Kyocera
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Doosan Expands Range of Puma GT Turning Centers

Doosan has expanded its range of Puma GT series turning centers with four models: the Puma GT2600, GT2600M, GT2600L and GT2600LM.

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Doosan has expanded its range of Puma GT series turning centers with four models: the Puma GT2600, GT2600M, GT2600L and GT2600LM. Distinguishing features include a ridged 30-degree single piece slant bed design, box guideways, a non-lifting servo-driven turret and EZ Guide i conversational programming system.

Standard chuck size is 10” (optional 12” available) with a maximum swing over bed of 24.8” and swing over saddle of 18.1”. Maximum turning length is 25.9” on the standard Puma GT2600; 24” for Puma GT2600M, while the long bed versions offer 42.4” on the Puma GT2600L and 40.6” on the Puma GT2600LM. The maximum bar working diameter is 3.2” on all four models.

Box guideways are applied to all axes to increase dampening and rigidity, the company says. The Puma GT’s 30-degree single-piece slant bed design reduces the center of gravity of both the spindle and cross slide by 12 percent, which minimizes thermal growth and improves operator ergonomics. Rapid travels are 945 ipm (X axis) and 1181 ipm (Z axis).

The spindle design features three angular ball bearings in the front and cylindrical roller bearings in the rear. An optimized spindle overhang design has minimized the rotational inertial load, enhanced rigidity, and reduced acceleration/deceleration time. Spindle motor is 30 hp. Maximum spindle speed is 3,500 rpm. Maximum spindle torque is 459 foot pounds.

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