Cincinnati 273A

CINCINNATI MILACRON-HEALD "HIGH-PRECISION" UNIVERSAL INTERNAL GRINDING MACHINE W/EXTENDED BASE OPTION
273A
Year 1981


MAXIMUM SWING OVER TABLE EXTENSION, WORKHEAD
PARALLEL TO TABLE WITHOUT CHUCK GUARD,
PERMITS NO WORKSLIDE TRAVEL,
LIMITED TABLE TRAVEL ........................ 24-1/2"
SWING WORKHEAD SWIVELED +/- 90 DEGREES ....... 16"
SWING INSIDE STANDARD CHUCK GUARD ............ 20"
ANGULAR ADJUSTMENT OF WORKHEAD ............... 90 DEGREES
WORKHEAD POSITIONING SLIDE TRAVEL ............ 17-1/2"
MAXIMUM TABLE TRAVEL ......................... 20"
MAXIMUM GRINDING STROKE ...................... 16"
WHEELHEAD CROSS SLIDE TRAVEL ................. 1-1/2"
CENTER OF WORKHEAD SPINDLE TO FLOOR .......... 43-1/2"
DISTANCE WORKHEAD FLANGE TO EDGE
WHEELSLIDE ................................... 0 TO 29-1/16"
TABLE SPEEDS FOR GRINDING .................... 0 TO 18' FPM
WOKRHEAD SPEEDS - REVERSIBLE & VARIABLE
BETWEEN ...................................... 0 TO 500 RPM
RAPID TRAVERSE OF TABLE ...................... 18' FPM
ONE TURN OF CROSS FEED HANDWHEEL ............. 0.050" ON DIA.
CROSS FEED IN INCREMENTS, AT ONE OR
BOTH ENDS OF TABLE STROKE .................... 0.0001" TO .0005" ON DIA.
MINIMUM STROKE ............................... 0.125"
ONE TURN OF WORKSLIDE HANDWHEEL .............. 0.100"
ONE TURN OF TABLE HANDWHEEL .................. 3-3/4"

APPROXIMATE MACHINE WEIGHT ................... 7,500 LBS
APPROXIMATE FLOOR SPACE (MACHINE ONLY) ....... 84" X 38"

EQUIPPED WITH:
- EXTENDED BASE FACTORY OPTION
- HYDROSTATIC TABLE WAYS
- FEED BOX COMBINES AUTOMATIC AND MANUAL CONTROL FOR COARSE AND FINE FEED
- THIS MACHINE HAS THE SELECTOR SWITCH FOR THE "PLUNGE FEED" OPTION
- 5 H.P. WHEELHEAD MOTOR
- C-M HEALD "RED HEAD" I.D. GRINDING SPINDLE
UNIT: 411-150200
S/N: 120180
MAX. SPEED: 8,200 RPM
- 12" MAGNETIC CHUCK ON WORKHEAD
- FACING ATTACHMENT
- SINE BAR FOR PRECISION SETTING OF WORKHEAD SWIVEL
- MULTIPOSITION STOP FOR WORKHEAD SLIDE POSITIONING
- DRESSER
- ORIGINAL "HEALD' COOLANT TANK WITH "GUSHER" PUMP, 65" x 16" X 15"H TANK
- 3/60/230-460 VOLT MOTORS
- MACHINE IS PRESENTLY WIRED FOR 460 VOLTS, 13 AMPS SERVICE REQUIRED