For info:
1-CINCINNATI MILICRON HEALD MODEL 273A ID GRINDER MACHINE SERIAL NUMBER DATE OF MFG. 1990 STK# 101821 =============================================== SPECIFICATIONS SUBJECT TO VERIFICATION: SPECIFICATIONS: MAXIMUM SWING OVER TABLE. . . . . . . . . . 32 1/2" MAXIMUM SWING INSIDE CHUCK GAURD. . . . . . . . 20" MAX HOLE LENGTH GROUND (EXT. BASE). . . . . . . 18" MAXIMUM HOLE DIAMETER GROUND. . . . . . . . . . 18" MAXIMUM INCLUDED ANGLE TAPER . . . . . . . 180 DEG. GRINDING SPEED. . . . . . . . . . . . . 0-18 F.P.M. RAPID TRAVERSE. . . . . . . . . . . . . . 18 F.P.M. WORKHEAD SPEEDS (REVERSIBLE). . . . . 20-500 R.P.M. WORKHEAD MOTOR . . . . . . . . . . . 1.5 HP FLOOR SPACE INCLUDING COOLANT TANK. . . . 96" X 91" NET WEIGHT (APPROX.). . . . . . . . . . . 6200 LBS. EQUIPPED WITH: FACING ATTACHMENT SINE BAR ATTACHMENT EXTENDED BRIDGE ASSORTED GRINDING WHEELS, SPINDLES, MISC. TOOLING.