HAAS ST-20Y CNC LATHE

Technical Description

This Haas CNC control-equipped turning center delivers robust performance for precision machining operations with dual-spindle capability. The machine features 8.40 inches of X-travel and 22.50 inches of Z-travel, accommodating workpieces with a maximum turning diameter of 11.75 inches and cutting length of 22.50 inches. The primary spindle boasts a 30 HP motor with 4,000 RPM capability and accommodates an 8.3-inch hydraulic chuck with a 3.50-inch bore and A2-6 nose, while supporting bar stock up to 2.50 inches in diameter. The secondary spindle operates independently at 6,000 RPM with a 1.50-inch bore, 5.3-inch chuck, and A2-5 nose, enabling simultaneous machining operations. With 23 inches between centers and a 21-inch maximum swing over bed, the machine efficiently handles complex turning tasks. The 24 tool-position turret facilitates rapid tool changes, while live milling capability reaches 6,000 RPM for multi-axis operations. Advanced Haas CNC control features include high-speed machining techniques with tangential control and look-ahead functionality for enhanced surface finishes and reduced vibration. Thermal compensation capabilities automatically monitor and adjust for thermal expansion, ensuring consistent precision in demanding applications. The system supports robust spindle synchronization for coordinated dual-spindle operations and rotary table integration. High-pressure coolant delivery at 300 PSI provides superior chip evacuation and tool cooling. This configuration combines production efficiency with precision, ideal for medical, aerospace, and automotive component manufacturing requiring tight tolerances and high throughput capabilities.