HAAS AUTOMATION, INC. ST-45 HORIZONTAL MACHINING CENTER

Technical Description

The Haas ST-45 is a high-performance CNC turning center engineered for heavy-duty precision machining across aerospace, automotive, and manufacturing industries. This robust lathe features a 25.5-inch maximum turning diameter and 44-inch turning length, accommodating large workpieces with exceptional rigidity and thermal stability. The machine is equipped with a powerful 40 HP spindle (optional 55 HP) operating at 1,400 RPM, paired with a 7.0-inch bore and A2-11 spindle nose for versatile tooling options. The 12-station bolt-on turret with hydraulic clamping provides rapid tool indexing in just 1 second, while the optional 6,000 RPM live tooling enables complex multi-axis operations. Both X and Z axes deliver rapid traverse speeds of 710 IPM, supporting 17-inch X-axis travel and 44-inch standard Z-axis travel (expandable to 80 inches). The machine accommodates up to 6.5-inch bar stock and features a 2-speed gearbox for optimized cutting performance across varying materials and depths of cut. Additional capabilities include C-axis spindle orientation, high-pressure coolant systems up to 300 PSI, rigid tapping, automatic lubrication, and chip conveyors for efficient production environments. Weighing approximately 20,800 pounds and requiring 220V 3-phase 60Hz power, the ST-45 combines American manufacturing quality with advanced CNC control, offering exceptional value and performance for large-capacity production.