Broken Hill Rasp mine ore sources: production and planning notes for engineers
Reviewed by Joe Ashwell

First reported on Australian Mining
30 Second Briefing
Broken Hill Mines has lifted silver, lead and zinc output at the Rasp mine as ore from the high‑grade Main Lode deposit starts feeding the plant, supporting a push towards 750,000 tonnes per annum capacity from multiple new ore sources. June quarter results show improved production and financial metrics, with the diversified feed expected to stabilise mill throughput and extend mine life beyond the existing Western Mineralisation and Centenary resources. Geotechnical and planning teams will need to manage sequencing and ground conditions across several lodes while maintaining consistent ore quality to the concentrator.
Technical Brief
- Ore from the high-grade Main Lode deposit is now physically feeding the Rasp processing plant.
- Multiple new ore sources are being integrated into the existing underground mine layout at Broken Hill.
- Production uplift spans all three commodities mined at Rasp: silver, lead and zinc.
- June quarter performance data show concurrent improvement in both metallurgical output and financial metrics.
- Diversified ore feed demands tighter control of blend ratios to maintain concentrator performance and recoveries.
- Additional ore sources will necessitate revised ventilation, haulage and backfill scheduling underground.
- Similar multi-lode brownfield expansions often trigger updates to ground control management plans and seismic monitoring coverage.
Our Take
Broken Hill Mines’ work at the Rasp Mine sits alongside its newer exploration push noted in April 2026, where it was also progressing gold and base metal targets, suggesting the company is trying to balance mature silver‑lead‑zinc production at Broken Hill with a broader pipeline of polymetallic prospects.
Within our 1276 Mining stories, silver‑lead pieces like this are relatively concentrated around a few long‑life districts such as Broken Hill and Hermosa, signalling that established polymetallic camps remain central to supply even as greenfield critical‑minerals projects gain attention.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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