BOST T4F CNC LATHE

Technical Description

This heavy-duty CNC lathe features a maximum swing of 78.74 inches and an extensive machining length of 354.33 inches, designed for large, precise workpieces. It utilizes Siemens 840D CNC control, allowing complex multi-axis operations with 360,000 degrees of C-axis positioning and +/- 90 degrees B-axis head auto-indexing. The lathe supports a 62.99-inch diameter 4-jaw chuck and can handle unsupported weight between centers up to 44,000 lbs. Axis travels include 393.37 inches on the Z-axis saddle, 60.63 inches on the X-axis cross slide, and 49.21 inches on the Y-axis slide, enabling versatile three-dimensional machining. The machine offers powerful turning capabilities, with 95.21 HP spindle power and a speed range of 36 to 300 RPM, alongside a C-axis torque of 40,000 Nm (37.5 HP). Rapid traverse and working feed rates for X, Y, and Z axes reach up to 393.70 IPM, optimizing productivity. Milling operations are supported by a spindle running from 8 to 3000 RPM powered at 69.73 HP. The tailstock features an 11.02-inch quill diameter with 7.08 inches displacement, providing robust workpiece support during long machining cycles. Structurally, the lathe weighs 149,812 lbs, embodying a rigid construction with a 37.40-inch cross slide width and a 27.56-inch cross slide section. The cross slide screw dimension is 2.6 inches with a 10-pitch, supporting heavy-duty tool feed. Overall, this high-capacity CNC lathe excels in precision turning, milling, and complex part manufacturing with a broad range of motion, making it ideal for large-scale industrial applications.