en.Wedoany.com Reported - Liebherr has officially launched the eighth-generation 100-ton class mining excavator R 9100 G8 globally, further expanding its G8 series product lineup. Before its official market release, the model underwent a full year of field operation verification.
The verification work was jointly carried out by Liebherr Mining and Indonesia's PT Madhani Talatah Nusantara. Starting in September 2024, a brand-new R 9100 G8 was put into testing at the Tanjung Enim mine site in Indonesia.
During the test period from September 2024 to December 2025, the equipment operated an average of 411 hours per month, achieving an availability rate of 95%, significantly exceeding customer expectations. An instantaneous production measurement in September 2025 showed an actual capacity of 771.2 cubic meters per hour (equivalent to approximately 1,589 tons).
Fuel costs can account for up to 40% of the operating expenses for a 100-ton class excavator. To control this expenditure, the R 9100 G8 is equipped with the Liebherr Power Efficiency System, a proprietary engine and hydraulic management system that reduces fuel consumption while maintaining production levels. Compared to the previous generation R 9100 G6, the new model reduces fuel consumption by 20% and improves fuel efficiency by 30%, potentially saving up to 100,000 liters of fuel annually.
The R 9100 G8 continues the proven configuration of its predecessor, including the D9512 engine with an optimized fuel combustion solution and an FOPS-certified pressurized cab. The standard 7.5 cubic meter bucket effectively matches mining trucks with payloads ranging from 45 to 100 tons.
The equipment is also compatible with Liebherr's IoMine suite of advanced technologies, such as various assistance systems, Skyview 360° surround-view imaging, bucket filling guidance, data visualization, and data services. The combination of the new generation excavator and IoMine products helps drive mining operations towards greater integration, safety, efficiency, and sustainability, supporting operators in making higher value-added decisions.
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