For info:
SERIAL NUMBER: 640 MANUFACTURED: 1991 MODEL: MG1432A MAX SWING OVER TABLE...............12.6" NOMINAL DISTANCE BETWEEN CENTERS...40" GRINDING WHEELHEAD SWIVEL..........+/-30 DEGREES WORK HEAD DRIVE MOTOR..............7 HP DC WORK HEAD SPINDLE SPEEDS...........24 - 240 RPM (VARIABLE) WORK HEAD SWIVEL...................+/-90 DEGREES WHEEL HEAD MOTOR...................5 H.P. GRINDING SPINDLE SPEED.............840 / 1680 RPM MAX GRINDING WHEEL SIZE............16" X 2" X 8" HYDRAULIC TABLE SPEEDS.............1 - 131 FPM TABLE SWIVEL.......................+3/-9 DEGREES INTERNAL GRINDING SPINDLE MOTOR....1.5 HP SPINDLE SPEEDS (2).................10,000 / 15,000 RPM EQUIPPED WITH: INTERNAL GRINDING SPINDLE LIVE & DEAD WORKHEAD OIL CHILLER TABLE TRIP DOGS ADDITIONAL TOOLING: CHUCKS, WORKRESTS, DRESSER, CENTERS, BALANCE