Crawler excavator |
R 946 |
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Operating Weight: 38,400 – 41,950 kg |
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Engine Output: |
200 kW / 272 PS |
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Bucket Capacity: |
1.25 – 2.50 m³ |
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R 946 
Operating Weight: 38,400 – 41,950 kg
Engine Output: |
200 kW / 272 PS |
Bucket Capacity: |
1.25 – 2.50 m³ |
2 R 946 Litronic
Performance
Thanks to its innovative Advanced excavator system technology, the R 946 crawler excavator has performance features that are truly unique. Characteristic elements of this system technology include the particularly effective and energy-efficient Positive Control twincircuit hydraulic system, which was specifically designed for machines with a high level of superimposed functions and operational movements. The electronic pump control arrangement sets this technology apart, creating a new standard for performance and quantity control that entirely matches the operator’s needs.
Reliability
Liebherr provides customers with solutions that lead the way for the future, solutions for maximum equipment reliability and availability, solutions which satisfy the most extreme demands for performance and quality. With more than 50 years experience in the construction of hydraulic excavators, we have an advantage in design and consultation that clearly sets us apart.
Comfort
In the cab the driver can look forward to a workplace designed in accordance with the very latest findings in ergonomic science, with emphasis on comfort and ease of operation. The optimised arrangement of the hydraulic hoses means that the driver has en even wider field of vision, and the heating and climate control system fitted as standard means pleasant working conditions inside, whatever the weather. Liebherr crawler excavators are also particularly easy to service – maintenance tasks can be carried out easily and rapidly at readily accessible service points.
Economy
Crawler excavators from Liebherr guarantee maximum productivity. The optimum interplay of hydraulics and electronics means that individual movements and superimposed movements alike can be carried out particularly efficiently. And, perhaps last but by no means least, the perfect harmonisation of all the components means that energy expenditure during operation can be kept to an absolute minimum.
R 946 Litronic 3
Modular quick-change system made by Liebherr
•Likufix – connects all hydraulically mounted tools without having to leave the operator’s cab, maximum productivity due to tool change being performed in a matter of seconds
•The suitable digging tool for every application. Your machine is a multifunctional tool carrier and will pay for itself very quickly indeed
•Mechanic and hydraulic Liebherr quick-change adapter
4 R 946 Litronic
Performances
Thanks to its innovative excavator system technology, the R 946 crawler excavator has performance features that are truly unique. Characteristic elements of this system technology include the particularly effective and energy-efficient Positive Control twin-circuit hydraulic system, which was specifically designed for machines with a high level of superimposed functions and operational movements. The electronic pump control arrangement sets this technology apart, creating a new standard for performance and quantity control that entirely matches the operator’s needs.
Integrated excavator system technology
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High-tech for high |
Among the high-tech equipment on the Advanced |
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performance |
version of the R 946 is the newly-developed inte- |
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grated excavator system technology. This is based on |
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the Positive Control hydraulic system, controlled by |
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Liebherr electronics and the system software. The |
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sensors located at strategic points on the machine |
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form the basis for an intelligent system that allows for |
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fast and fluent working. |
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Positive Control |
When travelling straight or in a curve, and during |
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twin-circuit hydraulic |
levelling work, the two pump circuits of the hydrau- |
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system |
lic system are separated or grouped together, as the |
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need arises. Separation of the systems means that |
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different consuming components can be supplied |
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with different load pressures independently, and |
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saving energy too. By contrast, grouping the pump |
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circuits allows for maximum speeds with individual |
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or superimposed movements, and that means opti- |
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mum energy utilisation. |
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Power and speed |
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Faster work cycles |
The R 946 achieves particularly fast work cycles, |
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thanks, for example, to the powerful slewing drive of |
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the superstructure, the rapid slewing rates, and the |
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creation of high slewing torque. |
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Operating |
With an operating pressure of 380 bar, the R 946 |
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pressure |
achieves higher hydraulically limited load capaci- |
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ties and higher digging forces, of up to 229 kN, |
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and break-out forces of up to 238 kN; perfect for |
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more difficult operational situations such as canal |
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or pipeline construction. |
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Wide range of operational |
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Liebherr Diesel Engine |
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possibilities |
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• Specifically designed for construction equipment |
• Large number of equipment variants |
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• Maximum output at low engine speed |
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• Versatile selection of undercarriage |
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• Long life expectancy |
variants |
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• LIDEC-Engine Control – Liebherr Diesel Engine Control |
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• Broad operational spectrum, from |
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• State-of-the-art technology with common rail injection |
earthmoving, to grading work, to |
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system |
demolition |
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• Electronically regulation of injection-amount and-timing |
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• Complies with emission standard IIIB/Tier 4i |
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R 946 Litronic 5
LiDAT data transfer system
•Complete fleet management, all from one source
•Optimized economical performance of the machine park thanks to detailed view of the distribution of operating states and times
•Reports on capacity commitment and the use of the machine park can be called up daily via the Web portal
•Precise location of the machine
•Regional delimitation and fixed downtimes increase safety and reliability
6 R 946 Litronic
Reliability
Liebherr provides customers with solutions that lead the way for the future, solutions for maximum equipment reliability and availability, solutions which satisfy the most extreme demands for performance and quality. With more than 50 years experience in the construction of hydraulic excavators, we have an advantage in design and consultation that clearly sets us apart.
High stability undercarriage
Better force distribution The undercarriage concept leads to increased performance with improved service life. Thanks to the connection of the middle section being extended as far as the ends of the chassis beams, known as the X-design, the forces are better distributed, which increases the service life of the undercarriage.
Technology with perspective
Quality right down |
The at-a-glance layout of the hydraulic, lubrication, |
to the last detail |
and electricity lines makes for optimum functional |
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reliability and maximum availability of the unit. Best |
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possible corrosion protection is guaranteed thanks |
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to components and modules being finalpainted and |
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surface treated before assembly. |
Perfect optimisation |
Individual components of the drive train, manufac- |
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tured in-house, such as diesel engine, traction drive, |
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rotary actuators, operating pump and hydraulic |
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cylinder are perfectly optimised with one another. |
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As components of a total system designed for long |
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operational life, they guarantee maximum possible |
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reliability. |
Safety of functionality
Safety of functionality |
The cab is equipped with an integrated roll-over |
ROPS cab structure |
protection system (ROPS) in accordance with |
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ISO 12117-2, guaranteeing driver safety in any |
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situation. |
Automatic control |
The operator can entirely focus on his job, be- |
of functionality |
cause the integrated on-board electronic continu- |
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ously performs a comparison with pre-determined |
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target data. Eventual deviations from the target |
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parameters are shown on the display. |
Key technologies – |
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Spare parts service |
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Made by Liebherr |
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• Any spare parts required are |
• Perfect matching of the components |
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available within 24 hours – world- |
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to construction machine operations |
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wide. And that means high opera- |
• Engine, hydraulic pumps, transfer |
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tional readiness of the machines, |
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wherever, whenever |
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gears, travel drives, slewing drives, |
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slewing rings, and electronic compo- |
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• Over 80,000 spare parts in stock |
nents – all from the same source |
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at all times |
• Main steel components, such as |
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undercarriage, equipment modules, |
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and slewing superstructure, all |
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designed by Liebherr |
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R 946 Litronic 7
Touch-screen display
•7-inch touch-screen with colour display
•Wide range of adjustment, check, and monitoring possibilities
•Tough, reliable design (sealing tightness class IP 65)
•Video capacity with high resolution, reproduces the image from the rear area monitor camera in best possible quality
8 R 946 Litronic
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