and 120°sectors.