Open Circuit Grinding. The object of this test was to determine the crushing efficiency of the ball mill when operating in open circuit. The conditions were as follows: Feed rate, variable from 3 to 18 T. per hr. Ball load, 28,000 lb. of 5 , 4 , 3 , and 2½ in. balls. Speed, 19.7 r.p.m.
Grinding balls for mining are generally used to break down secondary materials such as rock, cement and stone during the extraction of ores and metals. AISI steel grinding balls for ball mill applications typically have a tolerance of ±0.05/±0.10 and a density of 7.70 to 7.95.
With a wear performance up to 25% longer than the standard High Carbon Grinding Rod, the HTR50 has outstanding resilience and a hardness profile that has a high surface hardness and lower hardness core, weve developed a series of world class grinding rods thatll reduce mill consumption significantly.