Tag Archives: Liebherr

National Group ups the excavating ante at NSW gold mine with Liebherr R 9200

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National Group, through National Plant & Equipment, has supplied a Liebherr R 9200 excavator to an open-pit gold mine in western New South Wales, Australia.

The Liebherr R 9200 offers the biggest payload in its class with the 12.5 cu.m bucket capacity enabling sustainable performance and peak fuel burn efficiency in the most challenging conditions, according to the OEM.

Equipped with a Cummins QSK38 engine, with a rating of 810 kW at 1,800 revolutions per minute, the R 9200 is available powered by both diesel and electric motors. It can also be fitted with backhoe and face shovel attachments.

National Group Managing Director, Mark Ackroyd, said the arrival of the Liebherr R 9200 had further diversified the company’s already impressive fleet of equipment.

“The feedback from site is that the Liebherr R 9200 has been very well received,” Ackroyd told Australian Mining. “Our customers have been impressed with the performance of the Liebherr R 9200; it’s a very good machine and is competitive with other machines of a similar size and type.”

National Group is known across Australia for its dry hire of heavy earthmoving equipment. Working alongside Liebherr, it selected the R 9200 excavator for site, applying the joint understanding of the mine, the work being completed there and previous success using Liebherr equipment.

Liebherr-Australia Major Account Manager, Ben Kerr, explained: “Liebherr’s relationship with National, and understanding of the gold mine site requirements, allowed us to put forward the appropriate sized excavator and tailored bucket size to suit both National’s and site’s requirements.

“The addition of this R 9200 to National’s fleet further expands their range of mining equipment, building on the strong relationship and ease of doing business between the two companies.”

Liebherr-Canada increases northern Ontario exposure with new branch

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Liebherr-Canada has opened a new branch in the mining-rich region of Sudbury, Ontario.

The branch will enhance service to customers throughout northern Ontario, continuing the company’s expansion in the Canada market, it said.

“Recognising the importance of projects in northern Ontario, the new branch brings Liebherr equipment specialists closer to existing customers and provides dedicated local service in the region,” it said.

Liebherr’s Sudbury branch is its 10th in Canada and second in Ontario (Liebherr-Canada’s headquarters are in Burlington, Ontario), serving as its northern Ontario hub and providing rapid technical assistance, field service, and local parts distribution to its customers, it said.

Austin Engineering on the importance of payload matching

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Austin Engineering’s David Pichanick thinks miners need to keep payload matching front and centre of their minds when looking to add to, refresh or replace their truck and shovel haulage fleet.

Why payload matching and what’s involved in matching an excavator to a truck?

According to Pichanick, Global Manager Market Development & Innovation at Brisbane-based Austin Engineering, the answers are efficiency, productivity and profit, and understanding factors such as site conditions, load and haul equipment and production targets.

Anecdotal research has revealed payload matching around achieving lowest cost per tonne is not well understood within the mining industry, according to Austin. Irrespective of the loading tool (excavator, shovel or wheel loader), the accepted goal is to get the payload consistent over time to maximise productivity and production.

Buying the right equipment package – loading tool and dump bodies – is vital and history has shown that the bigger the capital expenditure up front, the better the return on that investment, particularly around reliability and availability, Austin says.

“The loading tool comes first, followed by the dump trucks,” the company said. “And, ironically, depending on the equipment package, that could be the start of issues of reduced load and haul productivity.”

Pichanick says the most efficient bucket, excavator and truck combination currently in Australia is a Liebherr R9800 three-pass loading Komatsu 930E-5 dump trucks, fitted with Austin ‘Ultima’ bodies. Released last year, the new Ultima dump truck body has, Austin says, a unique ‘V’ profile floor that is designed to actively channel the load to the centre of the tray.

What makes this combination so efficient and consistent?

Every excavator and truck manufacturer will provide researched and validated tables and graphs that show the best truck and excavator combination, of their brand, to maximise payloads, Austin says. The problem arises when customers don’t buy the same brand of trucks as the excavator, or vice versa.

For reasons of price, contracts, preference and proven performance history, many miners will purchase an excavator from OEM ‘A’ and trucks from OEM ‘B’. And because the bodies on the trucks are not matched – as set by the manufacturer – to the loading tool, the concept of payload matching enters a grey area, productivity drops and costs around load and haul increase markedly, the company says.

This mismatching becomes apparent on site as truck OEMs look at variations in the 10/10/20 rule to maximise payloads and the direct effect the specific gravity (SG) of the product has on loads. And, although unique, these two elements have a close correlation when loads and capacities are being decided, according to Austin.

“The 10/10/20 rule has long been recognised as a reliable reference for truck payloads and recognises that variations occur in SG, fill factors and loading equipment,” the company said. “However, in an attempt to optimise payload capacity, truck OEMs are negotiating flexibility around the rule depending on reliable SG readings. Today, SG readings are coming from the digital technology available in the latest loading tools; technology that measures payload per pass and lets loading tool operators see if the SG is changing. This is a much safer system than waiting till the load is on the truck.”

Austin Engineering has a vested interest in any discussions around payload matching. The company designs and manufactures custom-designed excavator buckets and truck bodies for the mining industry but, as an independent OEM, can be objective about its recommendations around payload optimisation, it says. Austin conforms to all OEM specifications, globally.

The company has invested heavily in advanced software to match loading tools to truck bodies and, argues Pichanick, devotes a lot of time and effort to the science of payload matching and, by extension, maximising productivity and profit for the end user.

Which brings the discussion back to the Liebherr R9800 and Komatsu 930E-5 dump trucks – possibly the most efficient excavator and truck combination in Australia now.

“We were asked to provide the truck bodies,” Pichanick said. “The customer didn’t want the excavator/truck combination suggested by either supplier but purchased the equipment package they believe will maximise the return – in terms of performance, availability and reliability – over the longer term. Our bodies were custom built to fit the trucks and complement the capabilities of the excavator. The load and haul tonnages they are generating confirm the buying decision.”

From Pichanick’s point of view, this is the true proof of successful payload matching.

Premier Coal replenishes fleet with Liebherr R 9400

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Premier Coal has recently taken delivery of a new Liebherr R 9400 hydraulic excavator at its operation in the Collie Coal Basin of Western Australia.

The new R 9400, which was delivered to the Yancoal Australia subsidiary earlier this month, will replace a R 994B on site and join another R 994B, a R 995 and two R 996Bs in the excavator fleet, Liebherr said.

The R 9400 follows the Liebherr design philosophy of maximising the machine’s performance by improving the efficiency of all individual subsystems. Engineered for optimum serviceability the machine is designed to ensure maximum uptime, the OEM said.

Designed for rough application, the R 9400’s heavy-duty three-piece fatigue-resistant undercarriage provides efficient superstructure weight distribution and reduces ground-bearing pressure enabling the necessary stability and reliability, according to Liebherr.

Premier Coal is Western Australia’s largest coal producer, mining about 4 Mt/y, according to the company. It is managed by Yancoal Australia on behalf of its majority shareholder Yanzhou Coal Mining Company.

A modern open-pit operation, Premier has a 240 t truck and large shovel fleet along with crushing, blending, and train and truck loading facilities, it said.

Premier’s coal has outstanding combustion characteristics, according to the company, as well as low ash and sulphur making it suitable for many applications including steam raising (power generation), cement making, and direct heat reduction. Its coal is currently used to generate the bulk of Western Australia’s power supplies, Premier said. It is also used in alumina and synthetic rutile production.

Demand for OEM simulators, conversion kits high, Immersive Tech says

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Immersive Technologies says it has engaged in an “unprecedented level” of mining machine simulator development for a diverse range of original equipment manufacturers (OEM) over the past year.

This trend is set to continue with projects underway for new and existing customers to build simulators for heavy machinery manufactured by BELAZ, Caterpillar, Epiroc, Hitachi, Iveco, Komatsu, Liebherr, MACK and Volvo, the company said.

In the last 12 months, Immersive Technologies has released new simulator modules (Conversion Kits®), for Cat Line of Sight Remote Control, Cat 777E Truck, Komatsu 930E-5 Truck, Liebherr R9200 Excavator, Sandvik DD311-40C Jumbo, Volvo FH16 Light Truck and many more, it said.

Investment in Conversion Kits for multiple OEM machines is continuing unabated with projects in development within the next months for: BELAZ 75131 Truck, Cat 994K Wheel Loader, Hitachi EX5600-7 Shovel, Komatsu 730E-8 Truck, Letourneau L-2350 Gen 2 Wheel Loader, Liebherr R9800 Excavator, Mack GU813E Light Truck and others.

Projects are underway to produce simulators for machines manufactured by BELAZ, Caterpillar, Epiroc (formerly Atlas Copco), Hitachi, Iveco, Komatsu, Liebherr, MACK and Volvo.

Wayde Salfinger, Executive Director – Marketing at Immersive Technologies, said: “Our investment in simulators for a diverse range of OEM’s machines is increasing, driven by demand from our customers. Immersive has always and will continue to be focused foremost on the needs of our customers, most of whom operate mixed OEM fleets.”

Salfinger added: “Immersive Technologies’ acquisition by Komatsu will not change our strategy, we will continue to support machines from all OEMs; that’s what our customers expect.” Komatsu announced, just last month, that it would acquire the mining simulation and training specialist.

Immersive Technologies credits its ongoing growth in demand on its proven and verifiable success in increasing mine profitability by optimising the safety and productivity of equipment operators. “These results are driven by a clear focus on integrating people, process, and technology to reduce risk, quantify training impact and effectively managing the training process,” the company said.

Mine automation starting to take hold, RFC Ambrian says

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In its second report in a series on innovation and new technology in the mining industry, RFC Ambrian has tackled the subject of autonomous mining equipment, which, the authors say, has reached an “important level of maturity”.

The report considered both surface and underground equipment, but most notably surface mine haulage trucks where there has been an area of significant focus for major mining companies.

As the authors said: “This has reached an important level of maturity, although it is still evolving and its penetration across the industry is still in its infancy.”

AHS

The Autonomous Haulage Systems (AHS) have evolved from improvements in GPS for positioning and navigation, developments in sensors and detection –particularly radar and LiDAR, improved computing power and on-board monitoring, faster and more reliable networks and internet connection, and the development of effective and accurate algorithms and software, the authors said.

“AHS has appeared , first, at large mine operations where the benefits have the largest impacts, due to the high component of fixed costs in an AHS operation, and in developed countries where there is a shortage of skilled workers and labour costs are higher,” they said.

Outlining the potential benefits of AHS is straightforward, but finding hard data to support it is more difficult, according to the authors.

“Companies have made suggestions about the scale of improvement, but they are light on detail, definitions are not clear, and the data varies between companies,” the authors said.

Suggested improvements in productivity have come from Caterpillar (15-20%), Fortescue Metals Group (30%), Komatsu (15%), and Rio Tinto (15%), according to the authors.

“These improvements are still meaningful, and corporate companies would argue that every mine is different and that the mining companies and original equipment manufacturers (OEMs) that have so far implemented AHS have the right to guard this proprietary information and hold on to the competitive advantage,” the authors said.

Autonomy in other surface equipment

The authors said they are also now seeing this same technology used to automate other operations in the surface mine. This includes drill rigs, dozers, loaders and ancillary equipment.

“Much of this equipment is currently, at best, semi-autonomous, although a few mines have implemented fully-autonomous drill rigs and dozers,” they noted.

“Moving this equipment to full autonomy offers significant production improvements, although the scale of actual savings is not likely to be as great as those achieved with AHS,” the authors said.

“However, we have not yet seen quantified the downstream benefits of the resultant improved drilling and blasting.

“The automation of earth moving machines provides another step to increased productivity within the mine. However, loaders face additional challenges as a result of the variability of the loading face and the risk of collisions with the haulage trucks.”

Due to the complex nature of the bucket-media interaction, developing automatic loading functions that are better than or equal to expert manual drivers with regard to performance is a highly difficult task, according to the authors.

“As a result, fully-autonomous loading is not yet commercially available. Some observers suggest that the implementation of fully-autonomous surface loading is still some five years away, while others believe that full automation is unlikely.”

Underground mining

When it comes to underground mining, the authors of the report said, as with surface mining, full autonomy remains the goal.

“Mining companies and contractors are constantly looking to use technological developments to better utilise their investment in equipment and human resources and improve safety,” the authors said. “Particular features of traditional underground mines are: long unproductive periods caused by re-entry times required for operators after blasting; and higher health and safety risks due to geotechnical and environmental challenges.

“The use of autonomy underground aims to increase the productivity of the equipment and improve the safety of the operators.”

While the aims remain the same, full autonomy in the underground mine is not as advanced as in the surface mine, according to the authors.

“Haul trucks are used less frequently in underground mines, although a few mines are using haul trucks with AHS. More underground mines perform a short cycle of loading, hauling and dumping from a draw point to a tipping point with LHD equipment.

“Implementation of autonomous systems underground for LHDs is occurring, however, as with surface loading, one of the major hurdles to automating LHDs is replacing human judgement required for filling the bucket.”

This has seen full autonomy being used for the hauling and dumping cycle, but semi-autonomy usually used for loading, according to the authors. “Successful trials of fully- autonomous LHDs have been achieved and Sandvik i-series now offers an automated bucket filling assistant as a standard function,” they said.

Underground drilling operations, meanwhile, are achieving increased levels of autonomy but are also presently only semi-autonomous.

Robotic rail operations

The authors then looked at autonomous rail haulage systems, a segment of the market that has gained in prominence in the past few years thanks to initiatives such as Rio Tinto’s AutoHaul in the Pilbara of Western Australia.

The authors said: “There has been some form of automation on worldwide metro systems for many years, but one area where autonomous technology has yet to gain a foothold is rail freight. Trials are underway in Holland and Germany but implementing autonomous train driving on a complex rail network, with passenger trains and freight trains, is more difficult than on a metro system.”

The one exception to this is in the mining sector and AutoHaul, they said, where Rio has completed commissioning of the world’s first fully-autonomous, long distance, heavy-haul rail network which is now in full operation.

Pace of implementation

Despite the acclaimed success and the relative level of maturity of the technology, the wider implementation of AHS does not appear to be happening very fast, the authors argue.

“The systems of both the two main suppliers (Caterpillar and Komatsu) are well proven and have delivered positive results, although, according to consultants, both systems also have examples of less-than-expected performance.

“Nevertheless, the technical issues appear relatively minor and there is interest right across the industry but, in spite of the potentially significant benefits, more mines are not now using AHS.”

There are a number of likely reasons for this, the authors said, explaining that one of the most important is a lack of skilled personnel.

“We believe there is a lack of in-depth knowledge of the technology and limited personnel with the requisite experience, skills, and training throughout the industry’s hierarchy,” they said.

“Further, there is a shortage of skilled autonomous operators, developers, and consultants, some of who are moving to the autonomous auto market.”

Important factors in the success of AHS appear to be the level of management commitment, planning, and focus in the implementation, with the best results reported from well-operated mining sites, the authors said.

“Another factor is likely to be limitations on equipment supply from OEMs for new equipment and truck conversions, either due to manufacturing backlogs or maybe market caution, limiting investment. This is allowing the OEMs to be more selective in their customers.”

The authors cautioned: “However, if the existing suppliers do not develop additional capacity quick enough this could create opportunities for additional entrants in to the market.”

Capital availability in the mining industry could also be an issue holding back AHS advancement, they said, although it is less tight than it has been in recent years.

“Certainly, some lower-margin operations might struggle to finance the capital, although the uplift in relative profitability could be transformational, with relatively quick paybacks,” they said.
And the historical conservatism of the mining industry is also likely to be a factor, the authors said.

“There is still a natural reluctance within the industry to adopt new or unproven technology due to the high capital cost involved and the potential operational and reputational risks involved.

“This will be compounded if the organisation has limited experience and limited access to the technology.”

You can read the full report here.

Liebherr crawler excavators proving their worth in South Africa chromium mine

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After more than 1,000 operating hours, three Liebherr R 920 crawler excavators are still exhibiting the fuel efficiency, manoeuvrability and hydraulic performance that convinced mining company KEDASE to buy the equipment, the original equipment manufacturer said.

KEDASE, based in Boshoek, South Africa, purchased three R 920 crawler excavators from Liebherr in 2016. They are used for trenching, pipe laying and the feeding of a screen in a chromium mine in the country.

With an operating weight of 21 t and equipped with a Stage IIIA/Tier 3/CHINA III engine with an output of 110 kW/150 hp, the R 920 crawler excavator was developed specifically for these types of applications, according to Liebherr. For KEDASE, the machines have been configured with a 5.7 m boom, a 2 m stick and a 1.15 m³ bucket.

“The R 920 concept is based on the standard European models with high levels of reliability and increased productivity combined with low fuel consumption,” Liebherr said. “Launched onto the market at Bauma 2016, the R 920 is accompanied by a revamp of the range of 20-25 t crawler excavators.”

In addition to the R 920 are the R 922 and R 924. The R 922 weighs 22 t and has an output of 110 kW/150 hp and the R 924 weighs 24 t with an output of 125 kW/170 hp. “These machines are aimed at less regulated markets like South Africa, South East Asia, Russia, China and India,” Liebherr said.

Since their arrival in 2016, the R 920 crawler excavators have met all expectations, according to the OEM.

“After more than 1,000 operating hours, these machines are currently used for nine to 12 hours every day with an average fuel consumption of only 15 l/h. The manoeuvrability and hydraulic performance, in particular, make the machines efficient on site. From the operator’s point of view, the R 920 is characterised by its speed, comfort, stability and performance: “I feel like I’m in a pickup”, one operator said.

Liebherr said the expectation is that these machines will keep performing over time and reach 15,000 operating hours.

First ore for FQM’s Cobre Panama copper mine

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First Quantum Minerals has introduced first ore to the processing plant at its 74 Mt/y Cobre Panama open-pit copper mine in Panama.

On February 7, ore was introduced through primary crushing and onto the stockpile with initial feed rates between 4,000-5,000 t/h. Then, on February 11, ore was introduced through to the first milling circuit.

Operation on ore continues and will move into all other sections of the processing plant including producing copper concentrate, according to First Quantum. The company is now focused on an efficient phased ramp-up for Cobre Panama continuing through 2019.

At full tilt, Cobre Panama is expected to produce 350,000 t of copper from an in-pit crushing and conveying set up that includes four box cuts with semi-mobile primary crushers – two per conveyor line – feeding two in-pit conveyor lines that feed two overland conveyors after a transfer station to the secondary crushing and the main process plant. The company uses a fleet of Komatsu Mining P&H 4100XPC electric shovels; 363 t Liebherr T 284C trucks, Komatsu Mining Le Tourneau L2350 large wheel loaders (with SR drive), Liebherr R 9350 hydraulic excavators and Cat 777G 100 t trucks at the operation.

Liebherr to showcase wheel loader safety additions at Bauma

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At Bauma 2019, Liebherr will for the first time present a package of multiple intelligent assistance systems for its XPower® large wheel loaders.

These systems include new active rear person recognition and a sensor-supported, integrated tyre pressure monitoring system. All systems have been developed by Liebherr and are fully integrated into the machine control.

Another Liebherr wheel loader world premiere is a new intuitive steering system that will be available for all mid-and large-series models from Bauma 2019 onwards.

From the smallest wheel loader, the L 506 Compact, to the largest model, the L 586 XPower, Liebherr will be displaying a cross section of all wheel loader size classes at the bauma show on April 8-14 in Munich, Germany.

The small wheel loaders, up to the L 509 Stereo, and all large wheel loaders of the XPower generation will be available with Stage V emission standards compliance for the first time from April this year.

Rear person recognition

The company said: “Liebherr’s new assistance systems increase comfort and safety in daily operation in a range of ways. One of their advantages is that they enable machine operators to concentrate more on operating their Liebherr wheel loader by removing additional distractions. For example, the active rear person recognition automatically provides a warning on the machine display and sounds acoustic signals if there is danger in the wheel loader’s rear area. A special feature of this system is that it uses sensors to automatically differentiate between people and objects with the aid of sensors.”

If a person moves in the area behind the machine, the system alerts the machine operator. The active rear person recognition is activated at a greater distance than warning systems for inanimate objects such as walls or columns. The operator therefore receives a more precise warning if there is a risk of personal injury. The active rear person recognition avoids an overload of warning signals, which in turn reduces the burden on the machine operator, while reducing or eliminating serious accidents.

Tyre pressure monitoring system

“Tyres are among the most expensive wearing parts on a wheel loader. Incorrect tyre pressure leads to increased wear and rising fuel consumption and results in high costs. Other negative consequences are stability limitations and reduced manoeuvrability. It is therefore important to address potential tyre pressure problems in good time,” the company said.

Liebherr offers a new integrated tyre pressure monitoring system for this purpose, which detects tyre pressure deficiencies early, ensures good manoeuvrability and increases the lifetime of the tyres, according to the company.

With the aid of sensors, installed on the tyres and protected from damage, the system records the status of the tyres and indicates this on the machine display. If there are deviations from optimal tyre pressure, the machine operator receives a warning notification on the display. This allows the operator to act early if there is insufficient pressure or excessive temperature levels in order to avoid safety risks and high associated costs.

The integrated tyre pressure monitoring system is available as standard for many wheeled earthmovers and container handling machines across the Liebherr group of companies.

National Group brings Hitachi and Liebherr excavators to Bowen Basin coal mines

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The National Group has delivered a pair of new excavators to two coal operations in the Bowen Basin of Queensland, Australia.

The first of these excavators, a Hitachi EX5600 (pictured below), was added to BHP Billiton Mitsubishi Alliance’s Peak Downs site where the National Group previously handed over five Liebherr Ultra-Class T 282C Trucks in September.

The second excavator, a Liebherr R 996B (pictured above), was delivered to its sister mine Poitrel, part of BHP’s other Queensland joint venture, BHP Mitsui Coal. The excavator is the first piece of equipment National Group has at the coal mine.

National Group Founder and Managing Director, Mark Ackroyd, said: “We have been working with BHP for some time now, especially at Peak Downs, so to be adding more equipment there is a testament to the machines we currently have operating for them and speaks volumes of our team on-site who do a great job with maintenance when needed.

“Poitrel, on the other hand, we are very excited to be adding our first piece of equipment there and for it to be the ever reliable Liebherr 996 digger. We’re confident they are going to love this machine and hope it is just the beginning of things to come.”

Bringing such big equipment to this part of Queensland is a complex process. National Group says it has the capabilities to handle all transport, assembly and delivery, giving customers peace of mind when securing these long-term rentals.

Ackroyd said: “We know how difficult it can be to get the bigger gear to Australia first of all, let alone having to worry about everything else once it arrives here. That is why we have worked very hard to build brands that complement each other in the entire journey of port-to-pit.”

National Group is coming off one of its best years to date, it said, however the company has no plans to slow down in 2019 with future plans already to invest in technology and enter the automation space.

Ackroyd said: “The mining industry is now following the technology trend around the world and automation is at the forefront of this. It is all about finding different ways to help your customers succeed and embracing innovation to get that edge over competitors.”