Tag Archives: haul trucks

Why the Pilbara leads the way in haul truck automation

Automation, Communications in mining, Equipment maintenance, IoT, Mining equipment, Mining maintenance, Mining safety, Mining services, Mining software, Steel and iron ore, , , , , , , , , , , , , , , , , , , , ,

A presentation at last month’s AusIMM Iron Ore 2019 Conference, in Perth, Western Australia, made it clear that the state’s steel raw material miners are leading the way when it comes to applying autonomous haulage systems (AHS) in open-pit mining.

Richard Price, Manager of Projects for Mining Technicians Group Australia (MTGA), has been involved in this technology space for a number of years, having initially witnessed an automation trial involving two trucks at Alcoa’s Willowdale bauxite mine, in Pinjarra, all the way back in 1994.

At the conference, his paper set out the state of play in Pilbara when it comes to AHS, explaining: the first commercial scale trial in iron ore took place at Rio Tinto’s West Angelas operation in 2008, there are two original equipment manufacturer (OEM) AHS operating in the Pilbara – Caterpillar Command for Hauling and the Komatsu FrontRunner – and the three major iron ore miners (Rio Tinto, BHP and Fortescue Metals Group (FMG)) were leaders when it comes to using autonomous trucks.

FMG is the largest operator of autonomous trucks in the Pilbara – making it effectively the largest in the world – with 128 at the end of June (according to the miner’s June quarter results). Rio, meanwhile, had 96 up and running, with BHP having a total of 50, as per publicly released data.

“FMG has plans to automate all of their trucks, including the first non-OEM trucks on an alternate OEM system,” Price said, with him adding that the company has now automated a number of Komatsu 930E vehicles using the Caterpillar Command for Hauling AHS: a world first.

“Additionally, FMG is also operating multiple Caterpillar OEM trucks onsite, in another world first having three classes of truck on the one system at the same site (789D, 793F and 930E),” he said.

While Komatsu, historically, has more time in the field with commercial autonomous applications – it surpassed 2 billion tons of autonomous haulage in November – than Caterpillar, the Illinois-based OEM has received more global success, being able to point to AHS deployments in the oil sands of Canada, the coal mines of British Columbia and Vale’s iron ore operations in Brazil.

“With regards to the on-board AHS componentry, the Komatsu system is somewhat simpler than the Caterpillar system,” Price said. “The significant difference is that Caterpillar utilises a LiDAR (Velodyne 64-layer), with RADAR, whilst the Komatsu system uses RADAR only. However there are additional differences in the on-board controls – the Caterpillar system is known for having more significant vehicle on-board computing power, versus the Komatsu system which places greater reliance on the wireless network whilst performing most of the calculations on the server side.”

Even with the on-board computing power of Caterpillar’s system, the performance of these trucks only tends to be as good as the communications infrastructure they are tied to.

Presently, only the Komatsu system has announced successful trials of using 4G Long Term Evolution (LTE) network technology as the communications system which commands the trucks, with the Caterpillar system presently reliant on wireless networking technology, “of which all current implementations rely upon (globally)”, Price said.

One of the issues with such technologies is the trucks stop driving, or operating, if they lose communications, with the trucks communicating, via this network, their position to each other and directional heading and speed.

The way the trucks re-start their driving routine is, at present, via manual visual inspection, which can be a process that takes time.

And, according to Price, a significant problematic issue with trucks stopping driving across all the Pilbara sites is the triggering of a false positive object detection.

“These are often referred to as ‘ODs’ on the various sites which utilise AHS,” Price said, with many operators blaming undulations in the road, pot holes, or small rocks for these occurrences.

Again, manual inspection is normally required as part of an operation’s procedure for re-starting the autonomous trucks.

Out in front

Despite these communication and OD problems, Western Australia still leads the way when it comes to automation with the Pilbara hosting around 75% of the circa-370 trucks operating globally.
What is the reason for this? Price highlighted five bullet points in his speech:

  • High cost of operators – annual salaries for truck operations are, in general, over A$100,000 ($68,882);
  • Ease of implementation – “the Pilbara miners generally have open ground, and have had an opportunity to trial the technology in a dedicated work area prior to a site-wide implementation,” Price said, adding that the topography has also made it simpler to install the required communications systems;
  • Scale and longevity of operations – Previously cost-benefit analysis of AHS included an approximate cutoff point of 12 Mt/y total material movement, which equates to six to eight off-highway haul trucks, Price said. All operations exceed this, as well as having long mine lives;
  • The fact that all the sites which have presently deployed AHS are currently fly-in/fly-out mines which transport the staff to site from their point-of-hire, and;
  • Experience of technology and processes in the Pilbara – miners in the region have long-term familiarity with fleet management systems and technology adoption.

Price said: “Western Australia does not necessarily have any unique or special advantage, however, it has made sense for Pilbara iron ore operators to implement AHS for the reasons outlined above.”

The benefits

MTGA’s Price pointed to several quotes from the mining companies themselves to explain the benefits of automation.

Rio Tinto, in 2018, said: “On average, each autonomous truck was estimated to have operated about 700 hours more than conventional haul trucks during 2017 and around 15% lower load and haul unit costs.”

FMG, in the same year, said it was seeing 32% productivity improvements with autonomous trucking.

Vale, meanwhile, previously told Mining.com: “The adoption of autonomous trucks at Brucutu (iron ore mine, in Brazil) is expected to reduce fuel consumption by more than 10%. Maintenance costs, in turn, should fall by another 10% and off-road truck tyres, which cost up to $40,000, are expected to have 25% lower wear. The overall gains translate into a 15% increase in equipment life, reducing investments in new acquisitions and reducing carbon dioxide emissions at the same time.”

Price said: “There are clearly differing metrics being monitored by these three operators at present. However, irrespective of the metrics monitored, AHS obviously has had a significant impact on the operating environment.

“It appears that the increase in utilisation of the autonomous trucks is the most significant benefit that they provide. The decrease in costs is also helpful, but the increase in predictability of the truck fleet is what drives the actual benefit.

“A number of materially measurable but difficult to quantify benefits exist from the rendering of trucks autonomous as well. These include less maintenance, better tyre wear (or increased tyre life), reduced fuel costs (for the same tonnage output) and better overall truck performance.”

For instance, Komatsu has previously said the optimised automatic controls of AHS reduce sudden acceleration and abrupt steering, resulting in a 40% improvement in tyre life compared with conventional operations.

And, of course, there are the numerous safety benefits that come with using automated haul trucks.

The future

While Price believes that mining will continue to become more autonomous, he said the mine of the future was likely to involve the automatic distribution of data files that trucks would work off without human involvement.

“For now, technologies such as LTE for better communications network coverage, the use of drones, long-range cameras or other autonomous ground vehicles to conduct the manual visual inspection and other autonomous equipment will be implemented,” he said.

He added: “It is likely that there will be a continuum of development over the next 20-30 years.

“Mining companies and OEMs will have a lot to learn from automotive vehicle automation. Obviously, there are more cars on the roads than there are off-highway haulage trucks on minesites. Therefore the general costs of automation kits will come down, and there will be an opportunity to conduct operations in a GPS-denied environment.

“Already, the costs of select items such as the LiDAR utilised by the Caterpillar system have halved in price since they were used a decade ago. Solid state LiDARs, as opposed to rotational, are being implemented in the automotive industry already.”

He pointed to MINExpo 2016, in Las Vegas, when Komatsu showcased its cabless, driverless truck as one development to look out for.

“It is predicted that in the longer-term future (ie 20-30 years’ time), cabs will be an additional and expensive option to add onto an off-highway heavy haulage truck,” he said.

“Whilst the future is autonomous, it will be technologically more advanced than the present technologies,” he concluded, adding that, given its head start, one would expect the Pilbara iron ore industry to deploy these technologies first.

MTGA’s Richard Price has also written a business case study on AHS, published by AusIMM – www.ausimmbulletin.com/feature/autonomous-haulage-systems-the-business-case/ – and, in partnership with Whittle Consulting’s Nick Redwood, put together an Autonomous Haulage Systems Financial Model Assessment – www.whittleconsulting.com.au/wp-content/uploads/2017/10/Autonomous-Haulage-Study-Report-Rev-F.pdf

XCMG bolsters Mongolia offering with spare parts centre

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XCMG has opened its first spare parts centre in Ulaanbaatar, Mongolia, in an effort to provide “all-around support and services” for customers in the country.

The new centre will connect with the Xuzhou Headquarters, Erenhot Distribution Center and mining districts’ On-site Support Warehouses to create a complete “sale-support-repair” service, it said. This will provide “high-quality equipment, flawless support in operation and guarantees for equipment throughout the entire life cycle of XCMG’s products”, the company said.

XCMG’s Song said: “As Mongolia accelerates the construction of infrastructure over the next decade, XCMG will be on-hand to help develop the local market. With our new service centre and complete solution, there will be no limit to what we can build together.”

The company’s exports to Mongolia are increasing year by year, XCMG said, with the total number of machinery shipped to Mongolia up to July 2019 already exceeded the total for 2018, according to recent customs reports. “The dramatic increase underlines the position of XCMG’s large-tonnage mining excavators, loaders, graders and mining trucks as the top choice for operators in Mongolia,” XCMG said.

To meet the ever-growing demand for spare parts support and services, XCMG initiated the spare parts centre project with local dealer AODE in April. Some 20 million yuan ($2.9 million) was invested to construct the 2,000 sq.m site located in Ulaanbatar. This will significantly improve XCMG’s ability to provide spare parts services in Mongolia and its neighbouring region, as well as better sales services in Middle Asia, the company said.

Wang Min, Chairman and CEO of XCMG, said: “XCMG is committed to providing excellent products and service to all our customers, service is part of the product itself, and XCMG will invest heavily to create a global spare parts network and standard service procedures to win customers’ trust.”

Rio Tinto continues to invest in Pilbara haul truck automation

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Rio Tinto, in its half-year results, provided an update on its haul truck automation efforts at its iron ore mines in the Pilbara of Western Australia, saying it expects to hit some significant milestones by the end of 2019.

The company, one of the first adopters of autonomous haulage systems through a commercial trial at its West Angelas operation all the way back in 2008, said it had continued investing in productivity and automation in the first six months of 2019 and expected 50% of its iron ore truck fleet to be fully autonomous by the end of the year.

The company said: “Deployments are complete at seven of our sites, with Hope Downs 1 and Marandoo in transition.”

Last week, Fortescue Metals Group (FMG) said its plan to automate all haul trucks across its Pilbara iron ore network was going to plan, with 128 trucks running in autonomous mode as of the end of June.

Meanwhile, Rio said its AutoHaul project, which sees 2.4 km long trains travel across a network of 1,700 km of track, all monitored remotely from an operations centre in Perth, was now fully operational. These trains have safely travelled more than 4.5 million kilometres autonomously since they were first deployed last year.

Boliden Kevitsa takes delivery of first EU-Stage-V-compliant Komatsu haul truck

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Boliden has received the first haul trucks from Komatsu as part of its investment in a new truck fleet at its Kevitsa (Finland) and Aitik (Sweden) open-pit base metal operations.

The delivery marks the entry of Komatsu electric dump trucks into the European market, according to the miner.

For Kevitsa, 17 Komatsu 830E-5 haul trucks will be delivered until January of 2020, with nine Komatsu 930E-5 haul trucks being delivered to Aitik until April 2020.

The new trucks are the first EU Stage-V haul trucks within Boliden’s fleet, significantly reducing diesel exhaust emissions, the company said. They will also provide improvements in operator environment and safety, Boliden added.

The Komatsu 830E-5 haul trucks have a 220 t payload and will replace the current truck fleet at Kevitsa, reducing the mine’s production cost, Boliden said. To further increase efficiency and productivity, the trucks will be equipped with dispatch and maintenance systems from Modular Mining to enable optimised production and tracking as well as fleet maintenance support, the company said.

Boliden mentioned the purchase of trucks back in October during its September quarter results, saying it had reached agreement with Komatsu regarding an investment totalling some SEK 900 million ($96 million). At the time, the company said all of the trucks were equipped for future electrification; an important point considering the trolley assist trial ongoing at Aitik.

To mark the delivery milestone of the first truck, a handover ceremony was arranged in Kevitsa on July 10.

During the event, strategies and technical solutions were presented by executives such as Boliden President and CEO, Mikael Staffas, and Managing Director and CEO of Komatsu Europe, Masatoshi Morishita.

Mikael Staffas said: “This is an important step in the development of our open-pit mines while improving our environmental performance from an already strong position. This [is], not least, because we now create opportunities for increased electrification and related productivity development.”

Masatoshi Morishita says: “Today is a milestone for Komatsu Europe. With the delivery of first CE-certified Electric Dump Trucks to Boliden, Komatsu can offer a full line-up of mining products and solutions in Europe as well. We aim this will only be the start.”

MOD lays out plans for T3 copper-silver project in Botswana

Base metals, Mineral project development, Mining equipment, Mining services, Precious metals, , , , , ,

The feasibility study for MOD Resources’ majority-owned T3 copper-silver open-pit project in Botswana has delivered compelling mine economics, in addition to a fleet and flowsheet plan that will interest the major mining original equipment manufacturers.

T3, in the Kalahari Copper Belt, is expected to require $182 million in development capital and deliver a mine able to produce life of mine average production of 28,000 t/y of copper concentrate and 1.1 Moz/y of silver at all-in sustaining costs of $1.56/Ib after deducting silver credits.

The pre-tax net present value (8% discount) for the project came in at $368 million based on a long-term copper price of $3.08/Ib, or $6,791/t.

The current plan would see T3 produce first product in the March quarter of 2021, operating over an 11.5-year mine life.

In terms of the primary loading fleet, the company said this would be made up of a maximum of five hydraulic excavators in the 120-250 t class. This is considered the optimal option that could achieve the required productivity, maintain a degree of selectivity when required and minimise the number of units required for practical separation of loading and hauling units, according to the company.

The ore and waste haulage fleet is expected to consist of 140 t mechanical drive haul trucks capable of direct tipping to the primary crusher.

MOD said there is step change to a lower annualised total material movement (TMM) after year five of operations. A peak TMM of 39 Mt (annualised) is due to be maintained during the first four years of the schedule, requiring 24 trucks and five excavators to ensured continuous ore supply. TMM drops to 6 Mt/y after year six and is generally maintained for the remaining life of mine, it said.

“The mining schedule has been constrained by setting a maximum vertical advance rate of 120 m/y annum to allow sufficient time for dewatering, grade control, drill and blast and load and haul,” the company said, adding that the maximum vertical lag between benches is set at 50 m.

The production schedule achieves the target process plant throughput rates both during ramp-up and during steady state operations of 3.0 Mt/y to 3.2 Mt/y (peak), it said.

The copper recovery plant and associated service facilities will process run of mine (ROM) ore delivered to a single stage primary crusher. The crushed ore will be stockpiled from where it is fed to a two-stage grinding circuit using SAG and ball milling. Copper minerals in the ground ore will be concentrated in a conventional copper flotation circuit, made up of roughing, regrind and a single stage of cleaning. Concentrate from the cleaning stage will be thickened then filtered on site prior to transporting to Walvis Bay, in Namibia. From Walvis Bay, the concentrate will be shipped to third-party smelters.

Tailing from the roughing and cleaning stages will be pumped to the tailings storage facility located south of the proposed mine. The TSF is designed to store approximately 34.4 Mt of conventional thickened tailing – enough for the 11.5 years of the project life.

The process plant is forecast to produce a life of mine annual average copper in concentrate of 28,000 t, with average grades for Cu and Ag of 30.4% and 383g/t, respectively.

The key criteria selected for the plant design are:

  • The mill will process a total of 34.4 Mt of ROM ore for 11.5 years;
  • The annual ROM treatment is 3.0 Mt/y with a peak treatment rate of 3.2 Mt/y, at a primary grind size of 80% passing 180 μm;
  • Design availability of 91.5% with standby equipment in critical areas;
  • Design copper head grade of 1.3%. This head grade allows for grade variation from the life-of-mine average grade of 1.0% Cu;
  • Eighty-fifth percentile of comminution ore properties;
  • Ore specific gravity of 2.8 t/m³;
  • Laboratory rougher flotation residence of six minutes, and cleaner 1 and cleaner 1 scavenger residence time of two minutes and eight minutes, respectively, and;
  • Rougher concentrate mass recovery of 6.2% (w/w) for regrind circuit sizing and final concentrate mass recovery of 3.6% (w/w) for thickener and filter sizing.

Cat 797F haul truck proves its worth in Tier 4 Final configuration

Environmental, Equipment maintenance, Mining equipment, Mining maintenance, Mining services, , , , , , , ,

Cat says its 797F large mining truck is now available in a fuel-efficient configuration that meets US EPA Tier 4 Final emissions standards.

Through more than 16,000 hours of successful pilot machine operation and 100,000 hours of production truck operation in Tier 4 configuration, the system has proven its ability to deliver strong performance and greater fuel efficiency compared to the Tier 2 797F in most applications, the company said.

The 797F Tier 4 Final is equipped with an exhaust aftertreatment system featuring selective catalytic reduction, which uses diesel exhaust fluid (DEF) to lower NOx emissions. This Cat emissions platform is proven through more than 20 million operating hours in the field, according to the company.

The 797F aftertreatment system uses less than 11% new content, improving reliability, while the modular aftertreatment system, with readily accessible components designed for serviceability, is aligned with truck preventive maintenance intervals to maintain high availability, Cat said.

The best-selling truck in the 400-ton (363-t) size class, according to Cat, the 797F is powered by a 4,000-hp (2 983-kW) Cat® C175-20 engine, available with optimised fuel maps for customers focused on the lowest fuel burn, Tier 2 equivalent rating, and now Tier 4 Final. It is renowned for delivering class-leading payload and speed-on-grade performance, Cat said, adding that the 797F delivers the same production performance in Tier 2 and Tier 4 Final configurations.

“Beyond offering similar performance, the Tier 4 Final 797F reduces total specific fluid consumption costs (fuel plus DEF) in most applications,” Cat said. “Lower fuel burn results in longer engine life and lower repair costs.”

Field evaluations of the 797F included a wide range of applications in oil sands, deep pit copper, iron ore and coal mines. The trucks exceeded production targets and demonstrated strong engine performance in all applications, including sites with extreme ambient temperatures as well as some with altitudes greater than 16,000 ft (4,877 m), according to Cat.

Transense iTrack II mining tyre monitoring system coming to Nordgold’s Bissa

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Transense Technologies’ Translogik division has won a contract, through its Ghana partner WATS (West African Tyre Services), to supply 41 iTrack II mining tyre monitoring systems for haul trucks at Nordgold’s Bissa mine in Burkina Faso.

These systems are to be supplied on a rental and service basis via WATS, a wholly-owned subsidiary of Rana Motors & Metal Works Engineering Co. Transense said: “This method allows mining companies to benefit from the productivity gains and overhead savings provided by using the system without any of the associated capital cost while providing Translogik with a recurring revenue stream.”

The iTrack II system provides fast, accurate, reliable real-time data on the condition of the tyres, combined with live tracking of vehicle location and status, according to Transense. “The company’s 24/7 control room monitors the pressures and temperatures live, and this information can, for example, be used to ensure tyres do not exceed critical heat thresholds, detect incorrect load distributions, predict suspension failures, eliminate manual tyre pressure checks and much more.”

All of these benefits increase health and safety as well as reducing maintenance and downtime, which maximises the hours a truck is working (on-road truck working hours), which directly correlates to an increase in production, according to Transense. Existing iTrack users have reported increases in tyre life of up to 30% and fuel savings of up to 3%, the company said.

Vibi Chandra, Director, Sales & Services Director, OTR Tyres, WATS, said: “The considerable advantages that Nordgold have seen at their sister mine, SOMITA (Taparko), where we installed iTrack in May 2018, have persuaded Nordgold to adopt the system at Bissa.

“As we have previously stated, West Africa is a region with dozens of mines and hundreds of haul trucks and it is our intention to introduce our new enhanced service, including iTrack, to our existing portfolio of mines as well as other mines across the region.”

Graham Storey, CEO of Transense, said: “We are very pleased to have added another Nordgold-owned mine in West Africa to our growing list of iTrack users. WATS are a well-established and highly regarded tyre service provider in West Africa and with their depth of contacts we are hopeful of an accelerated rate of adoption moving forward.”

Bissa, which was launched in January 2013, produced 195,700 oz of gold in 2017.

Fortescue on the lookout for more automation and AI opportunities

Automation, Bulk handling, Mine operation news, Mining equipment, Mining services, Mining software, Steel and iron ore, , , , , , , , ,

In Fortescue Metals Group’s half-year report to end-December, the company provided an update on its haul truck automation retrofit project at its Chichester Hub iron ore operations, while commenting on the performance of its innovative relocatable conveyor.

For the six months to December 31, FMG shipped 82.7 Mt (84.5 Mt a year ago) of iron ore from its Pilbara operations, generated a net profit after tax of $644 million ($693 million a year ago) and posted underlying earnings before interest, taxes, depreciation and amortisation of $1.6 billion ($1.8 billion a year ago).

As of December 31, 2018, FMG said 44 trucks had been converted with autonomous haulage technology (AHS) at Chichester Hub as part of its automation rollout.

Once complete, the conversion of approximately 100 haul trucks at its Christmas Creek and Cloudbreak operations (which both make up the Chichester Hub) will see Fortescue become the first iron ore operation in the world to have a fully autonomous operating fleet, it said.

The company also provided some commentary around the relocatable conveyor it has been using to cut costs and improve productivity at its Cloudbreak mine.

The conveyor, commissioned in May 2018 by RCR Tomlinson, doubled its throughput in the September quarter, according to FMG.

Fortescue said: “The five-kilometre conveyor includes a mobile primary crushing station that feeds directly into the ore processing facility. The relocatable conveyor and mobile crushing facilities can be positioned in close proximity to pits and relocated once mining in that area is complete.”

FMG concluded on innovation: “The company continues to look for opportunities for automation and artificial intelligence to drive greater efficiency across the business, including the use of data to predict outcomes and optimise performance, the expansion of autonomous mining and the application of relocatable conveyor technology.”

Cat’s DGB dual-fuel technology cuts costs, emissions at La Herradura gold mine

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Caterpillar has been showing one of Mexico’s biggest gold mining operations that its Dynamic Gas Blending™ (DGB) technology can provide savings on fuel costs and emissions while maintaining the same performance, payload and productivity of its diesel haul trucks.

The mining OEM and its Mexico-based dealer, Matco Cat, have been working with Fresnillo’s Penmont division to convert its entire fleet of large mining trucks at the La Herradura open-pit mine, in Sonora.

Caterpillar’s dual-fuel DGB technology, which has accumulated 10 million hours in the oil and gas industry since 2013, works by blending lower cost liquefied natural gas (LNG) with diesel fuel, according to Cat.

The resultant improvements in fuel, emissions and maintenance can add up to millions of dollars each year in cost savings, Cat said.

La Herradura, since 2016, has acted as a great case study for the technology given it has more than 250 Cat trucks and the operation hauls at least 25 Mt of volume per quarter (based on Fresnillo’s most recent Q4 production results).

In addition, the company has been looking for ways to “produce (gold) in a sustainable manner”, Fresnillo’s Abel Villa said in a recent Cat customer story.

According to Steve Igoe, Commercial Manager for Caterpillar’s Gas Engine Business, the benefits of DGB technology include, primarily, a lower cost per tonne, realised through a lower fuel cost. “DGB truck operation with LNG has proven very beneficial to La Herradura, and this is why they have decided to convert their entire fleet,” he said.

“Typically, LNG is 30% lower than the price of diesel. And, on a typical fleet at a mine, that adds up to millions of dollars a year,” he said. “And the trucks maintain the ability to operate 100% on diesel.”

Cat estimates a fleet of 100 trucks spends approximately $60-70 million/y on diesel fuel. With 65% displacement to LNG using DGB, that fleet could save $13 million/y on fuel alone.

DGB can also bring about a 30% cut in emissions compared with diesel-only operation – another important saving for mining companies looking at sustainability.

Trials during 2016 and 2017 of the technology at a gold mine in Turkey and a phosphate mine in the US have proven these claims.

For instance, the Turkey gold mine has retrofitted DGB technology on Cat 150-ton (136-t) 785C haul trucks and, since installation, has reached an average 70% average fuel displacement in addition to an operating cost reduction of $30/h.

Fresnillo’s Villa said La Herradura had gone further than this in terms of displacement.

“Initially when we started the project, the substitution rate was 70:30. We evaluated the results and changed the substitution to 85:15,” he said. This is close to the peak substitution rate Cat typically recommends.

Villa continued: “We have an average reduction of 70% in diesel consumption. We also considerably reduced the amount of emissions. When we compare both diesel and gas, the operation is the same.”

Cat said it observed a less than 1% difference in speed, payload and gear shifting, plus a 30% reduction in fuel cost, during one customer’s 5,000-h DGB trial.

La Herradura has also seen no unexpected maintenance issues during the trials, according to Fresnillo’s Enrique Leal. This is in keeping with Cat’s focus on reliability and productivity, with the company saying it has tallied zero hours of unplanned downtime.

So far, La Herradura has retrofitted 31 of its 785C haul trucks and a significant number of 240-ton (218-t) 793D trucks with the DGB technology.

Fresnillo’s Villa said the operation also plans to partner with a third party to build an LNG plant near the mine to ensure a sustainable supply.

Cat backs autonomy with large mining truck line roll out

Automation, Base metals, Coal technology, Industrial minerals, IoT, Mining equipment, Mining services, Precious metals, Steel and iron ore, , ,

Caterpillar already has seven autonomous haul fleets running around the globe, with an eighth to come online next year at Fortescue Metal Group’s Cloudbreak iron ore mine.

Yet, the company is continuing to drive forward with its autonomous offering with plans to make its entire large mining truck class autonomy-ready.

Cat is currently running the 789D, 793F and 797F in autonomous mode with its Command for hauling module, part of its MineStar system. It has over 100 trucks in the field, which have hauled more than 600 Mt of material.

The company revealed on Thursday at its Tinaja Hills facility in Tucson, Arizona, that it has plans to roll out autonomy across the whole group of large mining trucks. This includes the newly-added electric drive 796 AC and 798 AC haul trucks.

This move shows the company’s intent when it comes to automating mine site haulage, providing various payload options across its large mining trucks.

It is also a reflection of how the benefits of autonomy are becoming apparent to Cat’s current and future customers, with Cat pointing out that mining operators are realising they can continue to reach production goals with smaller machines than previously used in manned operations.