| High Durability: grinding balls |
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 Grinding balls are cast based on our experienced technology based on Europe, |
| Every single grinding ball is densely fed by a special system to assure that no interior defect occur, while at the same time a high breakage resistance is provided. The main characteristic of the grinding balls is the horizontal feeding system allowing that the balls with a diameter bigger than 60 mm have only one ingate, |
| The chemical composition of the grinding balls-quality is chosen based on the individual application and working conditions, |
| Crucial for the guaranteed high wear and breakage resistance of the grinding balls is a quality control system especially adapted to this kind of product. All factors having influence on the characteristics of the grinding balls are registered and analyzed during the manufacture in the foundry. |
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Material selection of -grinding balls |
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Grinding balls of smaller size are manufactured with a higher carbon content than the bigger ball sizes, , |
| Due to the higher impact load, bigger ball sizes are more breakage resistant, |
| The high chromium contents of either 16 - 17 % or 11 - 12 % assure minimum wear rates, |
| The manganese content is reduced to a minimum by means of a special hardening process by air quenching, |
| The melting and heat treatment are fine tuned to each other to ensure a optimal structure of each grinding ball, |
| The residual austenite content is reduced to a minimum by the multiple heat treatment process, |
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