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HARDINGE COBRA 51 CNC TURNING CENTER Spindle configuration ANSI A2-6" Round 20C collet (Through cap) 2.0" Maximum turning length with collet 14" Maximum machining diameter 8.25" AC Digital spindle drive system Torque rating (intermittent) 63 ft.-lb. @1,666 RPM base speed Torque rating (continuous) 47.2 ft.-lb. @1,666 RPM base speed Speed range (1 RPM steps) 45 to 4,500 RPM Maximum swing diameter over upper way cover 21.0" Maximum Z-Axis travel with collet 14.0" Maximum X-Axis traverse rate 472 IPM Maximum Z-Axis traverse rate 787 IPM Maximum Z-Axis thrust 1,500 lbs. Vertical turret (Bi-directional) Maximum square shank tool size 3/4" Maximum round shank tool size 1-1/4" Positioning: Manual/Hydraulic quill Travel of tailstock base 22.0" Maximum thrust @ 90 PSI 1,500 lbs. Compressed air requirement 70 to 90 PSI Coolant tank capacity 21 Gallons Machine dimensions 91.69"L x 65.6"W x 68.1"H Electrics 230 Volts, 3 PH, 60 Cycle Spindle motor 15 HP / 20 HP (cont. / 30 min.) Digital servo motors and absolute encoders |