2012 CHIRON BIG MILL VERTICAL MACHINING CENTER

Technical Description

The 2012 Chiron BIG MILL is a 3- to 5-axis CNC vertical machining center from Chiron Group SE of Tuttlingen, Germany, representing the large-bed configuration of Chiron's MILL series. The machine employs a traveling-column architecture over a fixed long table, enabling machining of large, heavy workpieces without the limitations of a moving table. The spindle delivers 31.2 kW (approximately 42 HP) at 10% duty and reaches a maximum speed of 12,000 RPM through SK-40 or HSK-A63 tooling, providing the torque and surface speed needed for high-material-removal-rate cutting in aluminum, steel, and cast iron. The work table measures approximately 102.4 x 21.7 inches (2,600 x 550 mm), with X-axis (column) travel of 78.7 inches (2,000 mm), Y-axis travel of 35.2 inches (895 mm), and Z-axis travel of 24.8 inches (630 mm). A Siemens 840D sl CNC control provides 3-axis standard configuration with swivel-head 4th/5th-axis options available. Tool magazine capacity reaches up to 163 tools via chain magazine. Rapid traverse rates are extremely high, consistent with Chiron's high-speed machining philosophy across the MILL family. Overall machine dimensions and weight were not confirmed in publicly available documentation and should be requested from Chiron Group directly. The BIG MILL is well-suited for aerospace structural components, large mold bases, and production of large prismatic parts.