Summary

The Haas ST-45Y with BMT75 is a large-frame CNC turn-mill center designed for turning, milling, drilling, and tapping operations on a single machine. It combines Y-axis motion, fully interpolated C-axis capability, and live tooling to enable multi-axis machining on complex parts in a single setup. Key features include a 12-station BMT75 turret, 7.0" spindle bore, and up to 44.0" cutting length, supporting large workpieces and secondary milling tasks on cylindrical components.

Key Capabilities

• CNC-turning with Y-axis travel allowing off-center milling, drilling, and tapping
• Live tooling on a 12-station BMT75 turret for multi-process machining
• Fully interpolated C-axis for contouring, orientation, and positional milling
• Large work envelope with 35.5 in max part swing and 44.0 in max cutting length
• Flexible tooling configuration supporting both OD and ID tools

Key Specifications

| Parameter | Value | Unit |

| Max Part Swing | 35.5 | in |

| Max Cutting Diameter (with BMT75 turret) | 27.50 | in |

| Max Cutting Length | 44.0 | in |

| Y Axis Travel | ±3.0 | in |

| Bar Capacity (with optional workholding) | 6.50 | in |

| Spindle Bore Diameter | 7.00 | in |

| Spindle Max Speed | 1400 | rpm |

| Live Tooling Max Speed | 4000 | rpm |

| Number of Turret Stations | 12 | |

| Spindle Max Power | 40.0 | hp |