HAAS ST-28Y CNC LATHES

Technical Description

This is a high-performance CNC turning center featuring a 12-inch chuck capacity and 4-inch bar capacity, designed for precision multi-axis machining operations. The machine delivers 40 horsepower at a maximum spindle speed of 4,000 RPM, enabling efficient material removal on workpieces up to 21 inches in part swing with a maximum cutting length of 22.5 inches. The turning diameter reaches 11.75 inches, accommodating mid-sized components across various industries. The machine incorporates robust axis travel capabilities: 9.4 inches on the X-axis, ±2.0 inches on the Y-axis, and 22.5 inches on the Z-axis, supporting rapid positioning speeds of 472 IPM on X and Y axes and 945 IPM on the Z-axis for enhanced productivity. The A2-8 spindle nose configuration with a 4.62-inch bore diameter provides reliable tool compatibility. Advanced features include live tooling capability reaching 4,000 RPM and a main spindle C-axis rated at 5.0 HP with a maximum speed of 60 RPM, enabling complex multi-directional cutting operations. The control system utilizes interpolated motion and positioning technology for precise part geometry. Electrical specifications require three-phase AC power at 220 VAC with 70 amperes full-load draw. The integrated 55-gallon coolant reservoir supports extended machining cycles, while the system requires 4 SCFM of compressed air at 100 PSI for auxiliary functions, making it suitable for production environments demanding precision, versatility, and continuous operation capability.