Maybe more than any other high-volume builder of turning and machining centers, Doosan Infracore has continually kept one foot firmly planted in the “commodity” machine tool market while the other traverses the ever-changing landscape of machines based around multi-function, hybrid, and emerging technologies. Yes, Doosan’s lineup includes a fair number of traditional style three and four axis vertical and horizontal machining centers, and two-axis lathes. But the preponderance of new machines being introduced by Doosan feature advanced functions, higher speeds, combined process, and multi-axis capabilities.
Sure, there are always going to be a few companies who carve out a “specialty” or “advanced technology” niche. These companies don’t necessarily foretell an industry-wide shift or direction. But when a conservative, more traditional company like Doosan introduces advanced technology equipment at the rate they have been, something is up.
What does this tell us about the future of machining in the United States? The future is now and the most successful metalworking shops know that they must do more to add value, reduce cost, improve quality, and deliver parts that are difficult to produce in an efficient manner. So, when a company that has always exceled in the production of basic but solid machinery, shifts its emphasis to the production of more sophisticated machines, it’s showing us the direction of the new normal in metalworking.
With the introduction of their latest machines, Doosan continues its strategy of addressing market trends and needs by “filling in” the small, medium and large envelope of more complex machine tools already in their lineup.
The PUMA SMX series of multi-tasking turning centers feature 5-axis turning/milling centers with X, Y, Z, B, and C axes. The B axis enables unlimited secondary milling function on and off centerline of the part. The 7-axis “S” version includes a programmable sub spindle (A1 and C2). The A1 axis allows the sub spindle to move along centerline to pick up the first operation completed part directly from main to sub spindle. And the C2 axis provides unlimited rotational positioning and feed of the spindle like a rotary table. Doosan introduced the SMX 2600 and SMX 2600S models with 35 HP, A2-8” spindle, and 10” chuck first and have now filled in with the SMX 3100 and SMX 3100S models with 40 HP, A2-11” spindle, and 12” chuck. With practically infinite capability to handle any part geometry, machining capability is limited on by the imagination.
The PUMA 5100 series offers the 5100 version, a large envelope, heavy duty 50 or 60 horse power 2-axis turning center (the one foot firmly planted in the traditional side of the machining marketplace). Taking the series one small step further, the 5100M is a basic turning/milling center with simple on-center secondary milling capability. The 5100Y offers turning and on and off center secondary milling function, with considerably less flexibility than the SMX series. The main difference between a B and Y axis is that a B axis is programmable infinitely both above and below centerline but also in the rotational axis in 0.001 degree increments as well as at a feed rate in the rotary axis.
The PUMA GT series is expanded to include the GT2100 and GT2600 2-axis and 2100M and 2600M 3-axis versions. These box way equipped models reflect the traditional solid, though basic function design of traditional Doosan lineup.