Tag Archives: Optimine

De Beers taking major technology steppingstone at Venetia Underground

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Making the transition from an open pit mine that has been operating successfully for 30 years to an underground operation that could become one of the most mechanised and automated in the world is not something that happens overnight.

De Beers Group embarked on the $2.3 billion underground expansion of its Venetia asset in Limpopo Province in 2012, in a move that represented the biggest single investment in South Africa’s diamond mining industry in decades.

Underground production began at the mine back in June this year, at a point when construction completion was estimated at 70%.

The introduction of autonomous mining systems performing multiple mining processes to deliver up to 6 Mt/y of kimberlite ore – for circa-4 Mct/y of diamonds – is now beginning, with a ramp-up process occurring over the next four years, according to Moses Madondo, Managing Director of De Beers Group Managed Operations.

“The technologies we are implementing – some of which are under development themselves – will be gradually phased in,” he told IM. “Where appropriate, we will take advantage of ‘proven’ technologies first to ease the change management process, before advancing to less mature technologies thereafter.

“The process should see us start operating areas of the mine in autonomous capacity by 2027.”

De Beers has engaged Sandvik Mining and Rock Solutions for its automated production machines, with the OEM delivering a 34-strong fleet made up of LHDs, ADTs, twin-boom drill rigs, roof bolters, cable bolters and production long hole drills. A further 12 units will be delivered in the future. These iSeries machines include 17- and 21-t payload LH517i and LH621i LHDs, 51-t payload TH551i ADTs, DD422i face drills, DS412i roof bolters, DS422i cable bolters and DL422i production drills.

Employee in the cab of one of the fleet of Sandvik machines

The underground mine will use sublevel caving to extract material from its K01 and K02 orebodies. Initially the ore will be hauled to surface using a combination of underground and surface haul trucks. As the operation matures, the hauling systems will transition to an automated truck loop in combination with vertical shafts for steady-state production.

Sandvik is also providing its AutoMine® system for the remote operation of loaders and trucks and its OptiMine® system for machine health monitoring, task management and location tracking.

Automation will be applied through a phased approach, beginning with manual operation and close monitoring of performance through data analytics. Automation will then gradually be introduced with the necessary training and experience in the operation and support of these technologies.

Madondo explained: “Our current fleet is made up of manually operated machines, which are optimised with automated task management. This process still requires an on-board operator, although many functions are automated.

“The next step would be autonomous machines, operated and overseen from surface, with our training centres already set up to deliver that.”

A pilot project to prepare the production team for the use of remote loading at the drawpoints and autonomous tramming to the tip is in the process of being established, with trials set for later this year and into 2024.

With sublevel cave mining, there is a risk of mud rushes and water ingress at drawpoints and remote loading will allow material to be loaded without putting operators at risk.

This pilot project will have a single loader operating under AutoMine Lite in a dedicated area on 46 Level that is isolated from other areas of the mine, with the machine controlled locally from a mobile tele-remote station just outside the autonomous operating area (ie not from surface).

An integrated operations centre on surface has been constructed and is in the final stages of commissioning.

Moses Madondo, Managing Director of De Beers Group Managed Operations

This is but a fraction of the emerging technology the company plans to employ at the mine, as Madondo highlighted.

“Of course, we will be integrating more technologies into the mix – digital mobility, data analytics, a cave management system, collision prevention, personnel alert systems, equipment location and tracking, production management through digital platforms, centralised blasting systems and digital twins,” he said. “All of these projects have people working on them to deliver our project objectives.”

For Madondo, the business case for employing such high levels of mechanisation and automation has only strengthened in the 11 years since the first shovel was placed in the ground for the underground project.

“This is a challenge with deep underground mining projects – they take a long time to develop and, in that period, technology and economics change,” he said. “It is, however, clear that mechanised mining allows you to take on these advanced technologies as the years go by.

“The investments are not just for technology’s sake. The business case must be built on our ability to improve safety and keep our people away from harm; as well as to make us more efficient and beat inflation, ensuring the margins we promised investors are realised.”

On the former, the company has partnered with Booyco Electronics on rolling out the South Africa-based company’s Level 9 – as defined by the Mining Industry Occupational Safety and Health (MOSH) organisation of South Africa – Booyco Electronics CWS850 collision prevention system at the mine.

“All of our Sandvik equipment is Level 9-enabled and we’re busy on this rollout,” Madondo said. “We’re already employing Level 7 (a system that warns pedestrians of their proximity to trackless mobile machinery) for this equipment. It’s now just a matter of getting to that new advanced level efficiently and safely.”

The company is also employing the Mobilaris Mining Intelligence platform for personnel location and situational awareness to help locate individuals in case of an emergency and notify them of incidents should they occur.

On the productivity side, the company is employing a cave management system to prevent overdrawing, Madondo says, linking the sub level caving mine plan with on-board LHD diagnostics and bucket weighing for efficiency and safety.

Process controller overseeing processing operations within the Venetia Mine

On top of OptiMine and AutoMine from Sandvik, the company is looking to integrate Howden’s Ventsim™ CONTROL system for monitoring, control and optimisation of underground mine ventilation in a ventilation on demand (VoD) application.

“We will gradually introduce VoD and Ventsim CONTROL as it allows us to 1) optimise the use of air and ventilation; and 2) retain the right condition and hygiene levels in the areas of the active mine,” Madondo said.

In an automated mining scenario, Ventsim CONTROL could potentially start ventilating an area of the mine in line with the expected arrival of the autonomous equipment, optimising the process and environment, and, as a result, reducing energy use.

Reaching the pinnacle

Also part of that discussion is decarbonisation – an area the company has already made significant progress on with its move underground.

“Transitioning from surface to underground has reset the energy balance,” Madondo said. “This has seen the site become far less reliant on energy from fossil fuel sources, with the big trucks and loaders from the pit replaced with smaller underground equipment and more electrical infrastructure.

“We predict by that, by 2030, 85% of all energy consumed will be electrical and only 6% will be diesel. That is a significant shift from the open-pit operation where nearly 85% of all energy consumed was from diesel.”

The company’s broader electrification work is currently in the review stage, but Madondo did provide some insight into the focus areas.

“We are looking at battery LHDs and trucks; we will consider trolley assist hauling loops and tethered electrical loading in some of the areas too,” he said. “It is all part of a progressive shift that will be integrated with the sourcing of renewable power for the mine.”

De Beers itself has set targets to become carbon neutral across its operations by 2030, Venetia Underground included.

The first electrification project the company is likely to embark on is a battery-electric retrofit of one of its light duty vehicles, Madondo said, explaining that this technology is relatively mature and comes with less infrastructure requirements due to the ability to charge the machines on surface.

“Our wider electrification plans are being influenced by the maturity of the technology; it may be more beneficial to wait until the adoption rate and learnings increase before we commit,” he added.

Even with the planned integration of such advanced technology at Venetia Underground, Madondo says De Beers still has some way to go to achieve the FutureSmart Mining innovation-led approach to sustainable mining that its parent company, Anglo American, advocates for.

“The pinnacle of De Beers mining expertise will probably be realised when we get to rollout our Diamond FutureSmart Mining, which ultimately is a mine design that we can use to develop future mines that make mining safer, more efficient, more sustainable and with a smaller environmental footprint,” he said.

“Of course, Venetia is certainly a steppingstone to that, but we will hopefully apply the learnings from Venetia for Jwaneng Underground (in Botswana) in the not-too-distant future. That could represent a different, more technologically advanced proposition where all processes are setup to benefit from the latest innovations.”

He concluded: “This will ensure we help create a healthy environment, that we catalyse thriving communities, and that we build trust as a corporate leader. We are shaping a future that creates shared value for all our stakeholders.”

Sandvik’s 65-t payload battery-electric TH665B heading to Electra Mining Africa

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Sandvik Mining & Rock Solutions is to have a major presence at this year’s Electra Mining Africa exhibition, with its 385 sq.m indoor stand introducing the African mining market to the OEM’s 65-t payload battery-electric vehicle.

In addition to the appearance of the TH665B, virtual reality (VR) and simulator technology will be employed at the stand to give visitors a highly interactive experience, Sandvik says. Live demonstration of Sandvik’s Eclipse fire suppression system, which can be fitted to the company’s drill rigs, trucks and loaders, will also take place.

Natalie Santiero, Marketing Manager for southern Africa at Sandvik Mining & Rock Solutions, says: “The theme of our stand this year will be the ‘Future of Mining’ and will highlight the many ways in which Sandvik can assist customers to move into the world of the fourth Industrial Revolution (4IR). We will also demonstrate how our products can contribute to a sustainable, net-zero future. The mining industry is moving very rapidly along this path and we’re very much a part of the evolution.”

The BEV to be introduced, which will be the biggest piece of equipment on the stand, will be the 65-t payload TH665B. As the largest capacity battery-electric underground truck, this is the flagship of Sandvik’s fast-expanding fleet of BEVs. The machine is at an advanced stage of development with factory testing completed and full-scale trials on a gold mine in Australia (AngloGold Ashanti Australia’s Sunrise Dam mine).

“The truck we’ll be displaying and launching at Electra Mining Africa is, in fact, the machine that will be trialled in Australia,” Santiero says. “Its appearance at the show will represent its African debut. We see the TH665B as being a critical development, given the determination of many mines to move towards emission-free equipment. It is perfectly paired with our 18-t capacity battery-electric LH581B underground loader, which was officially launched last year. A South African gold mine (Gold Fields’ South Deep) has already ordered the LH518B, with delivery expected shortly.”

Sandvik Rock Processing will be showcasing the 800i series of connected cone crushers through a live demonstration of remotely connected units via the digital service SAM. The 800i series comes with Sandvik’s new generation Automation and Connectivity System, which continuously monitors and optimises crusher performance and controls the complete lubrication system, increasing uptime and reliability, the company says.

The My Sandvik portal customer portal, which will also feature on the stand, provides customers with access to information about their fleet, access bulletins and electronic manuals and allows them to request quotations and place orders anytime they need directly online, according to Santiero.

Training, of course, is a major challenge for many mines and Sandvik will have its Digital Driller™, a compact and flexible solution to safely train operators on the company’s drills, at the show. It allows operators to learn their trade with a realistic simulator which optimises the transition to the real machine, according to the company.

Also in the digital space, Sandvik’s AutoMine® VR training simulator will be demonstrated. “This delivers a realistic AutoMine experience for training,” Santiero says. “Visitors to the stand will be able to put on goggles and manipulate hand-held controls to experience and interact with a 3D virtual reality environment to master the complete process of the AutoMine system start-up procedure without the need for machine or production area allocations.”

Apps are an ever-present aspect of modern life and Sandvik’s Rotary Blasthole Drill Selector app will feature at the event. It provides users with a list of recommended drill rigs based upon basic site conditions and production requirement information.

“Newtrax, which has been part of the Sandvik family since 2019, will also have a presence on our stand,” Santiero says. “They will be showcasing the Collision Avoidance System and Operations Management under the OptiMine® banner.”

Santiero concluded: “There’s no question that the 4IR is with us, not just in mining but many other industries. Sandvik is at the forefront of this revolution and its ability to innovate will be demonstrated very strongly at the show. We’ve spent months planning our stand and we believe that it will prove very popular with visitors to the show.”

Electra Mining Africa is due to take place on September 5-9 in Johannesburg, South Africa.

Sandvik looks to an open, interoperable and automation-ready future

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To fully step into Industry 4.0 and realise the transformative power of solutions such as automation, artificial intelligence and advanced analytics requires a change in the way that mining data is handled and utilised from one system to the next, according to the Sandvik Rotary Drilling Division (part of Sandvik Mining & Rock Solutions).

Programs that are designed to fully integrate with those from other vendors will not only deliver efficiency and cost benefits today, but also help mining houses transition into powerhouses of the future, it says.

As mining organisations have adopted digital solutions over the past 30 years, each company, down to the individual mine, has selected solutions that fit their mining style, commodity, workforce and processes. Due to the shift of professionals from one organisation to another, the different processes used for each commodity, and the introduction of new technologies, commonalities between digital products differ from operation to operation.

While some OEMs see this variability as an opportunity to close off third-party access to data and push their own digital agenda, Sandvik Rotary Drilling Division sees the sharing of data, connectivity and technology access as the next logical step to moving the industry, as a whole, forward.

Demetre Harris, Product Manager for Automation & Technology, said: “While there is much talk about systems interoperability and the benefits it could deliver in mining, it’s still in the early stages. Most vendors are still reluctant to allow others direct access to their technologies and generated data.”

Many vendors claim to offer application programming interfaces (APIs) that allow their solutions to share data with third-party systems, however there are often links missing which prevent true integration or mean that assistance from the vendor is required, according to the company.

“There are no standard APIs,” Harris explained. “For a third party to integrate its solution with an OEM platform or vice versa, it must develop custom code. The only way that happens today is if a customer can persuade the vendor to do the work.”

Understandably, miners are wary of locking themselves out of future purchasing decisions because their equipment may not be able to communicate properly with other systems.

Challenges and opportunities

When systems are unable to share data automatically, operators must resort to manual data handling and reporting. This is slow and tedious for staff and open to inaccuracies. Systems may also report data in different ways.

For example, key performance indicators (KPIs) can be computed differently between drilling solutions. One system may refer to utilisation as the time that the drill is operational, whether drilling, tramming or leveling, while another may calculate utilisation as the time during which an operator is onboard the drill. The challenge lies in integrating that information and drawing timely insights from it.

If machines and systems cannot ‘talk’ to one another, then safety conflicts could also arise making it difficult to operate the machines in the same environment, the company said. From an automation perspective, the ability for OEM systems to communicate with third-party solutions allows teams to mine safer and reduces the need for change management.

“Without interoperability and data sharing, the case for efficiency drops severely,” Harris added. “Not all operations are at a point where they’re ready to connect their systems together. Some mines may not have the infrastructure yet, but it’s going to be increasingly important going forward.”

Interoperability can provide huge efficiency and productivity gains across the value chain. For example, data generated during drilling can be used to improve blast profiles and optimise burden and hole spacing, which lowers explosive costs. Better blasting also improves fragmentation which lowers energy consumption downstream in crushing and grinding.

The blast arc can be positively affected when leveraging data, according to Sandvik

 

“Each department has its own performance targets and goals,” Harris explained. “If we can better integrate the programs that each team uses, then those processes can be optimised, and efficiencies realised across the entire operation.

“The more freely data can flow from one process to the next, the better prepared each department can be to handle changes originating from the orebody.”

Open data, open mind

True interoperability requires more than just data sharing. If systems are to be fully integrated, then the companies developing them must make interoperability a pillar of their designs and processes, according to the Sandvik Rotary Drilling Division.

Sandvik firmly believes that interoperability and data sharing are key to future efficiencies in mining, and the company is open to working with any third party to provide access to its data-rich technologies.

“We offer several levels of integration,” Harris explained. “From the sharing of data from our iSeries drill rigs into third-party solutions installed onboard our rotary drills, to API integrations with office and cloud solutions. There are multiple ways to connect and access our data so that it can be fed to other mining processes, including planning, blasting and mineral extraction.

“Ultimately, we’re open to discussing all forms of integration and interoperability,” he added. “If we work together, it provides better value for the customer, for Sandvik and for the industry as a whole.”

Designed for today and tomorrow

An example of this value can be seen in Sandvik’s latest integrations: one mining organisation asked the company to allow its blast solutions provider access to Sandvik’s iSeries Rotary Drills measurement-while-drilling (MWD) data. Using that data, the provider was able to calculate the hardness of the ground and determine the correct quantity of explosives and the best blasting sequence to fragment the ground, minimising both waste and blast costs.

The visualisation of MWD data

“The solutions that we’re developing now are designed for future data sharing and interoperability,” Harris explained. “That’s the case with the newest version of OptiMine® for Surface which will be released later this year.

“Some of the data that’s provided through our APIs today may not be needed but, as new integrations and capabilities arise, systems may require it. We’re building our solutions in a way that makes them futureproof.”

Sibanye-Stillwater to roll out Newtrax OptiMine Collision Avoidance System at Stillwater mine

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Sibanye-Stillwater is to invest $17 million in OptiMine® Collision Avoidance System (CAS) technology to reduce accidents, injuries and fatalities at its Stillwater PGM underground mining operations in Montana, USA, Newtrax says.

Newtrax and Sibanye-Stillwater have been working together since 2017 on various digitalisation projects to improve safety and productivity at Stillwater.

OptiMine increases safety and optimises underground mining operations, which align with Sibanye-Stillwater’s CARES values of commitment to safety, accountability, respect and sustainability, Newtrax says. These values support safe operations, allow growth, underpin business strategy and promote competitiveness and success.

This year marks the beginning of a new chapter with the mine-wide implementation of the new OptiMine Collision Avoidance System that links intelligent cap lamps to a warning system inside the cab of underground mobile equipment.

The system provides the vehicle operator with a virtual view of any pedestrians in the immediate area of the machine, along with an escalating warning system for both as the distance between them narrows.

This escalation transitions from a warning to vehicle intervention, where the vehicle automatically reduces speed and comes to a controlled stop should the system recognise the presence of any pedestrian wearing an intelligent cap lamp in the high-risk zone.

The same technology is also designed to improve the safety of vehicle-to-vehicle as well as vehicle-to-locomotive interactions and will be used as the digitalisation platform for real-time operations management, Newtrax, which is owned by Sandvik, said.

Jacques van Rensburg, Vice President and Group Head of Engineering, Sibanye-Stillwater, said: “Newtrax provides us with a safe, proactive and integrable solution to our operational needs. The OptiMine system integrates all the telemetry, tracking and proximity detection technology we need to run our operations safely, transparently and efficiently. And they are humble enough to leverage the global experience we’ve had with other collision avoidance systems globally, to make their system even better.”

Jean-Phillip Bouchard, Vice President – Americas, Newtrax, said: “Sibanye-Stillwater is a key customer for Newtrax. We are pleased to expand their current system and take on the challenge of developing and delivering OEM-agnostic intervention controllers to enable slow-to-stop control of all their equipment.”

Last year, Sandvik Mining and Rock Solutions, together with Newtrax, introduced what it said was the next generation of the OptiMine solution, which combines the Newtrax digitalisation offering with the existing Sandvik suite of digital process optimisation tools as one integrated OptiMine product.

Sandvik bolsters Toro underground loader range with the Toro LH307

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Sandvik has added a new loader to its rapidly expanding Toro™ family, with the Toro LH307.

In addition to featuring a multitude of design updates and new options to both hardware and software, the Toro LH307 loader also carries more tonnes than its predecessor, the 6.7 t Sandvik LH307, with the new model’s payload capacity increased to 7 t when equipped with the standard 3 cu.m bare lip bucket.

Among the new options designed to improve productivity are, for example, the Sandvik integrated weighing system IWS and traction control, both already available for the larger Sandvik loaders. The integrated weighing system measures the payload when lifting the boom, as well as the number of buckets filled during a shift, and records the results to My Sandvik Digital Services Knowledge Box™. Payload monitoring assists in maximising productivity by optimising loads, reducing overloading and helping to identify training needs. The traction control system reduces wheel slippage when penetrating to the muck pile and filling the bucket, extending tire lifetime and decreasing rubber waste.

As part of upgrading the 7 t loader, specific attention has been applied to digitalisation readiness. The loader has benefitted from control system upgrades, including 7 in touch screen colour display for the operator as standard.

The loader has been designed for use with AutoMine®, Sandvik’s advanced mining automation system for increased safety, productivity and reduced cost. AutoMine integration can be achieved by ordering an optional on-board package for the new loader for immediate autonomous use, or by selecting the automation-readiness option, allowing easy retrofitting of AutoMine later in the loader’s lifetime. Sandvik OptiMine®, also available as an option, delivers descriptive and predictive insights to improve operations and data analytics.

To serve varying customer and country specific needs, two 160 kW engine alternatives are available, both from Volvo Penta. The standard engine is an 8-litre EU Stage III A, capable of operating on diesel fuels with up to 3,000 parts per million sulphur content, whereas the optional EU Stage IV requires ultra-low sulphur diesel fuel.

The Stage III A engine also has an optional passive diesel particulate filter exhaust reduction system. To reduce emissions and consumption of fossil fuel, both engines can also use paraffinic fuel, thereby meeting EN 15940 requirements.

Sandvik merges automation, cable electrification and battery tech with Toro LH514BE

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Sandvik Mining and Rock Solutions has merged three of its established technologies into one loader with the Toro™ LH514BE. This loader is an AutoMine® compatible cable-electric loader, boosted with battery technology.

The Toro LH514BE, which IM first talked about in 2020, looks like a traditional electric loader while in operation, with a trailing cable connected to the mine electric grid, but the technology is not “ordinary”, Sandvik says.

“When this loader needs to be moved to another area or to the maintenance bay, the difference is clearly visible: the power cable is disconnected from the electric grid,” the company explains. “While the operator drives the loader to the new location, Toro LH514BE gets its power solely from its battery. This battery-assist enables easy relocating and suitability for ramp drive.”

One of the noteworthy features of the new loader is the elimination of refuelling or recharging stops. There is no diesel engine that would require fuelling, and the battery does not need to be swapped because it is recharging during operation.

The loader produces no exhaust emissions and significantly less heat than conventional equipment based on combustion, supporting mines in improving sustainability by reducing CO2 emissions, Sandvik says. As a battery chemistry, the Toro LH514BE uses lithium-iron phosphate chemistry, which, the company says, is a fit-for-purpose choice for underground mining environments.

The Toro LH514BE is available with Sandvik’s automation system AutoMine, which allows a fleet of equipment to be converted into an autonomous production system, providing significant safety and productivity improvements for mine operations. The Toro LH514BE can be delivered with AutoMine, or the system can be easily retrofitted later during the loader’s lifetime.

As standard, the loader features Sandvik’s intelligent control system and a 7-in touchscreen display, providing easy access to data. General battery health and status monitoring data, as well as battery charge information, is also available on the control system diagnostics. As usual in Sandvik’s large loaders, the integrated weighing system option measures payload data and records the results to My Sandvik Digital Services Knowledge Box™. The Knowledge Box transfers the data to the My Sandvik internet portal for visualisation of fleet health, productivity and utilisation. The OptiMine® solution can also use transferred data for improving mining process efficiency.

Sandvik celebrates 50 years of the Toro load and haul heritage

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Sandvik is celebrating the 50th birthday of its renowned Toro™ family of loaders and trucks for underground hard-rock mines.

This name has been recognised for decades, with the bull figure and the word Toro symbolising both a rich history and a promising future, Sandvik says.

The history of the bull at Sandvik dates to September 3, 1971, when the first Toro loader started its engine in Tampere, Finland. It was a Toro 100DH loader with a “massive” (at the time) 1.5-t carry capacity. Later on, the design and production facilities moved to Turku, which became the home base of the Toro family.

In 2020, after 15 years of dormancy, Sandvik reintroduced this old family name again.

“Today, the Toro family is characterised by design principles of safety, strength and intelligence,” Sandvik says.

“Safety is everything for those who work underground with heavy equipment, and it is the number one driver in the product design.

“In addition to safety of operators and maintenance personnel, the design needs to be sound from a sustainability perspective. Strength and power are at the very heart of the old Toro heritage and robust design, reliability and performance in the most demanding conditions are also the foundations for the current offering.

“The third element, being smart, evolves quickly. Sophisticated digital systems such as Sandvik’s AutoMine® and OptiMine® offerings are fine examples of intelligence, but smart solutions are needed all over the equipment, including operator ergonomics, easy maintenance access and component layouts.”

On August 31, Sandvik introduced a new i-series 15 t loader, the Toro™ LH515i, which was launched in Canada.

The Toro family includes loaders and trucks in all size classes and for all market areas. The key technologies are diesel-powered loaders and trucks, cable-electric loaders, and, as a newcomer, a battery-assisted loader that, according to Sandvik, is making an entry on the marketplace very soon.

Sandvik bolsters Toro LHD line up with LH515i

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Sandvik Mining and Rock Solutions says it is launching a new, higher-capacity 15-t size class loader as a next generation model for the current 14-t Sandvik LH514.

The 15-t Toro™ LH515i has one tonne greater capacity than its predecessor, yet it is designed to operate within the same footprint. This new member of the Toro family has been redesigned from the ground up, leveraging all of the benefits of its predecessor, while improving the design based on customer feedback, according to the company.

The new loader has been designed following the principles of intelligence and simplicity, Sandvik says. The Toro LH515i features a totally new Sandvik intelligent control system with 12-in touchscreen colour display, making loader health monitoring easy, providing quick access to data and enabling new solutions for efficient troubleshooting, the company says.

“With a multitude of smart technologies and optimised for use with Sandvik’s AutoMine® and OptiMine® systems, Toro LH515i brings digitalisation to the operator’s fingertips, enabling optimal productivity,” Sandvik says. “To ensure quick and efficient maintenance, the loader features easy access to service points, roomy component layout organised to facilitate servicing and excellent access to systems, both in the cabin and on top of the equipment.”

The loader features an entirely new cabin designed to provide an ergonomic working environment for operators during long shifts, including increased leg space, new seat and dashboard and improved visibility over the extremely flat rear frame of the loader.

The Toro LH515i is available with two different engine configurations from Volvo Penta: the 265 kW Stage V diesel engine, and the 256 kW Tier III engine.

Equipped with selective catalytic reduction exhaust gas technology and a new diesel particulate filter, the Stage V configuration meets very stringent emission regulations. To further help to reduce their greenhouse gas footprint, both versions of engines are fully compatible with paraffinic diesel fuels meeting the EN 15940 standard, Sandvik says.

The launch of the new loader is part of Sandvik celebrating the 50-year journey of Toro loaders and trucks.

Sandvik Technology Centre starts to unlock mine site productivity in southern Africa

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Sandvik Mining and Rock Solutions’ newly launched technology centre in Harare, Zimbabwe, is, the company says, assisting the region’s mining industry on a journey into the digital future.

The Sandvik Technology Centre has already begun working with technology-focused customers in underground hard-rock mines locally to raise the productivity bar. According to Sandvik Technology Centre Manager, Hosea Molife, the facility’s key aim is to use digital technology to make mines safer and more productive.

“Our starting point was an OptiMine implementation for the monitoring and tracking of underground mobile equipment and customer support for a MySandvik project,” Molife says.

He explains that hardware is installed on the equipment, together with the software, to gather and transmit operational data, allowing mine management to view equipment location and productivity at any time. The data is automatically analysed giving the customer decision-making dashboards.

Ian Bagshaw, Sandvik Mining and Rock Solutions Territory Manager, says the technologies employed by the company essentially ‘take the lid off’ the mine, revealing vital real-time information such as tonnes mined and holes drilled. The technology centre can make use of various Sandvik solutions to render the data useful to the customer. These include MySandvik for equipment monitoring using up-to-date information, OptiMine for integrating resources and optimising processes and AutoMine for automating mining activities.

Bagshaw highlighted that the Sandvik Technology Centre has been welcomed by technology-focused customers in the region.

“These customers are certainly leading the way globally in the platinum mining sector,” he says. “There is a strong safety element in the digital journey, as machine automation can help keep operators away from the workface and other potentially hazardous areas of the mine.”

There are already three projects underway at the technology centre, according to Molife. The MySandvik solution is being provided to 100 machines on one site, while OptiMine is being installed on a 76-unit fleet and AutoMine is initially being used to create a trucking loop for a single unit pilot project.

“The beauty of our facility is that it can be quickly ramped up as demand grows, allowing us to serve a growing customer base as mines see the practical value of applying digital technology,” Bagshaw says. There has been considerable interest expressed by the region’s mines to date, with potential projects for the technology Centre emerging in South Africa, Botswana and possibly further afield.

According to Bagshaw, applying Sandvik’s digital solutions is the beginning of a journey for mines, as they move away from paper-based and static data platforms.

“In addition to installing the hardware and software to generate real-time data for mines, we also work closely with customers on how best to utilise the reports,” he says. “Building these reports into their daily operations and real-time decision making will bring the productivity value add.”

Sandvik expands battery-electric drill range with new top hammer DL422iE

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Sandvik is continuing to grow its battery-electric equipment offering, launching its fully automated and electric driveline-equipped DL422iE top hammer longhole drill.

The driveline system on the new rig eliminates diesel emissions while tramming, increasing productivity while reducing environmental impact and fostering a healthier work environment, the company says.

Back in October after Sandvik’s Innovation in Mining virtual event, the company confirmed to IM that it was testing a battery-equipped prototype DL422iE unit in Canada ahead of a planned launch in the March quarter of 2021.

The zero-emission Sandvik DL422iE joins the Sandvik DD422iE as the company’s second battery-driven underground drill, with the company expecting to offer a full range of battery-tramming rigs covering all underground drilling applications by the end of 2021.

The new Sandvik DL422iE is designed for underground mass mining in 4 x 4 m or larger production drifts. It features the latest intelligent technology to enable continuous and unmanned operation, with automation and teleremote for drilling during shift changes and breaks, Sandvik says. Through these and other features, combined with data collection and transfer through wireless networks, the Sandvik DL422iE helps to ensure improved equipment utilisation and productivity.

The new longhole drill is capable of drilling vertical and inclined fans and single or parallel Ø89-127 mm long holes up to 54 m in depth using ST58 and ST68 tube rods. It is equipped with the powerful 33 kW HF1560ST longhole rock drill, which is based on a proven concept in terms of drilling capacity, reliability and operating cost, the company said.

With an impact frequency of 40-45 Hz and optimised percussion dynamics for ST68 tubes, the Sandvik DL422iE delivers optimal bit-to-rock contact for improved energy transfer, according to Sandvik. This leads to decreased stress level in rock tools, lower coupling/front housing temperatures and extended service life for shank adaptor and tube.

As standard, the Sandvik DL422iE is equipped with Sandvik’s Platinum drilling automation package for continuous and automated production drilling. This is combined with the i-Class iSOLO drilling control system to maximise productivity and enhance accuracy in drilling fans and parallel long holes. “It acts as a full-time stinger control and is used in uploading drill plans to the control system, with drill plan management direct at the user interface to ensure one-hole automation drilling to a predefined depth,” Sandvik says. “Furthermore, feed and boom positioning to the next hole are automatic, while data is transferred via WLAN ethernet connection.”

In addition to the standard Platinum package, the Sandvik DL422iE can be equipped with an optional automatic bit changer, enabling autonomous drilling of complete fans and working through shift changes.

On top of being equipped with MySandvik remote monitoring, units can also be integrated with AutoMine® and OptiMine®, providing multi-unit control and fan-to-fan remote tramming, Sandvik says.

“As the industry’s focus on sustainability increases, Sandvik’s latest drilling solutions specifically address the challenge of providing enhanced operational drilling performance combined with reduced emissions,” the company explained.

The Sandvik DL422iE is mounted on a C400E 4-wheel drive frame steered carrier equipped with an electric driveline system (battery package and electric motor) for zero diesel emissions and reduced operating costs. The batteries can be charged during drilling in a newly patented feature, while electric power can be drawn from the electrical supply system from the mine’s network.

“[The] Sandvik DL422iE helps mines reduce overall emissions and ventilation and fuel costs, and to create a healthier working environment,” Sandvik says. “Thanks to shorter cycle times and increased drilling capacity, [the] Sandvik DL422iE has the potential to help mines increase drilled meters per shift by up to 10%. Productivity can increase by up to 20% via improved equipment utilisation.”

The longhole drill is equipped with the ZR35 telescopic boom and horseshoe type boom support with telescopic jacks for maximum drilling stability, the most effective foundation for accurate longhole drilling in mass mining, according to Sandvik. The wide 3,000 mm total boom offset and 620 mm telescopic extension allows a pivot line height of 2,100 mm, which is typical for a wide range of mining methods.

The 360º feed roll-over, large boom tilt and swing angles ensure fan drilling versatility in 4 x 4 m or larger cross sections and, to ensure maximum accuracy in alignment, the boom is instrumented with electronic parallelism. An optional extended boom support allows for up to +/-45° feed tilt in drilling fans or long holes, which, Sandvik says, increases versatility in downhole drilling in stopes at the end of the orebody, in drilling long holes in the ore/waste contact and in slot raise drilling.

Net penetration rates with air-mist flushing are up to 15% higher on the Sandvik DL422iE when compared with water flushing, according to the company. The drill rig can be equipped with a CT80 onboard screw compressor (8 cu.m/min at 7 bar), which ensures efficient flushing and high net penetration rates. The use of the on-board air supply, meanwhile, is a cost-efficient alternative to mine air infrastructure or portable units, the company says.