HAAS AUTOMATION, INC. ST-20 HORIZONTAL MACHINING CENTER

Technical Description

The Haas ST-20 is a compact CNC horizontal turning center designed for high-volume production environments. This machine features a single main spindle with a maximum turning diameter of 15 inches and turning length of 21 inches, accommodating bar stock up to 2 inches in diameter. The 8.3-inch chuck provides secure workpiece clamping for precision operations. Powered by a 20 HP motor, the main spindle reaches speeds up to 4,000 RPM, delivering consistent cutting performance across various materials. The machine is equipped with a 12-station hybrid turret that consolidates both turning and rotary tools, enabling flexible multi-operation machining within a single setup. Two controllable axes (X and Z) with optional third-axis capability provide comprehensive positioning flexibility, with rapid traverse rates of 945 IPM on both axes enabling efficient non-cutting movements. The 9.3-inch X-axis travel combines with 21-inch Z-axis travel to accommodate diverse workpiece geometries and complex profiles. Standard features include a Haas CNC control system, chip conveyor for automatic chip management, tool presetter for rapid tool changes, and rigid tapping capability for threaded hole production. Available options include an automatic door, dual-stage parts catcher, finishing sub-spindle, and the Automatic Parts Loader (APL) for unmanned production runs. With a compact footprint of approximately 143 x 90 x 92 inches and weighing 8,820 pounds, the ST-20 maximizes shop floor utilization while delivering the performance and reliability expected from Haas equipment, making it ideal for shops requiring versatile, high-productivity turning operations.