Figure 10 - Plant in operation after commissioning 8. CONCLUSION The implementation of modular stations on skid-mounted units reduced the execution schedule (fabrication, modularization and assembly on site) by 28% from 254 to 183 days, completing the cycle from conception to delivery in ten months. The standardization and precision in interface engineering allowed for distributed manufacturing and on-site assembly without dimensional corrections. Operationally, the reduction in grain size from 430 mm to 150 mm eliminated belt tear failures on the conveyor and increased plant availability by optimizing the secondary crushing system. These results validate modularity as an efficient technical and economic solution for the challenges of speed and reliability in global mining. ACKNOWLEDGEMENTS The authors express their gratitude to the S11D Project team for providing the operational data and facilities for this study. We also thank the technical staff for their support during the modular plant implementation and data collection phases. REFERENCES Leme, L. F. P., da Silva, D. N., & Machado, R. L. (2024). Compact modular secondary crushing stations supported on skid bases: A case study at the S11D iron ore project. Technical report, Brazil. Utley, R. W. (2011). In-pit crushing (Chapter 10.5, pp. 941–956). En SME Mining Engineering Handbook. Society for Mining, Metallurgy, and Exploration. Metso. (2023). Crushing and screening handbook (7th ed.). Metso.
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