KNUTH NUMTURN 420 SI HORIZONTAL MACHINING CENTER

Technical Description

The KNUTH NUMTURN 420 SI is a CNC cycle-controlled horizontal lathe designed for flexible machining and easy operation. This machine features a maximum turning diameter of 17 inches over the bed with a turning length capacity of 36 inches, accommodating workpieces up to 550 pounds. The lathe is equipped with a powerful 10.1 horsepower main spindle capable of speeds ranging from 20 to 2,500 RPM, delivering 15 kVA total power consumption. The machine utilizes an 8-station tool turret with 1-inch shank sizes, enabling rapid tool changes for enhanced productivity. Dual electronic hand-wheels provide manual control of both X and Z axes, with rapid feed rates of 236.22 inches per minute on the X-axis and 314.96 inches per minute on the Z-axis. The tailstock features a 4 MT taper with a hydraulic quill offering 5 inches of stroke. This CNC lathe incorporates induction-hardened, ground guideways with preloaded ball screws and servo drives for precise positioning and dynamic feed control. The user-oriented cycle interface facilitates easy parts programming with multiple turning cycle options, while a USB port enables convenient data transfers. A sophisticated central lubrication system minimizes maintenance requirements. The machine measures 108 x 71 x 71 inches and weighs 4,884 pounds, making it suitable for maintenance and service departments as well as single parts production.