The quality of the steel balls of ball mills has an influence on the productivity and the consumption, which will affect the cost of the grinding media. It is wrong to only seek for high hardness and low consumption. The high hardness of steel balls and the low consumption of them do not mean low cost. In general, the prices of the steel balls of high hardness and low consumption are high. The high hardness of steel balls can not always increase the productivity of ball mills. On the contrary, it may reduce the productivity of ball mills. It is the high productivity that can make the consumption decrease. Thus, the most important standard for selecting steel balls is the high productivity of the ball mill and the low cost of the grinding media. Only in this way can people gain more benefits. Economic benefit is necessary for the existence and development of one company.
When people are selecting steel balls for ball mills, two issues are very likely to be ignored.
1. Some people think that the more hard the steel balls are, the better they are. However, this opinion is wrong. Steel balls have different hardness values. The most appropriate hardness value of steel balls should be chosen for the ball mill and the materials.
2. The density of steel balls is an issue which can not be ignored.