KURAKI KBT-13.A HORIZONTAL BORING MILL

Technical Description

The KURAKI KBT-13.A Horizontal Boring Mill is a high-capacity CNC machining center featuring a 5.12-inch spindle diameter and a 60-station Automatic Tool Changer (ATC). It is controlled by a Fanuc 31i-A5 CNC system (with some variants utilizing Fanuc 16M or 31i-B5). The machine is engineered for heavy-duty tasks, evidenced by its robust 70.86-inch x 86.61-inch table with a load capacity of 44,000 lbs. Travel distances are extensive, including 118 inches on the X-axis (horizontal table travel), 90 inches on the Y-axis (vertical head travel), 51 inches in column cross travel (Z-axis on some variants), and 27.56 inches of spindle travel (W-axis). The spindle is powered by a 40 HP motor (also listed as 32 HP or 30 HP) and achieves speeds up to 2,500 RPM across three ranges. A critical feature is the built-in B-Axis rotary table, offering high-precision indexing down to 0.001 degrees. The overall machine footprint is substantial, approximately 268.9 inches by 267.72 inches, with a total weight of 79,200 lbs, and includes features like a Chip Blaster system (700 PSI) and coolant-through-spindle capability.