Connect with us

Tech

Liebherr’s Largest Dozer, the PR 776, Unleashed on the U.S. Market

Published

on

Since its market launch in 2016, as the world’s largest hydrostatic dozer, the Liebherr PR 776 has exceeded customer expectations in productivity, efficiency and safety, its manufacturer says. Whether it is heavy-duty ripping, grading or other duties, the PR 776 is designed to accomplish them all.

With the PR 766 G8 introduced at the beginning of 2021 and the smaller PR 756 G8, Liebherr now offers a fleet of dozers, ranging from 78,044 to 161,354 pounds of operating weight for tough construction and mining operations.

To further boost use of the machines, while also improving safety, comfort and productivity, customers can tele-operate their machine with Liebherr Remote Control (LiReCon). 

During a recent Customer Appreciation Day at its Newport News, Virginia headquarters, Liebherr USA added the PR 776 dozer and several other machines to its available lineup in North America.

Efficiency and performance

The PR 776 is the only mining dozer said to feature an infinitely variable hydrostatic travel drive.  

Powered by a Liebherr 12-cylinder, 768-horsepower diesel engine, the PR 776 allows operators to choose between high performance and maximum efficiency via the Eco control system, which enables greater travel drive efficiency in light to medium operations and provides greater fuel savings.

One advantage of the drive concept, according to the company, is the optimization of pressure flow. Hydraulic pressure is based on-demand according to the task. If, for example, the full feed of pressure supply is not required when operating, this is automatically returned. A product manager said the high drive also prevents extra wear on the sprocket teeth because it’s not digging in the dirt all the time and requires less horsepower for the same reason.

Liebherr says if required, the engine power is automatically increased for a brief period based on the current requirement. As well as responding more rapidly, the machines offer a significant increase in performance potential and pulling power and a higher reverse speed.

Another key advantage of hydrostatically powered crawler tractors or dozers when working in restricted spaces is the excellent maneuverability with continuous power to both tracks. All steering motions, including turning on the spot, are fast and precise. When involved in ripping work, the ripper can be positioned precisely to enable it to apply power when ripping layers of hard rock.

Intuitive operation and comfort

Liegheer dozer operation cab.The cab of the PR 776 purposely designed for comfort, convenience, and simplicity of single joystick operation.LiebherrThe cab of the PR 776 is designed for comfort, convenience and simplicity with single joystick operation. The cab noise level is rated at 76 decibels.

The multifunction joystick houses all operating and steering movements at the palm of the hand with only one electronic input element. This operating concept was subjected to rigorous testing at Liebherr and is an important innovation for the 70-ton dozer category, particularly in mining applications, the company says. Operators can quickly find their bearings in the PR776 platform.

All instruments and operating controls within the cab are carefully organized for easy reach. Key functions and machine settings can be adjusted by the operator via the touchscreen display. Eco function parameters, automatic engine speed reduction, travel drive response, steering as well as standard safety functions such as the rearview camera can be all be accessed through the intuitive touchscreen display.

An automatic air-sprung seat detects and adjusts to the operator and deactivates the machine when exiting the cab without a safety lever having to be actuated.

Liebherr Remote Control (LiReCon)Liebherr Remote Control (LiReCon) boosts safety, comfort and productivity in dangerous areas.LiebherrReady for the future

The LiReCon system is suitable for all dozer applications. It consists of the Liebherr Remote Control teleoperation stand, a state-of-the-art operator workspace with all required controls, and onboard dozer installations: cameras for all different angles and views, microphones for recording machine sounds, radio link receiver and transmitter.

The high-resolution main screen provides complete view on the worksite and around the dozer. The optional active person recognition system identifies people and obstacles in the work area and protects the dozer from damage. Liebherr Remote Control allows fast shift changes between operators and reduces idle and down time. As the operator is no longer tied to the machine, Liebherr Remote Control also enables customers to open new extraction areas in danger zones, extending the range of applications for Liebherr mining dozers.

Maximum safety

The design of the Liebherr PR 776 offers all-round visibility, with larger panoramic windows and the downward sloping design of the machine. The standard reversing camera is integrated into the front display and switches to full-screen mode automatically when the dozer is in reverse. 

Liebherr was specifically interested in highlighting the ROP/FOPS protection being integrated into the overall cab structure. A normal safety feature, but even with the integration to the cab structure, forward visibility remains unobstructed because the exhaust system and lifting rams were positioned behind the A-pillars. Similarly, side views are not obstructed by the machine’s extended work platform, which allows easier access to various service points.Liebherr PR 776 safety ladderThe ladder serves as an access point to the cab and also as a lockout mechanism. The machine will not move as long as the ladder is in the down position.Equipment World

An optional portion of the platform is the illuminated safety ladder. Stored along the working platform, it only causes limited obstruction for the operator. In addition to safer access to the cab platform, the ladder also serves as a lockout for the machine, preventing any motion of the tracks or blade until it is properly stored.

For daily maintenance and service work, Liebherr has included multiple ground-level service points to reduce a tech’s need to climb up and down the machine. At ground level there is an emergency stop button, a lockout switch, three quick-change coupling for the engine, splitter box, hydraulic oil and engine oil. In addition, engine compartment doors open to a wide angle, and the cab tilts up for maintenance purposes as needed. 

According to the company, depending on the nature of the work, and provided that regular checks are performed, the change interval for Liebherr-plus hydraulic fluid or engine oils can be up to 8,000 hours of operation. Liebherr’s fleet management system LiDAT provides an 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.

There are also custom-developed different configuration packages in-house for extreme applications such as deserts where extreme climates and low temperatures are common.

Tech

Cat’s Next Generation 255 and 265 Get More Power, Lift Height

Published

on

By

Caterpillar is bidding farewell to its 259D3, 279D3 and 289D3 compact track loaders with the introduction of its new, next-generation 255 and 266 models.

The completely redesigned models debuted at media and customer events at Caterpillar’s Edwards, Illinois, Demonstration and Learning Center last week. The 255 and 265 offer improved engine performance, more lift height, a roomier cab and more standard technology than their predecessors.

“We kept the DNA of the D3 series while reimagining the possibilities of loader performance using voice of customer feedback to lead the way,” says Trevor Chase, product application specialist for Caterpillar. “Both next-generation models leverage the many benefits offered by the vertical lift design. The new Cat 255 replaces the 259D3, while the 265 replaces both the 279D3 and 289D3 machines.”

The CTLs are the last of Cat’s building and construction products to get the next-generation treatment and simplified nomenclature. The first number (2) represents the skid steer loader and compact track loader machine family; the middle number (5 or 6) designates the machine size; and the ending number (5) is the compact track loader identifier. Skid steers will be identified by a 0 end number. Additional new models will roll out in the coming months, the company says.

Caterpillar 265 compact track loader carrying a blockCaterpillarMore power and torque

Cat equipped the 255 with a C2.8T engine and the 265 with a C2.8TA engine, both at 74 horsepower. This gives the new machines a significant boost in torque – 13% for the 255 and 43% for the 256 – over their D3-Series predecessors. The engine and cooling package are mounted lower in the frame for added visibility out the rear window and stability while lifting heavy loads.

Customers attest that the added lift height makes truck loading easier. The 255 offers 10 feet 4 inches of lift height, while the 265 can reach 11 feet high.

“The lift height has made a big difference when loading trucks,” said Derrick Roger, owner of Coast to Coast Lawnscapes, who spent several months testing the 255. “You can get on top of that truck now and empty the bucket; whereas, before you would have to shake the bucket to try to get the material to fall out.”

The 255 delivers 36% more tilt breakout, 26% higher lift breakout force and a 24% increase in rated operating capacity (ROC). The 265 also delivers 19% higher tilt breakout force and 22% higher lift breakout force.

Standard hydraulic pressure has been increased to 3,500 psi, allowing the 255 and 265 to operate all Cat Smart Attachments with the standard auxiliary hydraulics provided.

If demanding attachments require additional hydraulic flow, customers can have their Cat dealer activate the high flow functionality on the machine or remotely via software update. This makes it possible for the CTLs to hit 30 gallons per minute of flow at the standard system pressure.

A High Flow XPS factory option increases auxiliary hydraulic system pressure to 4,061 psi for both models, while also increasing the hydraulic flow to 30 gallons per minute for the 255 and 34 gallons per minute for the 265.

The torsion suspension undercarriage delivers better operator comfort, track wear and material retention, plus the stiffer design results in smoother graded surfaces, Cat says. A new 12.6-inch bar-tread narrow track option is available on the 255.

A more spacious cab

Cat says it has increased the cab width by 2.75 inches without making the machines wider and the footwell-to-ceiling height by 1.8 inches. The larger cab gives operators an additional 1.5 inches of hip room and 1.1 inches more width between the joysticks.

A range of new mechanical and air-ride suspension seat options are available, including a ventilated and heated seat. A new automatic temperature control allows operators to set a specific temperature. Relocated vents help cool or heat the machine quickly.

The standard package includes the same 5-inch LCD monitor as the D3 Series CTLs, which offers Bluetooth connectivity and functionality for the rearview camera feed, creep, job clock, and maintenance reminders.

Customers can upgrade to a new 8-inch advanced touchscreen monitor, like the display found in Cat’s next-generation mini excavators and small loaders. It delivers advanced radio control and supports the 270-degree multicamera option. The advanced monitor pairs with the advanced joysticks for integrated control of all machine functions and adjustments.

“You can adjust the movement – or the aggressiveness or the conservativeness – of how your tracks and lift arms work through your advanced touchscreen display,” Dante Thomas, skid steer and CTL marketing manager, said. “And you can control of all of your display functions from the advanced joysticks. There are buttons with enter and select functions on those joysticks that you’re able to change any functionality that is possible.”

Cat also redesigned the entry, making the 255 and 265 easier to enter and exit. The cab door can be opened even when the lift arms are not fully lowered to the frame stops. It can be removed without tools in less than one minute.

Advanced technologies

Calling the 255 and 265 “one of the most attachment-friendly machines on the market,” Thomas says both the standard and advanced monitors can run Cat Smart Attachments, such as the dozer and grader blades and backhoe.

“It has attachment recognition that when you plug the attachment into the machine, it recognizes which attachment is connected. It adjusts your joystick pattern, so it gives you intuitive and simple control,” says Thomas.

The available Cat Product Link Elite system tracks machine hours, location, asset utilization, provides fault code details and delivers advanced monitoring and machine health, that is remotely accessible via VisionLink. In addition, Product Link Elite provides remote flash and troubleshooting capabilities and quickly enables the remote activation of the SEA High Flow feature.

[embedded content]

Continue Reading

Tech

Quick Data: 2023 Top-Selling Wheel Loaders and Auction Trends

Published

on

By

Quick Data is a snapshot of new and used wheel loader sales trends from Randall Reilly’s EDA equipment financing data, TopBid auction price service and EquipmentWatch market trend reports.

Demand for wheel loaders has softened with new and used financed wheel loader sales down year-over-year from August 1, 2022 to July 31, 2023 according to Randall Reilly’s EDA equipment financing data.

Financed new wheel loader sales dropped 10%, while used financed wheel loader sales fell by 15% compared to the same period last year.

Cat (22.4%), Deere (21.0%) and Komatsu (12.4%) held their positions year-over-year as the top three sellers of new financed wheel loaders. Top models sold included the Deere 544 P-Tier (401), Deere 624 P-Tier (380) and the Komatsu WA270-8 (364).

[Watch: “A Really Solid Machine” – Test Run of Komatsu’s WA475-10 Wheel Loader]

Cat (28.5%) and Deere (22.9%) also snagged the No. 1 and 2 positions for the highest number of financed used units sold, with Case (14.7%) claiming the third spot. On the date we examined the data, the top-selling models were the Case 321F (340), Cat 926M (164) and the Case 621G (159). 

During this period, there were more buyers of new loaders in Florida (955) than in any other state. Buyers of new wheel loaders were also prevalent in Texas (893) and Illinois (665). Those states were also top buyers of used financed machines, with 712 units sold in Texas, 413 in Florida, and 412 in Illinois.

EDA data is compiled from state UCC-1 filings on financed construction equipment. EDA continually updates this data as information comes in from each state.

[Related Content: A Rundown of the Latest Wheel Loaders for 2023]

Used Wheel Loader Market

Used wheel loader prices rose 10.1% for the 12-month period from August 1, 2022 to July 31, 2023, according to Randall Reilly’s EquipmentWatch market trend data.

The average price for a used wheel loader was $137,465 in July 2022 compared to $151,367 in July 2023. The average age of used wheel loaders fell slightly during the period, dropping from 8.8 years to 8.3 years.

EquipmentWatch Used wheel loader price and age chartEquipmentWatchThe average age and price were calculated on 153,356 resale listings during the period in the EquipmentWatch database.

Over the last 12 months, prices for used wheel loaders have in general increased, with the largest gains in October 2022 (6.5%) and February 2023 (2.9%).

EquipmentWatch defines fair market value (FMV) as the monetary value of an asset that can be expected in a transaction with a single seller and single buyer, neither of whom is under any compulsion or time restriction to complete the transaction. FMV for heavy equipment is most closely associated with the private resale market, as opposed to the public auction market.

Wheel Loader Auction Prices

Caterpillar also dominated the auction charts, accounting for 18 of the top 20 wheel loaders sold in terms of price for the 12-month period of September 1, 2022 to August 31, 2023. Deere and Komatsu were the only other manufacturers to appear on the list.

The top auction price spot went to a 2021 Cat 966M with 2,188 hours. It sold for $400,000 at a Ritchie Bros. auction in Orlando, Fla., on September 21, 2022. The second-highest price paid was $315,000 for a 2019 Cat 980M with 7,836 hours at another Ritchie Bros. sale in Atlanta, on December 1, 2022. Rounding out the top three was a 2018 Deere 944K with 8,941 hours. It sold for $290,00 at a J.M. Wood Auction Co. sale in Montgomery, Ala., on March 21, 2023.

In total, there were 358 wheel loaders sold at auctions tracked by Top Bid during this time, with an average price of $99,747. (This does not include any units sold for less than $5,000.)

EDA, Top Bid and EquipmentWatch are owned by Randall Reilly, parent of Equipment World.

[Related Content: Heavy Equipment Auctions Set for Second Half of 2023

Continue Reading

Tech

Video: A closer look at Rokbak articulated dump trucks

Published

on

By

Volvo Construction Equipment bought Terex’s off-road truck line in 2014, and six years later, it rebranded its articulated haulers under the Rokbak name.

On this episode of The Dirt, we hear from Paul Douglas, Volvo vice president of rigid haulers, who explains the differences between the old Terex line and the Rokbak trucks. He also gives a hint at some of the new things coming from Rokbak, including redesigned cabs and replacing the current trucks with new models. There’s also the possibility of a new size truck to hit the market.

Rokbak, as with other construction equipment brands, is working toward a zero-emissions future. On this episode, he explains where the articulated dump truck market is heading in terms of alternative fuel. He adds that customers will see big changes in emissions and engines in the next five years, with the ultimate goal of reaching zero emissions within 10 years.

So to learn more about Rokbak and what the brand has in store for the future, check out this episode of The Dirt.  

Equipment World serves up weekly videos on the latest in construction equipment, work trucks and pickup trucks – everything contractors need to get their work done. Subscribe and visit us at equipmentworld.com!

In This Episode:

  • 00:00 – Rokbak Articulated Haulers
  • 00:30 – Is Rokbak More Reliable Than Terex?
  • 03:22 – Brand New Cab
  • 06:10 – More Changes to Upcoming Rokbak Trucks
  • 09:20 – What Will Rokbak Do in the Next 2-5 Years?
  • 11:24 – What Alternative Fuel Will Rokbak Haulers Use in the Future?
  • 14:53 – Final Thoughts

Continue Reading

Trending

Copyright © 2022 topbuildhomes.co.uk