The ROMI ES-40-4 is a robust manual engine lathe engineered for versatility across tool room, production, and maintenance applications. This machine features a 20.08-inch swing capacity with a maximum distance between centers of 157.48 inches, enabling machining of large workpieces up to 25.2 inches in diameter. The lathe is powered by a 15 horsepower AC motor delivering 11.2 kW, with an 18-speed headstock ranging from 31.5 to 2,360 RPM to accommodate diverse machining requirements. The 2.56-inch spindle bore with ASA L1 nose configuration provides flexible tool mounting options. The swing over the cross slide measures 12.01 inches, allowing adequate clearance for complex turning operations. Constructed with hardened and ground gears and shafts that are dynamically balanced, the ES-40-4 employs pressure lubrication to minimize wear and ensure consistent performance. The rigid housing combined with an efficient transmission system delivers excellent accuracy with minimal vibration and noise. Standard equipment includes a 4-position square tool post on a rotating base, electromagnetic clutches for starting and reversing, and a safety system compliant with NR-12 standards. The machine accommodates multiple feed and pitch combinations through mechanical structure adjustments, supporting both metric and imperial thread settings. Optional accessories include follow rests, digital readers for X and Z axes, and various independent chuck sizes up to 630mm, making this lathe adaptable to specialized applications.