Sandvik Launches Toro TH663i Gen2 Underground Mining Truck

Sandvik has introduced the Toro TH663i Gen2 underground truck, delivering over 30 engineering updates to its 63-metric-ton haulage platform.  www.home.sandvik Sandvik is introducing the Toro TH663i Gen2 underground mining truck, marking the latest iteration of its 63-metric-ton haulage platform developed for underground hard-rock applications. The vehicle incorporates more than 30 targeted updates spanning the powertrain, engine, electrical systems, software architecture, and structural components to enhance machine availability and manage total lifecycle costs. Operational Reliability and Fleet Maintenance Metrics Continuous improvements applied to the platform leverage operating experience from underground operations worldwide. Operational reference data indicates a 25% decrease in mean time to repair (MTTR) alongside a 12% rise in mean time between failures (MTBF) compared to previous TH663i versions. These reliability gains translate to more than 170 additional annual operating hours per truck in underground service. The platform refinements focus on serviceability and durability to control cost-per-ton metrics across extended duty cycles. "Customers are looking for predictable performance they can rely on every shift," stated Esa-Pekka Kantola, Product Line Manager, Load and Haul at Sandvik Mining. "With Toro TH663i Gen2, we have used years of underground operating experience to refine a proven platform and help customers improve productivity, increase availability and control their cost per ton." Digital Automation and Showcase Demonstration The Toro TH663i Gen2 platform interfaces with digital fleet tools, including My Sandvik Digital Services and AutoMine automation and telematics solutions, backed by global aftermarket parts and technical training infrastructure. Sandvik showcased the Toro TH663i Gen2 during its customer day in Turku, Finland, as part of Future of Mining 2026, presenting the machine in the static exhibition area alongside active field demonstrations. Additional Context This section details technical specifications not included in the original news release. Articulated underground haulage trucks in the 60-tonne class operate within restricted tunnel cross-sections, with external dimensions typically measuring approximately 11.6 meters in length, 3.5 meters in width, and 3.5 meters in height. Powertrain installations for this envelope commonly integrate heavy-duty, 16-liter six-cylinder turbo-diesel engines delivering power outputs around 565 kW to 585 kW, engineered to comply with Stage V or Tier 4 Final non-road emission limits via diesel particulate filters (DPF) and selective catalytic reduction (SCR). Drivetrain configurations utilize multi-speed powershift transmissions with integrated lock-up torque converters and hydraulic retarders, providing fully loaded tramming speeds exceeding 30 km/h and high tractive force on spiral decline ramp gradients up to 20 percent (1:5). In addition, integrated axle braking relies on fully enclosed, oil-immersed multiple-disc liquid-cooled braking systems (SAHR - Spring Applied Hydraulic Release) to ensure fail-safe deceleration in wet and abrasive underground haulage corridors. Edited by Romila DSilva, Induportals Editor, with AI assistance. www.mining.sandvik Powered by Induportals Media Publishing