Since the start of the year at Liebherr-France SAS in Colmar (France), production of the latest generation of earthmoving crawler excavators has been underway: The “Generation 8”.
This new stage is predominantly characterised by an even greater power, even higher productivity and even more comfort for the operator. The new R 934 model (based on the platform of the R 934 and R 938 models) was presented at Liebherr’s trade fair stand alongside an engine that meets Stage V emission standards. Like all models in the new generation, the Liebherr crawler excavator, launched in 2019, also boasts numerous improvements.
The “Generation 8” stands out with a new design, which was presented back in October, alongside the other models in the series (R 922 and R 924). The team of developers from Colmar completely revised the basic concept to further increase comfort, safety, and performance, and to achieve even better ergonomics in operation.
A Specific Platform
The R 934 presented at the bauma 2019 trade fair complies with Stage V emission standards and, together with the R 938, is based on a specific platform developed by Liebherr-France SAS. The R 934 and the R 938 have an operating weight of 35 tonne and 38 tonne, and achieve a power of 200kW/272hp and 220kW/299hp. The backhoe bucket capacities vary from 1m3 to 2.5 m3 on the R 934 and between 1m3 and 3m3 on the R 938. The R 934 and R 938 models are available with the relevant engines in countries where emission standards regulation is extremely stringent or less stringent, or in countries where such regulation does not exist at all.
In combination with the engine that meets Stage V emission standards, the R 934 is positioned between the R 936 (launched in 2015) and the new R 938. The R 938, in turn, replaces the R 946. With regard to the engines that meet Stage IIIA emission standards and the engines for unregulated markets, the new position of the R 934 is now between the R 934 C and the R 938. The R 938 succeeds the R 944 C. An extremely wide range of equipment and tools makes the R 934 and R 938 crawler excavators very versatile for earthmoving, leveling, digging, loading and even lifting tasks.
Higher Power With Lower Consumption
The digging forces and tractive forces of the undercarriage and the swing torque of the upper carriage have been significantly increased compared to the previous generation. Thanks to these improvements, the R 934 and R 938 crawler excavators achieve a much higher level of performance on construction sites.
At the same time as launching this new generation, the construction equipment manufacturer also developed a new equipment concept. The load curve and inertia of the swiveling drive have been optimised to reduce fuel consumption.
The R 934 and R 938 models are also available with various, particularly robust x-shaped undercarriage types, including a new WLC undercarriage, which guarantees the high stability required for especially heavy-duty use. The crawler chassis is completely maintenance-free and the track rollers feature permanent lubrication. Lastly, the automatic central lubrication system makes it possible to maximise both component service life and productivity.
Greatest Possible Comfort And Maximum Safety
A particularly spacious, temperature-controlled cab is available to the operator. To make work particularly convenient, the excavators feature pneumatic seats with vertical and longitudinal suspension and a high-resolution, extremely user-friendly 7” touchscreen. The windscreen can be fully lowered.
LED technology has completely replaced the halogen headlights, increasing the operating life and reducing electricity consumption – and all this with improved lighting. The range of lighting is available in the form of separate packages, with the LED+ lighting package, which is available as an option, representing the most high-performance solution.
The completely unobstructed panoramic visibility and the monitoring cameras at the rear and sides ensure maximum safety in the driver’s work environment. The folding console makes entering and exiting the cab easy and safe. The certified ROPS cab structure provides particularly effective protection in the event that the crawler excavator tips over. The rear window serves as an emergency exit on all configuration versions of the excavator. The windscreen and right-hand window are made of tinted laminated glass.
Simplified And Even Safer Mainte-Nance Work
Access to the upper carriage and platform has been extended and redesigned for even greater safety when performing maintenance work. The R 934 and R 938 crawler excavators boast a new maintenance concept with maintenance points that can be accessed from the ground. The engine oil, hydraulic oil, fuel, and urea levels are also shown on the display.