Liebherr develops its biggest ever dozer

Liebherr is making a major step in the bulldozer market with the launch of its new PR 776 model. This is the firm’s biggest ever bulldozer and also the first hydrostatically powered crawler tractor in the 70tonne weight class. The firm claims that the machine offers significantly lower fuel consumption than other bulldozers in this class, while its hydrostatic drive also helps reduce wear and tear on tracks and chains, a key cost saving. The dozer has been designed to make it easy to use with a joystick co
March 10, 2016 Read time: 3 mins
Liebherr’s PR776 is the largest hydrostatic dozer on the market and the firm’s largest ever bulldozer
718 Liebherr is making a major step in the bulldozer market with the launch of its new PR 776 model. This is the firm’s biggest-ever bulldozer and also the first hydrostatically-powered crawler dozer from any manufacturer to compete in the 70tonne weight class.

The firm claims that the machine offers significantly lower fuel consumption than other bulldozers in this class, while its hydrostatic drive also helps reduce wear and tear on tracks and chains, a key cost saving.

Unlike previous dozers from the firm however, the new PR776 features a high drive system that is said to help deliver high traction. As with other hydrostatic dozers, the PR776 is said to have good manoeuvrability and can also maintain traction while turning under load.

The dozer has been designed to make it easy to use with a joystick control as well as a good all-round view of the blade edges and the surrounding area. Power comes from a 12-cylinder Liebherr diesel delivering 565kW. The PR 776 has a maximum operating weight of 74tonnes and is equipped with an 18m³ semi-U blade or a 22 m³ U blade.

The ECO function is standard for all Liebherr Generation 6 dozers, including the new PR 776 and this allows operators to choose between high performance and maximum efficiency. The ECO control system enables greater travel drive efficiency in light to medium operations, and also provides greater fuel savings.

The proactive power control is another innovation and engine power can be automatically increased for a brief period if needed. As well as responding more rapidly, the machines offer an increase in performance and pulling power and a higher reverse speed.

The intelligent engine management system combines with the power efficiency system and hydrostatic to maintain constant engine speed, increase overall machine efficiency and reduce fuel consumption. Liebherr has also custom-developed different configuration packages in-house for extreme applications such as deserts where extreme climates and low temperatures are common.

The standard Liebherr fleet management system LiDAT provides an accurate, efficient overview of essential servicing work, warning messages, the machine’s position and actual consumption data and filling levels.

Depending on the agreement with the customer, the data is updated several times a day and can be called up whenever needed via the internet.

All videos

For more information on companies in this article

Related Content

  • Intelligent bulldozers provide productivity boost
    September 27, 2013
    New smart dozers provide faster working and greater efficiency - Mike Woof reports Both Caterpillar and Komatsu are making key moves in offering intelligent bulldozing capabilities on their latest machines. In the medium-sized bulldozer market, both companies have sophisticated new models that will increase both productivity and finish quality, while lowering running costs for the user.
    Read More
  • Innovative earthmovers coming to market
    October 12, 2017
    A wide range of innovative earthmover solutions is now coming to market - Mike Woof writes Generally with major construction equipment exhibitions timed for the second quarter of each year, this is when manufacturers will roll out their latest earthmoving solutions. However 2017 has turned out to be something of an anomaly, with the major firms continuing to unveil new models. Firms have introduced new wheeled loaders, excavators, and dozers, although arguably, some of the most interesting developments
    Read More
  • Hyundai’s high performing mid-size dozer
    March 3, 2025

    Hyundai Construction Equipment claims that its powerful mid-weight dozer delivers best-in-class power and tractive effort, precise grading and a range of smart technologies. 

    The new HD130 offers fully electrohydraulic controls and 2D blade dozing assist function as standard. It also has a narrow nose with inline pre-cleaner and large windows for high visibility, as well as a 117kW engine providing best-in-class power output. The tiling cab allows access to major driveline components while the durable undercarriage offers long service life

    Read More
  • Liebherr’s PR 736 dozer launched on US market at Conexpo 2014
    January 6, 2017
    The PR 736 dozer being introduced to the US market at Conexpo 2014 is the first model in Liebherr’s new Generation 6 series and is said to offer customers increased efficiency and lower fuel consumption and CO2 emissions. Among the innovations on the Generation 6 machine models, including the 20-25tonne service weight PR 736, are electronic travel speed regulation with an integral eco-function, and pro-active power control.
    Read More

Highlighted Content