UG — Underground Transfer Plant
A 180 t/h transfer station designed to the roadway cross-section, inside 4.2 m of clear height.
Underground
UG exists because a decline is not a quarry. Everything has to fit inside the roadway cross-section with 4.2 m of clear height, and it has to be assembled underground by the mine’s own crew on a shift schedule.
That constraint drives every part choice. The RC-J1200 frame is a bolted fabrication rather than a casting, so it ships in sections that pass the decline, and the assembly sequence is written before the first bolt is made — not improvised at the station.
180 t/h. Lower than the open-pit line on purpose: underground, the limit is the skip and the ventilation, not the crusher.
Process, step by step
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Receiving from the decline haul
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Primary crushing to skip size
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Transfer to the skip loading point
Who supplies what
| Item | Responsible |
|---|---|
| Mass balance, fits-to-roadway drawings and assembly sequence | Ridgecast supplies |
| Chamber excavation, lining and sump | On the mine |
| Machines and bolted steelwork supply | Ridgecast supplies |
| Hoisting and underground transport to the station | On the mine |
| Assembly supervision and first-ore commissioning | Ridgecast supplies |
