G.A. GRAY 507792 VERTICAL BORING MILL

The G.A. Gray 507792 Vertical Boring Mill is a robust machine designed for precision turning operations, featuring an 84-inch table diameter and an impressive maximum turning diameter of 96 inches. It offers substantial capacity with a maximum swing of 90 inches, 94 inches between columns, and a maximum height under the rail of 84 inches. The mill is equipped with a 75 horsepower motor to drive the table speeds, which are variable between 1.0 and 194 RPM (also listed as 0-100 RPM). It employs a dual-ram system and a single side head for versatile machining. Key strokes include a 30-inch turret stroke and a 48-inch ram stroke, with the head capable of swiveling up to 45 degrees. Feeding capabilities range from 0.0025 to 0.250 inches per revolution, supported by a rapid feed rate of 120 inches per minute. Weighing 110,000 lbs, this heavy-duty machine is identified by Stock Number 6185 and Serial Number 9763.