Niles 60’’ Heavy Roll Lathe Model No. A60-24, Serial No. 24259, Tool No. 1434 Machine Weight...............................................................130,000 pounds Main Spindle Motor .......................................................................100 HP Machine Year ....................................................................................1959 Maximum Load B/T Centers (Max Load w/o Steady Rest) .........50 tons Maximum Distance B/T Centers (Max CC) ....................22 feet 6 inches Bed Length................................................................................35 feet Swing Over Carriage.................................................................................51 inches Swing Over Ways ...............................................................68 ¾ inches Face Plate Diameter ...................................................................60 inches Jaws ..................................................................................4 – 4 inch jaws Number of Carriages ...............................................................................1 Wear Plates ................................................................Hard Steel & Bronze Apron ...........................................................................................Electronic Tracer Unit .............................................................................................Yes Milling Attachments ...............................................................................No Tailstock Quill Diameter ..............................................................17 inches Tailstock Quill Travel ...................................................................20 inches Tailstock Quill Traverse .................................................By Hand (Manual) Tailstock Traverse ....................................By Power or By Hand (Manual) Number of Mechanical Speed Changes ..................................................3 Infinitely Variable Speed Ranges: -Faceplate Drive................................................................1.35 to 5.4 RPM -Faceplate Drive...............................................................5.48 to 21.9 RPM -Direct Spindle Drive.........................................................25.2 to 101 RPM Turning Long Feeds Inches Per Spindle Rev: -Fine Range......................................................... .005 to .0315’’ -Medium Range................................................... .0315 to .198 ‘’ -Coarse Range..................................................... .198 to 1.250’’ Cross Feeds Inches Per Spindle Rev – Long Feeds ...............Rates x 0.6 Tracing Feeds Inches Per Minute: -Low Range ........................................ .101 inches to 1.27 inches -High Range ........................................... .03 inches to 8 inches