NILES A-60-24 MANUAL LATHE

Technical Description

The NILES A-60-24 manual lathe is a heavy-duty engine lathe engineered for large-scale industrial turning operations. With a machine weight of 130,000 pounds, it provides exceptional stability and rigidity for demanding machining tasks. The main spindle motor delivers 100 HP, supporting robust cutting performance. The maximum load capacity between centers is 50 tons without the use of a steady rest, and the maximum distance between centers is 22 feet 6 inches, with a total bed length of 35 feet. The lathe offers a swing over carriage of 51 inches and a swing over ways of 68 ¾ inches, accommodating large workpieces. The face plate diameter is 60 inches, equipped with four 4-inch jaws. The bed features hard steel and bronze wear plates for durability and smooth operation. The tailstock quill has a diameter of 17 inches and a travel of 20 inches, with manual traverse capability, while the tailstock itself can be traversed by power or manually. The lathe provides three mechanical speed changes and infinitely variable speed ranges: faceplate drive from 1.35 to 5.4 RPM, faceplate drive from 5.48 to 21.9 RPM, and direct spindle drive from 25.2 to 101 RPM. Turning long feeds are available in fine (.005 to .0315 inches), medium (.0315 to .198 inches), and coarse (.198 to 1.250 inches) ranges, with cross feeds at rates multiplied by 0.6. Tracing feeds range from .101 to 1.27 inches per minute (low) and .03 to 8 inches per minute (high), ensuring precise control for complex turning operations.