SAN SHING SF-3670 MANUAL LATHES

Technical Description

The SAN SHING SF-3670 is a heavy-duty precision manual lathe engineered for demanding industrial applications. This machine features a robust 36-inch swing over bed, accommodating workpieces up to 914.4mm in diameter, with an extended 70-inch distance between centers enabling the machining of elongated components. The lathe's swing over cross slide of 27.5 inches (700mm) provides substantial clearance for complex turning operations and tool positioning. Equipped with a 4-inch spindle bore and maximum spindle speed of 600 RPM, the SF-3670 delivers the power and precision required for heavy-duty metal cutting. The machine is powered by a 15-horsepower motor, providing adequate torque for sustained production runs. With 12 selectable spindle speeds, operators can optimize cutting parameters for various materials and operations. The lathe incorporates longitudinal feeds ranging from 0.05-0.7mm/rev and cross feeds of 0.025-0.35mm/rev, facilitating fine thread cutting and dimensional accuracy. Its construction utilizes high-strength FC-25 cast iron with a box-structured bed design, ensuring rigidity and thermal stability during extended machining cycles. The machine supports multiple spindle nose configurations and taper options, including M.T. No. 5 and M.T. No. 6 centers, enhancing versatility. Designed for manual operation, the SF-3670 represents a proven platform for small-to-medium batch production, prototype development, and specialized turning tasks. Its durable construction and comprehensive feature set make it suitable for job shops and manufacturing facilities requiring reliable, precision lathe capabilities for diverse applications.