2016 Haas ST-30 CNC Lathe

The Haas ST-30 is a heavy-duty CNC turning center with a reputation for rigidity and value that has made it a staple in production and precision job-shop environments. This 2016 example pairs a 10 inch hydraulic 3-jaw chuck on an A2-6 spindle nose with a 3 inch bar capacity, a 3.5 inch spindle bore, and a belt-drive spindle turning to 3400 RPM behind a 30 HP (22.4 kW) vector drive. It handles work up to 15 inch in cutting diameter and 32.5 inch in length, riding on 12.5 inch X and 26 inch Z travels with 945 ipm rapids for fast, repeatable cycles. Tooling is served by a 12-station bolt-on tool turret, and the machine runs the Haas control with rigid tapping, supported by a belt-type chip conveyor, high-pressure coolant at 300 psi, an automatic tool presetter, and a parts catcher for production-ready turning.

Compared with the Haas SL-30 it replaced, the ST-30 is a meaningful upgrade rather than a simple rebadge. Where the SL-30 rode an older, less rigid base and a slower control, the ST-30 introduced a stiffer dual-support cast-iron frame, a higher-torque 30 HP spindle, faster rapids, and Haas's current control platform for smoother, more accurate cutting. The result is tighter tolerances, better surface finishes, and more confidence taking on demanding turning work - a genuine step up for any shop moving off an earlier Haas SL-series lathe.