POREBA TR 115B/80 MANUAL LATHE

Technical Description

The POREBA TR 115B/80 manual lathe is a heavy-duty machine designed for machining large workpieces with precision. It features a 45.27-inch swing over the bed and 31.5 inches swing over the cross slide, with a 58-inch swing in the gap and an 18.5-inch gap length, allowing for large diameter turning. The center distance between spindle and tailstock is 80 inches, supporting long workpieces. The spindle has a 4.250-inch bore and an A-2-11 spindle nose, operating at speeds from 5 to 500 RPM to accommodate various machining operations. The lathe includes a 25-inch 3-jaw chuck for secure workpiece holding. Feed rates range from 0.035 to 5.0 for cross feeds and 0.07 to 10.0 for longitudinal feeds, enhancing versatility in cutting and threading. It supports threading from 1/2 to 60 TPI (inch) and 0.25 to 120 mm (metric), enabled by its 2.75-inch diameter lead screw. The tailstock features a #6 Morse taper, 12 inches of travel, and 5.5-inch diameter, facilitating drilling and supporting operations. Powered by a robust 50 HP main motor, this lathe occupies a floor space of 196 by 75 inches and stands 79 inches tall. The machine weighs approximately 28,000 lbs, underscoring its heavy-duty build for stable and precise operation in industrial environments. This configuration makes it suitable for medium to large-sized shaft and cylindrical workpiece production where rigidity and power are essential.