Gundrill Offers Five-Axis Milling, Tapping

The redesigned DeHoff 2072TC from Kays Engineering is a gundrilling machine with five-axis capability. The gundrilling spindle is mounted on a traveling column to provide the X- and Y-axis movement. A CAT-40 spindle is also mounted on the traveling column to enable secondary operations like milling and tapping. The machine is ideal for drilling complex hole patterns in such parts as heat exchangers, manifolds and molds.

The machine has a 2" (50.8-mm) gundrilling capacity and a 72" (1,829-mm) slide travel. The traveling column provides 60" (1,524-mm) of X-axis travel and 46" (1,168 mm) of Y-axis travel. Workpiece fixturing options include a stationary T-slot table and a rotary table with self-centering hydraulic vises. The rotary table provides B-axis rotation and is mounted on a W-axis slide to provide clearance for long workpieces. Load capacity for the entire worktable is 9,000 lbs (4,082 kg).

The machine features a cast iron drill head base with hardened and ground steel box ways, as well as a hand-scraped and fitted saddle, gibs, and straps. Compared to linear guideways and milled surfaces, this results in superior vibration damping, extended tool life, and improved accuracy and surface finish, the company says. Other features include a high-pressure coolant system and Beckhoff controls with G-code programming capability.