AG — Quarry Aggregate Plant
A 250 t/h quarry line producing three EN 12620 products, with the screen cut points fixed before the cone is sized.
Quarry
AG is the aggregate plant: three products to EN 12620, 250 t/h, in a layout that fits a quarry bench rather than a greenfield site.
The screen is the plant here. Cut points are fixed from the product list first, and the cone is then sized around the circulating load those cut points actually produce — the other way round is how a line ends up 15% short on the 4/20 mm bin.
Fourteen weeks for the first set, nine for a repeat structure.
Process, step by step
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Receiving and scalping
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Primary crushing
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Secondary crushing in closed circuit
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Three-deck screening to cut points
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Product and oversize conveying
Who supplies what
| Item | Responsible |
|---|---|
| Mass balance, product cut-point design and steelwork drawings | Ridgecast supplies |
| Foundations and site drainage | On the mine |
| Machines, screen media and steelwork supply | Ridgecast supplies |
| Stockpile walls and load-out bays | On the mine |
| Erection supervision, first-ore commissioning and product sampling | Ridgecast supplies |
