The AC series is Pietro Carnaghi's single-column vertical turning and milling center, built with a thermo-symmetrical frame fixed to the base. All linear axes ride hydrostatic pockets, and the crossrail is sized for severe cutting conditions.

Why a thermo-symmetrical frame on a vertical lathe?

A lathe that heats up unevenly drifts out of square, which shows up as form error on a precision ring. The AC's thermo-symmetrical single frame holds its geometry through the day, so the same machine finishes a delicate aeronautics part and roughs a heavy forging without losing accuracy.

• 1,600-3,200 mm turning diameter
• All-hydrostatic axes, 60-100 kW
• Thermo-symmetrical single frame
• 37/40 kW milling, 3,000-6,000 rpm

Against a conventional-frame vertical lathe, the AC holds its squareness through the shift — the reason precision finishing and heavy roughing share one machine.