Doosan Machine Tools has added the PUMA 2600 SY II to its lineup of high-productivity turning centers. The PUMA 2600 SY II is a high-performance, 10-inch class, subspindle Y-axis horizontal turning center designed to craft high precision parts from a range of difficult-to-machine materials.

The PUMA 2600 SY II has a newly designed bed for unprecedented rigidity and accuracy. A standard active thermal compensation system decreases the effects thermal deformation by 60 to 70 percent compared to the previous model. NTN sliding bearings have been applied to all axis box guide ways on the carriage, improving fine movement by more than 40 percent and wear resistance by more than 30 percent. The feed box and X-axis bearing mount have been reinforced for high rigidity.

The built in spindle minimizes vibration and provides better acceleration and a smooth, fast ramp-up. It generates a maximum 22 kW (30 hp.) and 599Nm (442.1 ft-lbs) of torque. Improved spindle run out (6 μm) has been achieved by changing the structure of the spindle bearings and making it more suitable to high precision and improved surface finishes.

The 12-station milling turret has also been redesigned for improved durability and increased clamping force. BMT tooling provides unsurpassed rigidity for heavy chip removal, fine surface finishes, long boring bar overhang ratios, and extended tool life.

The Doosan FANUC i series operation panel has a new ergonomic design and an updated Easy Operation Package (EOP) with improved setup, operation and maintenance programing.

"The new PUMA 2600 SY II is the end result of a scientific study to improve on every aspect of the previous model," states Jim Shiner, director of sales and marketing at Doosan Machine Tools America. "This objective approach allowed us to work with feedback from our customers and craft a turning center that meets their needs for speed, strength and accuracy."