12" x 80" SHEFFIELD "CRUSH­TRUE" Model 187 D CNC Crush Form Cylindrical Grinder; S/N 400824

(1) Used 12" x 80" SHEFFIELD "CRUSHTRUE" Model 187 D CNC Crush Form Cylindrical Grinder S/N 400824 This machine was purchased from a major aerospace manufacturer which closed their machining division in Phoenix, Arizona. The machine was set-up for crush form grinding of turbine engine shafts and was certified to FAA tolerances and standards. Specifications: Work Piece Diameter..............................................12"  (maximum) Work Piece Length..................................................80"  (maximum) Table Travel  (Z Axis)..............................................84" Wheelhead Travel  (X Axis).....................................19" (nominal) Swing Over Table....................................................12 1/4" Swing in Gap...........................................................15" Length of Table.......................................................128" Length of Gap .........................................................42" Grinding Wheel Diameter .......................................15" to 24" (maximum) Grinding Wheel Width..............................................1" to 9" (maximum) Grinding Wheel Form Depth....................................10" (nominal) Grinding Wheel Dressing Depth .............................12" (maximum) Grinding Wheel Speed (Variable)............................1,100 3,000 RPM Grinding Wheel Drive Motor.....................................35 HP  (Variable Frequency) Grinding Wheel Arbor Diameter...............................5" Grinding Wheel Arbor Flange Diameters.................14" Wheelhead Infeed Rate  (Standard Mode)...............0.005 to 0.475 IPM Wheelhead Infeed Rate  (Crushform Mode).............0.004 to 0.75 IPM Workhead Drive Speed (variable)............................35800 RPM (nominal) Workhead Drive Motor.............................................5 HP Tailstock Spindle Travel...........................................0 6"  (nominal) Tailstock Spindle Diameter.......................................4"  (nominal) Tailstock Spindle Taper ...........................................#4 M.T Electrical Characteristics..........................................480 Volts / 3 Phase / 60 Cycle Equipped With: G.E. / Fanuc Mark Century 2000 CNC Controls CNC ServoHydraulic Diamond Point Wheel Form / Profile Dresser 35 H.P. General Numeric Variable Frequency Spindle Drive Motor Glentek Permanent Magnet DC Servomotor Drives (X, Z Axis) 84" Z Axis Servo Drive with Precision Ballscrew System and CNC Interface  (Optional) Hydraulic Tailstock Spindle Travel 32" Newall Spherosyn DRO (ZAxis) 18" Futaba "Pulscale" High Resolution XAxis Linear Scale. Complete Hydraulic System with Controls. Complete Coolant System with Pump & Filter System. 12" Faceplate Live TailstockCenter SmogHog Mist Collector (optional) Overall Dimensions...................................................156" LR x 132" FB x 120 HT Weight.......................................................................26,000 lbs. (est.) F.O.B.........................................................................Casa Grande, AZ