Metso Horizontal ball mills 12ft diameter x 21ft, two mills available 
POWER: 1600 hp & 1194 RPM
CLUTCH: Eaton Airflex 38VC1200 , Dual wide
SPEED REDUCER: Metso Drives D1PSF110 speed reducer Ratio 6.111 : 1,
INCHES DRIVE: Moventas Inching Drive 4C225N, with Brake, Connected to the 
Non-working end of the main mill motor.
GEAR SET INFORMATION: Teeth: 262 (Gear), 23 (Pinion) Ratio: 11.39 : 1, DP: 1.25
Centers: 114.984,
Mill Speed: 17 RPM, % Critical Speed: 75%
TRUNNION BEARINGS SIZE: 54” X 16”, TYPE: Hydrodynamic Sleeve Bearings
TRUNNION BEAR LUBE SYSTEM: 650AL-Duplex Lubrication System 
MILL LINING: Rubber Liners
FEED ARRANGEMENT: Lined Spout Feeder with Seal Assembly
DISCHARGE ARRDT: Discharge Trunnion Liner, Trommel, and Discharge Housing
GRINDING MEDIA: Steel Grinding Balls
RECOMMENDED BALL CHARGE SIZE AND WEIGHT DISTRIBUTION: (At Nominal 35% Ball Charge) 
Total Ball Charge Weight: 105 Tons
Maximum Ball Size 
BALL SIZE (in.) 3.0”, % INITIAL CHARGE 20, WEIGHT (Tons) 21..
BALL SIZE (in.) 2.5”, % INITIAL CHARGE 25, WEIGHT (Tons) 26..
BALL SIZE (in.) 2.0”, % INITIAL CHARGE 30, WEIGHT (Tons) 32..
BALL SIZE (in.) 1.5”, % INITIAL CHARGE 15, WEIGHT (Tons) 16..
BALL SIZE (in.) 1.0”, % INITIAL CHARGE 10, WEIGHT (Tons) 10..
Contact us for a Price 
The price includes dismantling and loading 
Freight rates are also available