Johnford’s Super Lathe (SL) series is comprised of small- to medium-sized machines with chuck sizes ranging from 6" to 21" and bed lengths as large as 100". Standard features include a chip conveyor, programmable hydraulic tailstock, a minimum of 12 tool turrets and a Fanuc or Siemens CNC control system.
The 45-degree machine beds are constructed from Meehanite cast iron. All of the guideways are box ways with Turcite B. To optimize rigidity and accuracy, the spindle is mounted on double-row roller bearings, along with angular contact ball bearings. The quill inner and outer lining is precision-ground to fit the spindle, thus promoting concentricity.
Optional C-axis and Y-axis functions are available. The turning centers may be used in conjunction with the SL-300 bar feeder. Weighing 8,800 lbs, the bar feeder features 40-mm pretensioned ballscrews; 15.7" swing over bed; 13" swing over carriage; and three spindle options.
Editor PickRobot-Fed Multitasking Lathe with Conveyor
This machine can run for a long time without any operator intervention, and users can machine finished parts from slug stock or cast blanks while achieving the same high productivity as if they were machining from barstock, the company says.