Denver Equipment Company BALL MILL, Denver Batch THIS mlll may be used for BALL MILL, Hardinge Conical oanrar antoh ad MIII give long wearing life. Ball Mills – ATLAS MINE AND MILL SUPPLY INC. SPECIALIZES IN …. Hardinge 14' x 24' Ball Mill (1973) 2500 HP Synchronous Motor, 4160 Volt, Air Clutch, Lube System, Spare Pinon Gear, Discharge Trommel.