Mill, Ball, 11'6" X 18', Hardinge, 1,250 HP, (2) #D739658

(2) Hardinge ball mill, 11'6" (3.5 m) diameter X 18' (5.5 m) long, cylindrical, 1,250 HP (932 kW) motor, manufactured in 1975, shell speed: 16.9 RPM, rubber liners, gear and pinion ratio: 318/22, countershaft speed: 244.31 RPM, speed reducer size and type: Horsburgh & Scott, 1050P Single Reduction - Parallel, shaft centurion speed reducer and Eaton clutch: ratio 4.789:1, motor HP: 1250 General Electric, 1,185 RPM, 4,000 Volts, 3 phase, 60 Hz.