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THE HARIG E-20 ROTO-SPINDLE (P/N 175-100) IS AN ECONOMICAL EDM SPINDLE DESIGNED TO MOUNT TO CONVENTIONAL VERTICAL RAM EDM MACHINES, ENHANCING PRODUCTIVITY AND HOLE-MAKING SPEED UP TO 50%. THIS UNIT HOLDS 20MM TOOLING AND IS COMPATIBLE WITH HARIG FLUSH CHUCKS FOR SMALLER ELECTRODES. IT FEATURES A BALDOR 1/15 HORSEPOWER, 110V AC VARIABLE SPEED MOTOR, OFFERING AN OPERATIONAL RANGE OF 10-260 RPM. THE SPINDLE RUN-OUT IS SPECIFIED AT 0.0001", AND IT ALLOWS FOR EXCELLENT FLUSHING VIA A 1/8 -27 NPT FLUSHPORT. THE MAXIMUM CURRENT THROUGH THE SPINDLE IS 10 AMPS. THE SPINDLE HOUSING IS INSULATED FROM THE MOTOR. IT IS A COMPACT, LIGHTWEIGHT UNIT WITH A TOTAL WEIGHT OF 9 LBS, ALLOWING OPERATORS TO WORK WITH "TENTHS" FOR IMPROVED CONCENTRICITY.