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Doosan Machine Tools announces that its PUMA SMX super multitasking turning centers are now available with a lower turret for enhanced versatility and productivity. The turret will be available on both the 10” chuck (PUMA SMX2600ST) and 12” chuck (PUMA SMX3100ST) models.
Doosan’s PUMA SMX series is a twin-spindle, multitasking turning center built for completing complex parts in a single setup. Both turning spindles feature 0.0001° resolution on the C-axis for high-precision contouring, and the 12,000-rpm dedicated milling spindle features 0.0001° resolution contouring B-axis as well. With a Y-axis stroke of 11.8” (300mm) and an orthogonal X/Y structure, part accuracy and machine accessibility are both improved.
The addition of a lower turret allows operators to be even more productive on a single CNC machine. A 12-station static tool turret is standard on SMX ST models, and a 5,000 RPM milling turret is available as an option. The turret is also designed to accommodate steady rests, follow rests, tailstock centers and 2-jaw vises.
“Adding a lower turret to our PUMA SMX series makes a variety of new applications possible,” states Jim Shiner, director of sales and marketing at Doosan Machine Tools America. “This will be invaluable for shops that are looking to take on more complex parts and need a way to get them done more quickly and accurately.”
Related Glossary Terms
- centers
centers
Cone-shaped pins that support a workpiece by one or two ends during machining. The centers fit into holes drilled in the workpiece ends. Centers that turn with the workpiece are called “live” centers; those that do not are called “dead” centers.
- chuck
chuck
Workholding device that affixes to a mill, lathe or drill-press spindle. It holds a tool or workpiece by one end, allowing it to be rotated. May also be fitted to the machine table to hold a workpiece. Two or more adjustable jaws actually hold the tool or part. May be actuated manually, pneumatically, hydraulically or electrically. See collet.
- computer numerical control ( CNC)
computer numerical control ( CNC)
Microprocessor-based controller dedicated to a machine tool that permits the creation or modification of parts. Programmed numerical control activates the machine’s servos and spindle drives and controls the various machining operations. See DNC, direct numerical control; NC, numerical control.
- gang cutting ( milling)
gang cutting ( milling)
Machining with several cutters mounted on a single arbor, generally for simultaneous cutting.
- milling
milling
Machining operation in which metal or other material is removed by applying power to a rotating cutter. In vertical milling, the cutting tool is mounted vertically on the spindle. In horizontal milling, the cutting tool is mounted horizontally, either directly on the spindle or on an arbor. Horizontal milling is further broken down into conventional milling, where the cutter rotates opposite the direction of feed, or “up” into the workpiece; and climb milling, where the cutter rotates in the direction of feed, or “down” into the workpiece. Milling operations include plane or surface milling, endmilling, facemilling, angle milling, form milling and profiling.
- turning
turning
Workpiece is held in a chuck, mounted on a face plate or secured between centers and rotated while a cutting tool, normally a single-point tool, is fed into it along its periphery or across its end or face. Takes the form of straight turning (cutting along the periphery of the workpiece); taper turning (creating a taper); step turning (turning different-size diameters on the same work); chamfering (beveling an edge or shoulder); facing (cutting on an end); turning threads (usually external but can be internal); roughing (high-volume metal removal); and finishing (final light cuts). Performed on lathes, turning centers, chucking machines, automatic screw machines and similar machines.
