SAN SHING SF-28250 MANUAL LATHES

Technical Description

The SAN SHING SF-28250 manual lathe is a heavy-duty precision machine engineered for robust and accurate turning operations. It features a maximum swing of 28 inches over the bed and 19.5 inches over the cross slide, accommodating a wide range of workpiece sizes. The lathe supports center distances up to 250 inches, enabling long workpiece machining. It is powered by a 15-horsepower motor, delivering spindle speeds up to 1,000 RPM, suitable for various cutting tasks requiring different speeds. The spindle bore diameter of 4 inches allows the passage of larger workpieces or tooling through the spindle axis. Constructed from high-strength FC-25 cast iron, the lathe bed ensures excellent rigidity and vibration damping for precision and durability during heavy cutting. The bed design incorporates a box-section lower portion for enhanced structural integrity. The machine includes 12 selectable spindle speeds enabling versatility for different materials and operations. Longitudinal feed rates range from 0.05 to 0.7 mm per revolution, with cross-feeds adjustable between 0.025 and 0.35 mm per revolution, allowing fine control over cutting depth and quality. Additional features include a compound rest travel of 250mm (10 inches) and quill travel of 260mm (10 inches) with Morse Taper No. 5 for both spindle and quill centers, supporting standardized tooling and precision alignment. The robust design and powerful motor make the SF-28250 suitable for demanding industrial machining tasks requiring long bed capacity, high rigidity, and operational flexibility. This lathe integrates durable components and precise control functions to ensure dependable performance in heavy machining environments.