Doosan Puma VTR adds Capto quick change
- January 31, 2021
The “C” models have a total tool capacity of 60 (compared to the 24-tool magazine of the VTR1012F) provided by up to two auto Capto heads (30 each of vertical and horizontal).
The VTR1012F and 1012FC models share dimensions like maximum turning diameter (49.2-in./1.24 m)) and chuck size (40-in./1 m), but Doosan super-sized the VTR1216FC up to a 63-in. (1.6 m) maximum turning diameter and a 55-in. (1.4 m) chuck. Any bigger and you’d have to drop in the parts by helicopter.
Their rigid machine structure, combined with a powerful high torque spindle, provides maximum cutting performance on tough metals like high nickel and cobalt-based heat resistant alloys.
A linear-type automatic tool presetter is the best way to measure and manage the large number of tools that can be stored in these VTRs which comes standard. In addition to tool setting, it monitors worn or broken tools automatically for better tool and spindle utilization.
The Z-axis ram is supported by eight points of guide contact so there is absolutely no deflection even at its furthest reach. It’s outfitted with a curvic coupling tool system that provides 24 tons of clamping force.
A rigid box way and a fixed X-axis crossrail, along with a balanced wide column parked on a one-piece base casting, makes these machines the toughest vertical turning centres in the industry. Perfect for large diameter power generation components and other super-large pieces that have a lower profile.
The main spindle on the VTR1012FC, which rotates at 600 r/min powered by a 90hp motor that generates over 14,000 ft-lbs of torque, has a twin helical gear design that minimizes backlash. To handle bigger, heavier workpieces, the spindle motor on the VTR1216FC spins at 400 r/min to generate 15,132 ft-lbs of torque.
A moveable enclosure for the machining area makes it easier to maintain a clean work environment.