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Liebherr has completed its Generation 8 range of mining dozers with the introduction of the new PR 776 G8. Introduced at MinExpo, the new 768 hp flagship dozer from Liebherr is built to tackle tough mining and quarry operations. 

“With the launch of the PR 776 G8, our entire range of mining dozers – which includes models with operating weights from 35 to 73 metric tonnes – is now comprised of Generation 8 machines,” said Dr Jörg Lukowski, Executive Vice President, Sales and Marketing, Liebherr-Mining Equipment. “And all of these machines include our latest product innovations and cutting-edge technology.”

The 70-tonne class PR 776 G8 features a new electronic machine architecture enabling the dozer to use more of Liebherr’s technologies. As the only mining dozer featuring a hydrostatic travel drive in the 70-tonne class, Liebherr says the machine offer best-in-class efficiency for customers. On average, the PR 776 will consume 38 litres of fuel per hour. “The hydrostatic travel drive system provides us with unmatched fuel efficiency and power delivery when operating the dozer,” Schuchter said. 

The combination of a Liebherr diesel engine, hydraulic motors and pumps connected by high pressure hydraulic hoses also creates a unique closed loop system reducing wear and tear on components. The standard eco mode allows operators to choose between high performance and maximum efficiency at any time. 

The PR 776 G8 is also compatible with the LiReCon (which stands for Liebherr Remote Control) remote operation system. At MinExpo, Liebherr demonstrated the system by operating a dozer in Austria from an operator station at the trade show in Las Vegas. 

“LiReCon is a teleoperation system that helps boost productivity while enhancing the safety and comfort of operators,” said Oliver Weiss, Executive Vice President of Research and Development, Engineering and Production, Liebherr-Mining Equipment. “It allows dozers or excavators to move through hazardous areas while operators are safely ensconced in an office — far away from the danger.”

The system is suitable for all dozer applications. It consists of the Liebherr Remote Control teleoperation stand; an operator workspace including all required controls; and onboard dozer installations such as cameras for all different angles and views, microphones for recording machine sounds, radio link receiver and transmitter.

LiReCon allows fast shift changes between operators and consequently reduces idle and downtime. As the operator is no longer tied to the machine, it also enables customers to reach new extraction areas in hazardous zones, extending the range of applications for Liebherr mining dozers. 

As part of its work with the Australian-based Fortescue, Liebherr is developing a battery-electric dozer, which is expected to enter series production in 2029. The battery power module for this PR 776 BEV will also be supplied by Fortescue Zero. The PR 776 BEV is part of the $2.8 billion USD deal to deliver 475 zero emissions mining machines. Through the partnership, Liebherr will deliver 60 PR 776 electric dozers by the end of 2030.

“As an OEM within the mining industry, decarbonization is a vital part of our work,” Weiss said. “We take our environmental, social and corporate governance responsibilities very seriously and have incorporated these into our strategies for meeting the goals of our zero emission mining program.”

To learn more about the future of zero-emissions off-highway vehicles, hear keynote speeches about the latest innovations in the field, and visit a wide array of exhibitors, book your tickets to the DZOM EXPO, taking place at the Donald E. Stephens Convention Centre in Chicago, IL, on December 3–4, 2024.

For more information, visit our website or email us at info@innovatrix.eu for the event agenda.

Source:

Equipment Journal

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