2014 Doosan Puma 400LC CNC Lathe with Big Bore

The Doosan Puma 400LC is a big bore CNC lathe with a reputation for rigid, dependable heavy turning that has made it a staple in oil field, pipe, valve and large shaft production shops. This 2014 long-bed model is built on a one-piece 45 degree torque-tube slant bed with box ways and offers a 30.3 inch swing over bed, 21.7 inch maximum turning diameter, 81.7 inch maximum turning length and 86 inches between the spindle nose and tailstock center. The A1-15 spindle has a 7.12 inch bore and 6.55 inch bar capacity, runs to 1,500 RPM through a 2-speed gearbox and is driven by a 50 HP motor rated for 2,419 ft-lb of torque. Travels are X 14.3 / Z 84.8 inches with rapids of 630 / 710 IPM. A 12-station BMT turret with 1.25 inch square shank and 2.5 inch boring bar holders handles heavy OD and ID work, and the programmable hydraulic tailstock carries an MT 5 center. The machine runs a Fanuc 0i-TD control and is equipped with a 21 inch 3-jaw hydraulic chuck, a Schunk THL-400 self-centering hydraulic steady rest and a Hennig chip conveyor.

The Puma 400LC builds on the earlier Daewoo-era Puma 400 series lathes built before the Fanuc 0i-TD control package. The Doosan-built Puma 400LC moves to the Fanuc 0i-TD with USB and embedded Ethernet data transfer, nano interpolation, Doosan EZ Guide i conversational programming and Doosan tool load monitoring, while keeping the heavy curvic-coupling turret, isolated 2-speed gearbox and programmable tailstock that made the platform a long-part workhorse. For a buyer comparing an older Puma 400 series machine, this 2014 Puma 400LC delivers a more current control, faster programming at the machine and a steady rest and chip handling package already in place, so long shafts and big bore jobs can move into production with less retrofit work.