HARDGROVE GRINDABILITY INDEX ( HGI ) POWER SOURCE : Gear motor, 3 Phase, 0,5 HP / 0,4 KW 220 – 380 V, 50 Hz, 4 Pole OUT PUT : 20 Rpm BALL GRINDER : 8 Pieces Steel Ball 1” Diameter Completed With Digital Preset Counter, And Three Optimal Loader Dimensions : 65 x 50 x 50 cm