SUMMIT MACHINE TOOL LLC HB120 HORIZONTAL MACHINING CENTER

The Summit HB120 is a compact horizontal boring mill designed for precision machining operations on medium-sized workpieces. It features a 5-inch diameter spindle with a #50 taper, capable of speeds ranging from 45 to 1,500 RPM across 12 discrete steps, with a 10 HP main drive motor. The machine accommodates workpieces up to 2,640 lbs on its 43.25" x 31.5" precision-ground table, positioned at 49 inches from the floor for ergonomic accessibility. The HB120 provides three axes of motion with substantial travel capacity: 47 inches each on the X (horizontal) and Y (vertical) axes, and 31.5 inches of saddle travel on the W axis. Maximum rapid traverse reaches 113 IPM across all axes, while feed rates range from 0.001 to 34.4 IPM, accommodating both fine finishing and aggressive production cuts. Standard features include precision hardened bedways, full automatic lubrication, preloaded ballscrews with double nuts on all feed axes, and advanced PLC control electronics. The machine incorporates hydraulic clamping on X, Y, and W axes for secure workholding, full steel telescoping way covers for protection, and an air-powered drawbar for rapid tool changes. An optional auxiliary rotary table measuring 23.625" x 23.625" expands machining capabilities for complex geometry work. The unit weighs approximately 17,160 lbs and requires 220/440V three-phase power, making it suitable for production shops, tool and die operations, and precision manufacturing facilities.