SOUTH BEND SB1056F MANUAL LATHE

Technical Description

The South Bend SB1056F is a precision manual lathe engineered for general-purpose turning and boring operations on medium to large-diameter workpieces. Featuring an 18.11-inch swing and 40-inch centers, this machine accommodates substantial work lengths while maintaining rigid support for accurate machining. The 3.15-inch spindle bore accepts standard collets and chucks for versatile workholding options. Powered by a 15 HP motor delivering 1,600 RPM, the lathe provides sufficient torque for heavy interrupted cuts and materials requiring sustained power delivery. The 11-inch swing over the cross slide enables machining of larger diameter components with clearance for tool turrets and work-holding fixtures. At 5,181 pounds, the substantial mass ensures excellent vibration dampening and dimensional stability during precision operations. The manual configuration emphasizes operator control and feedback, allowing skilled machinists to optimize feeds and speeds for specific applications. The machine is equipped with hand-scraped dovetail ways featuring adjustable tapered gibs for precise carriage alignment and minimal backlash. A carriage lock screw provides security for cutoff and precision facing operations, while graduated tailstock movements in tenths of an inch facilitate accurate drilling and boring to specified depths. The compound rest swivel, graduated to 360 degrees, accommodates angular turning and boring of bevels and tapers. This lathe represents a practical solution for job shops and production facilities requiring reliable precision machining capability without the complexity of CNC automation.