FIVES LANDIS CINCINNATI RK 350-20 CNC CENTERLESS GRINDER, FANUC CONTROL, 50 HP GRINDING SPINDLE

THE LANDIS CINCINNATI RK 350-20 IS A REMANUFACTURED CENTERLESS GRINDER DESIGNED FOR HIGH-PRECISION, HIGH-VOLUME THRU-FEED OUTSIDE DIAMETER GRINDING OF STEEL COMPONENTS. BUILT ON AN EPOXY GRANITE BASE FOR VIBRATION DAMPING AND STRUCTURAL RIGIDITY, THE MACHINE IS CONTROLLED BY A FANUC CNC SYSTEM WITH METRIC DIALS AND AN ENGLISH-LANGUAGE HMI, AND RUNS ON A 460V, 3-PHASE, 60HZ ELECTRICAL SUPPLY WITH A TOTAL CONNECTED LOAD OF 105 KVA. THE GRINDING WHEEL SPINDLE FEATURES A REMOVABLE DOUBLE-ENDED TWIN GRIP DESIGN WITH ANTI-FRICTION ROLLER BEARINGS, DRIVEN BY AN EXTERNALLY MOUNTED 37 KW (50 HP) AC MOTOR WITH VARIABLE FREQUENCY DRIVE. THE REGULATING WHEEL SPINDLE MIRRORS THIS CONFIGURATION AND OFFERS A ±6° FEED ANGLE RANGE, WITH A BRUSHLESS SERVO MOTOR PROVIDING VARIABLE SPEED FROM 15 TO 300 RPM. THE SINGLE-AXIS SLIDE DRIVE EMPLOYS A PRECISION, BACKLASH-FREE 63.5 MM DIAMETER BALLSCREW WITH AC BRUSHLESS SERVOMOTOR, DELIVERING 0.1-MICRON POSITIONING RESOLUTION. DRESSING IS HANDLED BY A TWO-AXIS CNC CONTOURING ATTACHMENT FOR THE GRINDING WHEEL AND A STATIONARY DIAMOND-TYPE DRESSER FOR THE REGULATING WHEEL, BOTH WITH 0.1-MICRON RESOLUTION. THE COOLANT SYSTEM USES WATER-SOLUBLE FLUID AT 4–10% EMULSION CONCENTRATION, DELIVERING 60 GPM AT 50 PSI THROUGH 30-MICRON FILTRATION, WITH TEMPERATURE MAINTAINED WITHIN ±3°C OF AMBIENT. THE MACHINE INCLUDES AN AUTO-LUBRICATION SYSTEM, INTEGRATED WHEEL BALANCING, A FULL MACHINE ENCLOSURE, AND A SPINDLE AIR PURGE SYSTEM. PRODUCTION THROUGHPUT REACHES APPROXIMATELY 750 MM/MINUTE ON A 40 MM DIAMETER REFERENCE PART, WITH CAPABILITY VALIDATED TO A 1.33 CPK STANDARD.