Sandvik fleet for Northern Star: high-capacity gold haulage insights for engineers
Reviewed by Tom Sullivan
First reported on International Mining – News
30 Second Briefing
Northern Star Resources has ordered 25 units of Sandvik underground equipment for its Western Australian gold operations, including 14 Toro LH621i loaders, 10 Toro TH663i trucks and a Sandvik DD422i development jumbo, in a deal booked in the September quarter of 2026. The LH621i is typically used for 21-tonne class loading and the TH663i for 63-tonne class haulage, signalling a high-capacity fleet profile for deep-level stoping and high-volume tramming. Deliveries, expected to begin shortly, will influence fleet standardisation, maintenance planning and automation-readiness across Northern Star’s mines.
Technical Brief
- Concentrated deployment in Western Australia simplifies parts logistics and regional service support from Sandvik.
- Common Toro i-series platform enables shared diagnostics, software updates and operator training across loaders and trucks.
- Sandvik DD422i selection standardises development drilling around an automated, data-logging jumbo platform.
- Fleet composition favours high-productivity longhole stoping operations with large cross-sections and long tramming distances.
- Digital-ready machines support integration with mine control, telemetry and potential future autonomous haulage and loading.
- Maintenance planning can be centralised around condition monitoring and planned component change-outs across identical units.
Our Take
The 25-unit Sandvik underground fleet order in Western Australia lands just as Northern Star is commissioning the expanded KCGM processing plant, signalling that underground ore delivery capacity is being scaled to match the new mill throughput rather than relying solely on open-pit feed.
In our database of gold stories, Northern Star Resources appears frequently alongside corporate activity such as Gold Fields’ rejected A$38.7 billion approach, so this capex-heavy equipment commitment in 2026 suggests the company is positioning itself as a long-term standalone producer rather than preparing for near-term consolidation.
The timing of this underground equipment order, following recent infrastructure upgrades at the KCGM Mill Expansion Project by ADENCO, indicates that Northern Star is locking in both surface and underground bottleneck relief, which should reduce schedule risk for its Western Australian gold operations into the late 2020s.
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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