TOS SU-90A MANUAL LATHE

Technical Description

The TOS SU-90A is a manual heavy-duty engine lathe designed for large-scale turning operations. It features a robust 35-inch swing over the bed and a substantial 252-inch (17 feet) distance between centers, accommodating long workpieces. The lathe’s spindle bore measures 2.5 inches in diameter, supporting sizable tooling and bar stock. Powered by a 20-horsepower motor, it delivers spindle speeds ranging from 6 to 900 RPM, enabling precise control across varied materials and machining tasks. The swing over the cross slide is 23 inches, allowing larger diameter parts to be machined with the tool post mounted on the carriage’s cross slide. The machine’s substantial weight of 24,000 pounds ensures exceptional stability and vibration resistance during heavy cutting. Its overall footprint measures approximately 30 feet in length, with a width of 68 inches and height of 64 inches, reflecting its industrial-scale capacity. Additional features commonly associated with the TOS SU-90A include a 4-way rapid traverse carriage, a 36-inch four-jaw chuck, steady rests for supporting long workpieces, a coolant pump with chip pans for thermal and chip management, and an automatic braking system for safety and precision. Its design supports both inch and metric threading. This lathe’s durability and comprehensive specifications make it suitable for demanding machining operations in heavy manufacturing environments. The machine is noted for its solid construction, precise mechanical controls, and versatility in handling large, heavy parts.