R 9100 G8 delivers 30% better fuel efficiency over G6

Liebherr Mining has launched the R 9100 Generation 8 (G8), a 100-tonne class excavator now available to buy in both backhoe and face shovel configurations. The company said series production will begin in the second quarter of 2026 for the backhoe and follow in the third quarter of 2026 for the face shovel.

A pre-series R 9100 G8 tested at PT Madhani Talatah Nusantara’s Tanjung Enim mine in South Sumatra from September 2024 to December 2025 averaged 411 operating hours per month and reached 92% availability, exceeding site expectations. During an instantaneous production study in September 2025, the machine achieved a production rate of 771.2 bcm (1,589 tonnes) per hour with fuel consumption of 85.7 litres per hour, equivalent to 9 bcm per litre.

Liebherr said the R 9100 G8 consumes 20% less fuel than the R 9100 Generation 6 (G6) and delivers 30% higher fuel efficiency through its Liebherr power efficiency engine and hydraulic management system. The company estimates operators could save up to 100,000 litres of fuel per year compared with the prior generation.

The G8 retains proven elements like the D9512 engine in a fuel-combustion-optimised configuration, the same bucket capacities, and a pressurised FOPS-certified cab. Generation 8 upgrades include a redesigned electro-hydraulic control system for smoother operation, an optimised attachment and hydraulic circuit to reduce pressure losses and improve cycle times, integrated IMUs for cylinder dampening, a redesigned undercarriage with lifetime-sealed travel drives, and extended grease-change intervals to a minimum of 250 operating hours.

Liebherr also equipped the R 9100 G8 for digital integration. The excavator supports the IoMine suite—Assistance Systems, Skyview 360° vision, Bucket Filling Assistant, Data View and Data Services—enabling operators to connect equipment, capture machine and operations data, and convert field information into actionable decisions.

The company said pre-series field validation of the Tier 4 / Stage V version is scheduled to start in 2027. Liebherr Mining, part of the Liebherr Group, has designed and supported mining equipment for over 50 years and continues to develop lower- and zero-emission options to support customers’ decarbonization efforts.

More information is posted at www.Liebherr.com