HOME | CASE | 350 TPH Phosphate Ore Crushing and Screening Project in Indonesia

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This phosphate ore processing project is designed for a capacity of 350 tons per hour, producing two final product size fractions: 8-10 mm and 10-40 mm, with the latter being the primary output. Since commissioning, the crushing and screening process has consistently yielded a phosphate concentrate with a grade exceeding 20%, and the production ratios for both size fractions have largely met design expectations.
Run-of-mine ore is pre-screened by a vibrating feeder; fine material proceeds directly to the vibrating screen, while coarse material enters a C6X jaw crusher for primary crushing. The primary crushed product is combined with the pre-screened fines and fed into the vibrating screen. Oversize material is directed to an HST single-cylinder hydraulic cone crusher for secondary/tertiary crushing before being returned to the S5X screen, establishing a closed-circuit process. Material passing through the screen is separated into the final product fractions (8-10 mm and 10-40 mm) based on the screen aperture sizes. The core of this process design lies in early screening and minimizing unnecessary crushing, thereby maintaining a stable closed circuit and reducing over-crushing (excessive fines generation).
Since the project began operations, the production line has run continuously and smoothly, confirming its 350 tph design capacity. The proportion of the primary 10-40 mm product has remained stable, and the concentrate grade has consistently stayed above 20%. On-site management noted that the equipment is well-matched, with seamless integration across the feeding, primary crushing, screening, and secondary/tertiary crushing stages. The screening efficiency and the selection of crushing chamber configurations are well-suited to the specific particle size characteristics of the phosphate ore. Furthermore, the layout of wear parts and maintenance access points facilitates routine inspections, ensuring a predictable operational and maintenance schedule for long-term, continuous processing.