SAMSTAR 40 X 120 MANUAL LATHE

Technical Description

The SAMSTAR 40 X 120 is a heavy-duty manual engine lathe engineered for precision turning and threading operations on large workpieces. Featuring a 120-inch distance between centers and 40-inch swing over bed, this machine accommodates substantial components with a 5-inch spindle bore and D1-11 camlock spindle nose. The lathe delivers variable spindle speeds ranging from 6 to 800 RPM across 18 selectable speeds, enabling optimal surface finishes for diverse materials. With 64 longitudinal feed options spanning 0.0037 to 0.9055 inches per revolution and corresponding cross feeds at half those rates, the machine provides exceptional feed versatility. The rapid feed capability reaches 160 inches per minute longitudinally, enhancing productivity. Threading capabilities are comprehensive, offering 51 metric thread pitches (1-240mm), 40 inch thread options (14-1/16 TPI), 53 module pitches (0.5-120mm), and 42 diametral pitch settings (30-1/8 TPI). The compound slide travel of 9 7/16 inches and cross slide travel of 22 13/16 inches ensure flexible tool positioning. The tailstock features a #6MT internal taper with 12 inches of quill travel via two-speed gearing. Powered by a 20 HP main motor with dedicated 1½ HP rapid traverse and 1/8 HP coolant motors, this machine weighs approximately 14,330 pounds and occupies 202 inches in length, 65 inches in width, and 67 inches in height. Standard equipment includes a splash guard, 3 and 4-jaw chucks, and coolant system, making it ideal for high-precision production work requiring extended workpiece capacity.