BLUE VALLEY MACHINE AND MANUFACTURING COMPANY, INC.

The Blue Valley Model 45 and 65, Ring and Circle Shears are designed and built for precise performance and year-after-year dependability.

For increased power and efficiency, these Blue Valley models feature two motor driven blades, and achieve a cutting speed of 40 feet (12.2 m) per minute. From the point where the blade penetrates and separates the material, the blank will be sheared in one pass. The "plunging power" of the upper blade is supplied by a hydraulic cylinder that makes use of an adjustable stop. This feature not only enables the operator to repeat the depth of the cut precisely from piece to piece, it also acts as a safeguard to prevent over-loading the machine. Machines are shipped fully assembled and meet customer's electrical voltage requirements. Blue Valley Ring and Circle Shears are available in either Models 45 & 45B or Models 65 & 65B. Models 45 & 45B feature a 1/4" (6 mm) capacity. Models 65 & 65B are rated at a 3/8" (9 mm) capacity. The depth of the throat designates the difference between the standard and the "B" models, within each capacity. The standard Model 45 shear has a 15 l/2" (395 mm) depth throat, giving the machine the ability to cut a 72" (1800 mm) diameter circle from a 72" (1800 mm) square blank, without requiring the corners to be trimmed. The Model 45B has a 30" (760 mm) throat, allowing a 12'-3" (3700 mm) circle to be cut from a 12'-3"square blank, without trimming the corners. The minimum cutting diameter for both 45 models is 12" (300 mm). The standard Model 65 shear features a 23" (585 mm) depth of throat and can cut a 100" (2500 mm) diameter circle from a 100" (2500 mm) square blank. The Model 65B, with a 36" (915 mm) throat, will accommodate a 12'-3" (3700 mm) square blank. The minimum diameter for Models 65 and 65B is 15" (380 mm). Capacities are rated in mild steel. For shearing stainless steel, the machine capacities must be down-rated approximately 40 percent.

Sketches of Circle Shears