AMERICAN TURNMASTER LA 40240 MANUAL LATHES

Technical Description

The American Turnmaster LA 40240 is a heavy-duty manual engine lathe engineered for large-scale production and heavy turning operations. This machine features a 40-inch swing over bed, accommodating workpieces up to 40 inches in diameter, with an impressive 240-inch distance between centers for extended workpiece lengths. The 4.13-inch spindle bore accepts large-diameter workholding accessories and allows for through-spindle mounting of extended tooling. Powered by a robust 15 horsepower motor, the lathe delivers sufficient torque for demanding machining tasks including roughing, finishing, and precision work on cast iron, steel, and other ferrous materials. The 400 RPM spindle speed is optimized for heavy cutting operations requiring substantial feed rates and depth of cut. The 29-inch swing over cross slide provides extensive lateral tool positioning capability, enabling complex contouring and stepped diameter work. The machine incorporates traditional manual operation with cam-lock spindle engagement and power-assisted feed systems for efficient chip removal and consistent surface finishes. Manual speed and feed selection allows operators to optimize cutting parameters for specific applications. Built on a rigid, multi-way bed design with precision ground ways, the lathe maintains accuracy and repeatability throughout extended production runs. This configuration makes the LA 40240 ideally suited for job shops, maintenance facilities, and manufacturers requiring versatile, reliable metalworking capability with manual control and proven durability.