The DNM vertical machining centers from Doosan are now equipped with Tsudakoma TN161 or TN201 rotary turning tables. The TN models incorporate specially designed, double-lead worm gears that mesh the full length of the teeth. The machine also features a pneumatic clamping device for added power. Together, these features improve indexing speed by 50 percent and clamping force by 250 percent, resulting in faster cycle times and higher accuracy, even when machining far from the tilting axis, the company says.

Tsudakoma rotary tables are standard on the DNM400-31iA5 vertical machining center with a 36.2” x 17.1” loading area, as well as on the DNM500-31iA5 vertical turning center with a 47.2” x21.2” capacity. Both models are powered by a 30-hp spindle motor capable of driving CAT 40 tools at speeds as high as 15,000 rpm, and generate as much as 1,655 lbs of thrust along the X and Y axes, and 3,611 lbs along the Z axes.

The bed is constructed of fine-grain Meehanite, and the table is fully supported by the saddle in all positions with no table overhang. All axes have highly precise linear motion guideways, add a “Big Plus” tooling system with dual contact between the machine spindle face and the toolholder flange, the DNM is built for tough cutting conditions.