SAN SHING SP-3670 MANUAL LATHE

Technical Description

The SAN SHING SP-3670 is a heavy-duty precision manual lathe engineered for demanding industrial applications requiring substantial cutting capacity and reliable performance. With a 36-inch swing diameter and 70-inch centers, this machine accommodates large workpieces for extended turning operations. The substantial 4-inch spindle bore enables versatile tooling configurations and accommodates various workholding devices, supporting both standard and optional spindle nose configurations including A2-8, A2-11, and D1-11 options. Powered by a robust 15-horsepower motor, the SP-3670 delivers consistent cutting force across its operating range, reaching maximum speeds of 1,000 RPM with 12 selectable speed changes for optimized material engagement. The machine features precision longitudinal feeds ranging from 0.05-0.7mm per revolution and cross feeds of 0.025-0.35mm per revolution, enabling fine surface finishes and accurate dimensional control. With a 27.5-inch swing over the cross slide, the lathe provides adequate clearance for complex turning and facing operations on moderately sized components. Constructed from high-strength FC-25 cast iron with box-structured bed sections, the lathe bed features a 510mm width and demonstrates the robust construction characteristic of SAN SHING's precision heritage. The machine accommodates metric threads from 0.8-14mm and inch threads from 2-28 per inch, supporting diverse threading applications. Z-axis rapid traverse reaches 3.7m/min, enhancing productivity during non-cutting movements. This configuration represents an industrial-grade turning center suitable for job shops, manufacturers, and production environments requiring reliable heavy-duty machining capabilities.