by Nick Drew | Wed 31 Aug 2016
Liebherr set to deliver new wheeled loader models
At Bauma 2016, Liebherr presented the new generation of mid-size wheel loaders that fulfil the emissions guidelines of emission stage IV/ Tier 4f. By the end of this September, Liebherr starts to deliver the first machines to customers.
With the L 526, L 538 and L 546 wheel loaders, the new range comprises three models that remain true to the reputation of this machine class as powerful and reliable all-rounders. In order to further increase the robustness and durability of these wheel loaders, Liebherr has installed larger axles and reinforced the steel structures. The designers have holistically reworked the interior of the cab to provide higher standards of comfort.
Liebherr has developed the new L 526, L 538 and L 546 models in view of the current requirements of the market. The proven and efficient hydrostatic driveline also impresses with fuel savings of up to 25 per cent in comparison with wheel loaders of the same size class. Liebherr offers numerous application-specific solutions to increase versatility. With these models, customers can choose between Z-bar linkage for standard applications and parallel lift arms for industrial applications. The new all-round wheel loaders are thus particularly efficient and versatile to use.
Larger axles and robust steel structures increase reliability
The new all-round wheel loaders fulfil the requirements of companies from the widest variety of sectors. For example, an important field of application is the recycling industry, where operators place particularly high demands on the machines. Multiple-shift operation with up to 6,000 operating hours per year and working with solid rubber tyres or foam filled tyres are typical of wheel loader operations in this sector. Reliability is of the utmost importance as wheel loaders in recycling operations frequently play key roles in the production process.
Liebherr has prepared the new all-round wheel loaders for these stringent requirements with targeted investment in robustness. In order to increase the stability of the machines, Liebherr has installed larger axles than in the previous generation in all three models. These have automatic self-locking differentials that provide the greatest degree of traction even on rough terrain.
The new generation of all-round wheel loaders embodies the decades-long experience of Liebherr in the development, design and production of steel components. Comprehensive optimisation of the entire steel structure improves the durability of the machines, for example in demanding industrial applications. In particular, the developers have reinforced the structure of the steel frame and the two lift arm variants. High-quality hydraulic components round off the package for increasing durability.
No compromises with safety and comfort
A wide ladder leads to a roomy, modern comfort cab that is ergonomically adjusted to suit the machine operator. As desired the comfort safety door is available. It can be opened comfortably by 180 degrees.
The designers have holistically reworked the interior of the cab to provide higher standards of comfort. The cab is logically structured and provides a spacious feeling. Storage and stowage facilities appear tidy and are well-conceived down to the smallest detail. Displays, control elements and operator’s seat form an ergonomic unit. The control instruments are laid out in a clear manner so the machine operator can view all operation-related machine data at a glance. In addition they can adjust the height of the touch-screen display to each individuals preference on the A pillar.
The new electrohydraulic system allows the operator to programme the lift arm and bucket positions from the cab as desired. An optionally-available, powerful air conditioning system always ensures a pleasant working temperature.
The design of the cab offers the machine operator good visibility to all sides. The large glass and window surfaces are extended a long way downwards, improving all-round visibility. Together with the standard reversing camera, these measures ensure the safety of both man and machine.
With respect to maintenance, the focus is also on safety and comfort. The service personnel only have to open a cover to gain access to the engine bay. Maintenance work can be conducted safety from the ground. The well-considered installation location of the components guarantees that all maintenance points are safely, easily and rapidly accessible. Operators thus save time with maintenance.
Independent of the utilisation profile: more efficient driveline ensures productivity
Efficient diesel engines of emission stage IV/ Tier 4f power the new wheel loaders in the mid-size range. Engine output is tuned to the requirements of the powerful hydrostatic drive. Here, the proven Liebherr Power Efficiency plays a decisive role. The system controls the engine in such a way that it delivers the greatest possible amount of power even at low engine speeds. The result is a higher degree of effectiveness and fuel savings of up to 25 per cent in comparison with wheel loaders of the same size class.
[youtube width="725" height="344"]http://www.youtube.com/watch?v=BCLA_LqAqvs[/youtube]
The hydrostatic driveline allows rapid and continuous acceleration in all speed ranges, without discernible gear-changing processes and without interruption in tractive force. In addition, it autonomously applies the brakes so that the service brake only has to provide supportive assistance and thus remains almost free of wear. Continuous traction control, combined with automatic self-locking differentials, prevents wheelspin. This means that tyre wear is reduced by up to 25 per cent and operating costs are decreased.
The proven exhaust gas after-treatment system comprises a diesel oxidation catalyst (DOC), diesel particle filter (DPF) and selective catalytic reduction (SCR). The system is state of the art in this machine class. It effectively reduces the emission of pollutants.
[youtube width="725" height="344"]http://www.youtube.com/watch?v=bLZIxYEZkzE[/youtube]
The fact that companies can work productively with Liebherr wheel loaders in the mid-size range is also due to the unique component installation location. Liebherr installs heavy components such as the diesel engine in the rear. The centre of gravity shifts to the rear of the machines. The wheel loaders thus require less additional counterweight and attain higher tipping loads with low operating weight. This means that operators can use larger buckets in everyday operations and hence optimise handling capacity and productivity.