SURFACE LOADING
Pierre Mailland-Rosset said:“ This delivery represents much more than just a simple commissioning – it is the culmination of an industrial project carried out hand in hand with our customer and the Hitachi teams. The arrival of the first EX2000-7 of this type in Europe illustrates the mutual trust that unites us and Teramat’ s ability to support its partners on large-scale projects.”
Satoshi Konno added:“ I am particularly impressed by the quality of the relationship between Teramat and its customer, as well as the professionalism shown by the teams throughout the project. This commissioning is just the beginning – we will continue to support Teramat to ensure the availability and performance of this machine.”
Liebherr’ s R 9100 G8 now available
The newest machine in Liebherr’ s mining excavator portfolio, the R 9100 G8, can now be purchased, the OEM has announced. This latest 100 t excavator from Liebherr has delivered promising results during its pre-series field validation and is set to take over from the OEM’ s previous generation of 100 t excavators, the R 9100 G6, once the Generation 8 model enters series production in the June quarter for backhoe configuration and the September quarter for face shovel configuration.
Fuel consumption can account for up to 40 % of operating costs for a 100 t excavator. To help customers keep fuel costs as low as possible, the R 9100 G8 comes with Liebherr Power Efficiency( LPE), Liebherr’ s proprietary engine and hydraulic management system designed to reduce fuel consumption while maintaining productivity.
Compared with the R 9100 G6, the new excavator consumes 20 % less fuel and delivers 30 % higher fuel efficiency, enabling fuel savings of up to 100,000 litres per year, the company claims. The R 9100 G8 retains key elements of its predecessor, including the proven D9512 engine in fuelcombustion-optimised configuration; the same bucket capacities; and a pressurised, FOPS-certified operator cab. Standard heavy-duty bucket sizes range from 7.0-7.5 cu. m in backhoe configuration and 7.3 cu. m in face shovel configuration( at 1.8 t / cu. m), ensuring effective pass matching for trucks with payload capacities from 45 to 100 t.
At the same time, the excavator benefits from several Generation 8 upgrades, such as a fully redesigned electro-hydraulic control system for smoother and more precise operation; an optimised attachment and hydraulic circuit to reduce pressure losses and improve cycle times; integrated IMUs for cylinder dampening, enhancing component protection and reliability; a redesigned undercarriage with lifetimesealed travel drives as standard; and grease change intervals extended to a minimum of 250 operating hours, helping to reduce downtime.
Like all Generation 8 excavators, the R 9100 G8 is compatible with a range of products within the IoMine technology suite, such as Assistance Systems, Skyview 360 ° vision system, Bucket Filling Assistant, Data View and Data Services. These products, along with the rest of IoMine’ s offering, support mine operators’ transition to integrated, safer, more efficient and more sustainable operations, the company claims. Data View and Data Services make it possible to intelligently connect equipment and retrieve machine, operations and assistance systems data on customers’ infrastructure to transform field information into high value-added operational decisions.
Both the backhoe and face shovel configurations of the R 9100 G8 are available for purchase now. Backhoe configuration will enter series production in the June quarter of this year, with series production of face shovel configuration following shortly after in the September quarter. Pre-series field validation of the US Tier 4 / EU Stage V version is scheduled to begin in 2027.
The new R 9100 G8 has already seriously surpassed expectations during its pre-series field validation. As part of the validation process, PT Madhani Talatah Nusantara( Madhani) – a mining contractor based in Jakarta, Indonesia – agreed to add a preseries unit of the new 100-tonne machine to its fleet at Tanjung Enim mine in the South Sumatra region of Indonesia. Between September 2024 and December 2025, the R 9100 G8 not only exceeded Madhani’ s performance requirements, but it also set new performance standards, delivering exceptional productivity, reliability and energy efficiency.
Madhani manages overburden removal and coal extraction at Tanjung Enim mine. The coal from the mine powers the MT Sumsel-8 power plant( 2 × 660 MW), which requires up to 5.4 million tonnes annually to supply electricity to the Sumatran grid.
Madhani’ s partnership with Liebherr Mining began in 1996 with an R 994 excavator. Today, Madhani operates 29 Liebherr excavators across Indonesia, including R 9100, R 9150, R 9200 and R 9250 models. Tanjung Enim alone has seven Liebherr excavators in its fleet: one R 9100 G8, four R 9100 G6s and two R 9150 G6s.
“ Pre-series field validation involves 12 months of onsite testing, overseen by a representative from our Colmar excavator factory. Because Indonesian soil conditions can’ t support large mining equipment, the country is a key market for 100 tonne excavators. There is nothing better than going to Indonesia,” said Michel Runser, Head of Product Management for excavators, Liebherr Mining, France.
“ We had three KPIs for Liebherr during the field validation. First productivity, then fuel consumption and then durability. With Liebherr, all three of those are very good,” said Hardjunadi, Mine Manager, Tanjung Enim mine, Madhani, Indonesia. Throughout the pre-series validation, which took place from September 2024 to December 2025, Madhani reported an average production of 448 bcm per hour.
Liebherr D9812 repowers for the R 9800 at MTW
Moving up the size classes to the top end, in late 2024, Liebherr-Australia and Yancoal completed the first-ever repower of R 9800 excavators. Since then, the two repowered 800 t machines have been achieving some impressive results, thanks to their new D9812 engines. This project highlights just how much of a difference repowering can make to customers’ existing fleet.
Repowers are just one of the many support services offered by Liebherr Mining Service. It is the process of replacing the existing diesel engine modules of Liebherr machines with either an electric drive system or with one of Liebherr’ s D98 internal combustion engines, which are designed specifically to thrive in the harsh conditions found on mine sites. For Yancoal, upgrading these R 9800s to D9812 engines – the V12 model in the D98 range – was the right decision for the work these machines would be doing at the Mount Thorley Warkworth( MTW) coal mining operation in New South Wales( Australia).
“ Our aim is to be the highest producing and lowest cost operation, and in collaboration with our long-standing relationship and trust in Liebherr, this repower offered us the chance to continue to improve our productivity and lower operation costs, whilst reducing environmental emissions,” says Cris Shadbolt, General Manager at Yancoal’ s MTW site.
Because this was the very first repower of R 9800s in the world, the Liebherr-Australia Pty Ltd technicians taking part in the project needed specialised training in order to successfully complete the engine exchange. After receiving foundational training at Liebherr-Australia’ s training facility in Adelaide, the Australian technicians travelled to Switzerland to build on their knowledge with the technical team at Liebherr Machines Bulle SA – one of the production facilities within the Group that manufactures diesel and gas engines. In Switzerland, the Australian technicians learned to perform advanced machine diagnostics and infield mechanical repairs.
Since 2020, all of Liebherr’ s technical training for its range of combustion engines has taken place at the Training Academy
26 International Mining | MAY 2026