BULLARD 56 DYNA TROL VERTICAL BORING MILLS

Technical Description

The BULLARD 56 DYNA TROL VERTICAL BORING MILL is a robust machine boasting a 56-inch table diameter and a maximum swing of 62 inches when the side head is above the table. It is powered by a 40 horsepower motor, achieving spindle speeds from 7 to 250 RPM. The machine offers a maximum height under the turret of 52 inches, with a table height (work height) of 37 inches. Weighing 72,000 lbs., its overall dimensions are 152 inches (Right-Left) by 122 inches (Front-Back) by 130 inches (Height). Motion control features include feeds ranging from 0.001 to 0.250 inches per minute, and a rapid traverse rate of 120 inches per minute. The boring mill is equipped with a 5-position turret and a 4-position side head, both featuring manual indexing. Key structural elements include 35 inches of rail adjustment and chrome ways on the rail. Head travel specifications include a 30-degree turret head swivel, 26 inches of vertical turret travel, and 34.5 inches and 31 inches of travel left and right of the centerline, respectively. The side head travel is 38.75 inches vertically and 23.75 inches in and out.