Anyone who types "R998" into a search engine usually means the real machine: a crawler excavator that weighs about one hundred tons and works in quarries or open-pit mines. This article puts the prototype into context and shows what ends up on the display shelf in 1:50 scale.
The prototype: Liebherr R 998 SME Litronic
The R 998 SME Litronic is Liebherr's largest crawler excavator below the dedicated mining series. It operates where material is moved in large quantities: quarries, open-pit mines, and large-scale earthmoving projects. The machine belongs to Generation 6 and is part of a facelift that Liebherr has carried out for the R 972, R 978 SME, R 992, and R 998 SME series.
Technical specifications
| Operating weight | 97,700 – 101,500 kg |
| Engine output (ISO 9249) | 420 kW / 571 hp |
| Engine output (SAE J1349) | 420 kW / 563 hp |
| Emission standard | V |
| Backhoe bucket capacity | 5.20 – 7.20 m³ |
| Clamshell bucket capacity | 5.10 – 6.50 m³ |
| Average consumption | 58.26 l/h |
| Generation | 6 |
Source: Manufacturer data Liebherr, as of August 2026.
What the numbers mean
An operating weight of around one hundred tons means that this machine does not travel to the construction site on its own axle. It is dismantled and transported on several low-loaders—with the uppercarriage, undercarriage, boom, and ballast separated. Anyone building a 1:50 scale construction site scene immediately has the next motif: the heavy-duty transport that delivers the machine.
A backhoe bucket with up to 7.2 m³ holds a good twelve tons of rock per scoop. For comparison: a standard three-way tipper is full after two loads.
Also as an electric version
Liebherr also offers the machine as the R 998 SME E—electrically powered, together with the R 992 E as the successor to the ER 974 B. This is interesting for collectors because large electric equipment models are still the exception.
The model: WSI 1:50, article number 64-2011
WSI Models produces the R 998 SME Litronic in the collector's scale of 1:50. The main body is made of die-cast zinc, while plastic is used where necessary—windows, hoses, and lines.
For a machine of this size, the scale results in a correspondingly massive model. The rule of thumb: what measures ten meters in reality becomes twenty centimeters in the model. A machine with a width of about 5.3 meters therefore needs a good ten centimeters of shelf space in width alone.
WSI is the brand against which detail accuracy is measured in this class—clean tampo printing, correct lettering, and functional mobility. More on this in the WSI Models in 1:50 scale category.
Frequently asked questions
How heavy is the Liebherr R 998 SME Litronic?
The operating weight is between 97,700 and 101,500 kilograms, depending on the equipment.
How much power does the R 998 SME have?
420 kW or 571 hp according to ISO 9249 (563 hp according to SAE J1349).
How big is the bucket?
The backhoe bucket holds 5.20 to 7.20 m³, and the clamshell bucket 5.10 to 6.50 m³.
In what scale is the R 998 SME available as a model?
As a collector's model by WSI Models in 1:50 scale under article number 64-2011.
What does the abbreviation "SME" stand for?
Liebherr uses this designation for the variant without defining it in public product specifications. The same identifier is also carried by the smaller R 978 SME in the same series.
Matches
You can find more crawler excavators and large equipment in the 1:50 excavator models and in the overview of construction machinery models. If you want to bring the machine to the construction site, you will find what you need in the low-loaders section—and with the right accessories, it becomes a complete scene.
All mentioned company, brand, and trademarks belong to their respective owners and are used solely for description and clear identification. Technical data on the prototype according to manufacturer specifications; no guarantee.
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