ball mill grinding ball Grinding Media steel ball HRC 55-66
GENERAL DESCRIPTION
This media guide is being provided by ZTIC to help you make the most effective use of grinding media in your mills. It includes the following sections.
SAG mills grinding balls
• Determination of your SAG mill’s power draw characteristics.
• SAG Mill Steel Charge Estimation tool provides an estimate of the percent steel in the charge of your SAG mill based on the power draw and the total charge volume.
• Ball impact energy chart to determine the impact energy of balls as a function of mill diameters.
• Glossary of the terminology and symbols used in this section.
Ball mills grinding balls
• Determination of the recommended size of grinding ball to add to your mill.
• Determination of your mill power draw characteristics, which are closely tied to the nature of the ball charge present in the mill.
• Determination of various characteristics of the ball charge in your mill which are important in terms of its grinding and wear performance.
• A glossary of the terminology and symbols used in this section.
Rod mills grinding balls
• Determination of the recommended rod size to add to your mill.
• Determination of your mill power draw characteristics.
• A glossary of the terminology and symbols used in this section.
SAG Mill grinding balls
GENERAL DESCRIPTION
CITICIC provides grinding balls 100 - 165 mm (4" - 6.5" aprox.), specially designed for SAG mills.
CHEMISTRY
| Limits | C | Mn | P
(max.) | S
(max.) | Si | Ni
(resid.) | Cr | Mo | Cu
(resid.) | Al |
| Upper Limit | 0.90 | 1.02 | 0.022 | 0.022 | 0.40 | 0.10 | 1.05 | 0.15 | 0.15 | 0.05 |
| Lower Limit | 0.70 | 0.80 | - | - | 0.20 | | 0.70 | 0.03 | - | 0.02 |
HARDNESS (HRC)
| Series | Surface
(min. - max.) | Volumetric
(min. - max.) | Center
(min.) | Applications |
| HH Series | 61 | 64 | 58 | 62 | 50 | Mills with minimal ball to liner impact |
| S Series | 58 | 62 | 56 | 60 | 50 | Normal milling operation |
| T Series | 56 | 60 | 55 | 60 | 50 | Mills with higher chance of ball to liner impact |
HRC: Hardness Rockwell
HH: High Hardness
S: Standard
T: Tough
Ball mills grinding balls
GENERAL DESCRIPTION
CITICIC provides grinding balls 22 - 100 mm (0.88" - 4" aprox.), specially designed for ball mills.
CHEMISTRY
| Limits | C | Mn | P
(max.) | S
(max.) | Si | Ni
(resid.) | Cr | Mo
(resid.) | Cu
(resid.) | Al |
| Upper Limit | 1.00 | 1.00 | 0.025 | 0.025 | 0.30 | 0.10 | 0.50 | 0.01 | 0.15 | 0.05 |
| Lower Limit | 0.80 | 0.80 | - | - | 0.20 | - | 0.40 | - | - | 0.02 |
HARDNESS (HRC)
| Series | Surface
(min. - max.) | Volumetric
(min. - max.) | Center
(min.) | Applications |
| ME Ultra Grind® | 60 | 64 | 60 | 64 | 60 | Ball mills |
HRC: Hardness Rockwell
