J&M TL1860S MANUAL LATHES

Technical Description

The J&M TL1860S is a heavy-duty manual lathe engineered for precision machining operations on large workpieces. This machine features a maximum swing over bed of 1860 mm (73.23 inches), enabling machining of substantial cylindrical components. The swing over cross slide measures 960 mm (53.54 inches), providing considerable lateral capacity for complex turning operations. The lathe accommodates workpieces weighing up to 20 tons, making it suitable for industrial production environments. The spindle bore of 4.13 inches (approximately 105 mm) accepts standard tooling and allows for through-spindle operations. Spindle speeds range from 3 to 200 r/min via a four-step hydraulic transmission system (3-24, 6-48, 12-96, 24-200 r/min), facilitating versatile cutting speeds for varied materials. Feed capabilities include longitudinal feeds of 0.1-6 mm/r and cross feeds of 0.05-3 mm/r, with rapid traverse rates of 3000 mm/min longitudinally and 1500 mm/min cross-wise. The machine supports metric threads from 1-60 mm pitch and inch threads from 1/2 to 30 T.P.I. The tool section accommodates 45×45 mm tooling, and cross slide travel spans 700-800 mm depending on configuration. Power delivery is provided by a 55 kW DC main motor, supplemented by 1.5 kW rapid feed and tailstock motors. The robust cast construction and precision-ground bed ways ensure superior surface finish and dimensional accuracy, making this lathe ideal for high-precision production work requiring durability and repeatability.