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In industries such as stone crushing, mining, cement, and aggregate production, materials are often highly abrasive. Stones like quartz, basalt, granite, and sandstone, as well as certain ores, generate constant friction, impact, and wear, which significantly reduce the lifespan of machine components.

In such harsh environments, the choice of blow bars (pallets) is critical for efficiency, cost-effectiveness, and operational safety. Chromium casting blow bars are specifically designed to withstand abrasive materials and therefore provide the best solution.

2. Properties of Chromium Casting

  • High chromium content (12–30%): Increases hardness.

  • Superior wear resistance: Outstanding durability against abrasive wear.

  • Hardness level: Typically between HRC 50–60.

  • Extended lifespan: Long-lasting even under continuous abrasive conditions.

3. Why Use Chromium Casting in Abrasive Materials?

  1. High Hardness and Durability
    Chromium casting blow bars are designed to endure continuous friction caused by hard minerals. While manganese steel is excellent for impact resistance, it wears out much faster when exposed to abrasive stones.

  2. Longer Service Life
    In abrasive environments, chromium lasts much longer than manganese. This means longer maintenance intervals and reduced costs.

  3. Production Efficiency
    Longer-lasting components allow machines to operate continuously with fewer breakdowns. Downtime due to part replacement is minimized.

  4. Economic Advantage
    Although initial investment may be higher than manganese, chromium casting reduces total costs in the long run by minimizing part replacements and productivity losses.

4. Applications

  • Crushing of abrasive stones such as quartz, basalt, and granite

  • Cement plants and aggregate production facilities

  • Sand quarries

  • Processing of abrasive ores in mining

5. Conclusion

When dealing with abrasive materials, chromium casting blow bars are the most logical and cost-efficient choice, thanks to their hardness, durability, and long service life.