UNION CHEMNITZ PR III 180 HORIZONTAL BORING MILL

The UNION CHEMNITZ PR III 180 is a heavy-duty Horizontal Boring Mill, classified as a boring mill table type with RAM, part of the PR series featuring an integrated tool changer. This machine is designed for machining large, complex workpieces, capable of handling parts up to 40 meters in length, 10 meters in height, and 250 tons in weight. Key specifications include a 7.09-inch (180 mm) boring spindle diameter and a maximum drive power of 172.37 HP (or 84 kW). The machine features extensive travels, including an X-horizontal travel of the column up to 157.48 inches (up to 6,000 mm available), a Y-vertical travel of the head up to 118.11 inches (up to 4,000 mm available), and a Z-spindle travel of 59.06 inches. It operates under CNC control, offering a speed range up to 6,000 min-1, with a specified maximum RPM of 2,200 (or 2,000 min-1). Precision features include hydrostatic guidance and thermal monitoring of spindle bearings, ensuring high accuracy during complex machining operations.