For info:
YEAR - 1978 SPECIFICATIONS: STOCK # 107133 Magnetic Chuck Diameter............................: 36” Chuck Diameter.....................................: 18” Grinding Wheel Diameter............................: 20" Max Swing Inside Guard.............................: 52” Max Distance Under New Wheel.......................: 12” Wheel Speed........................................: 705 RPM Chuck Speed Range (6)..............................: 6,9,12,18,25 and 33RPM Feed Range.........................................: 0.004 - 0.080 IPR Table Weight Capacity..............................: 3,000 lbs. Spindle Motor......................................: 50 HP Chuck Life.........................................: 3/8” Approximate overall dimensions.....................: 106” x 62” x 92” high Approximate weight ................................:12,900 lbs. EQUIPPED WITH: FIXED TABLE DESIGN rectifier with neutrol wheel dresser segmented wheel mount motors and controls ELECTRICS -