Wirtgen GmbH

  • Kleemann │ Three plant trains working deep in the jungle of Guyana

    The massive plants from Kleemann were transported along the Mazaruni River to two quarries in the deepest interior of Guyana. Here, three PRO plant trains from Kleemann process granite.

    In a jungle region that is extremely difficult to reach by water or air, machines have to work particularly efficiently and reliably. Three plant trains were therefore brought step-by-step to the Bartica region in Guyana. The difficult accessibility of the work site and the hard, highly abrasive granite pose particular challenges.

    Three classified final products are created with a single plant train. Photo: Wirtgen

    Powerful machines for hard conditions

    The three plant trains each consist of a powerful mobile jaw crusher MOBICAT MC 120 PRO, the mobile cone crusher MOBICONE 110 PRO and the classifying screen MOBISCREEN MSC 953 EVO. The plants process the rock into various grain sizes, which are primarily used for the expansion of infrastructure in Guyana.

    The granite loaded onto the jaw crusher has a size of 0 to 600 mm. The downstream cone crusher breaks the material into shape and feeds it to the screening plant, which then outputs three classified final products: 0-8 mm, 8-12 mm, 12-19 mm. Larger grain sizes (19-45 mm) are fed back into the cone crusher via the oversize grain returning system. This continuous recirculation ensures that the raw material is fully utilised and that the product quality is very good.

    Efficient and intelligent work process for high product quality

    One advantage of these plant trains is the intelligent linkage of the machines. Each machine works independently and, in the event of malfunctions or overfilling, sends signals to the upstream and downstream machines. This automatic control enables a trouble-free process. The Continuous Feed System (CFS) ensures that each machine is loaded in a manner that reduces wear and maximises the output. “The automatic control system ensures that all nine machines are evenly utilised. We basically have no unwanted machine downtime”, reports Brian Tiwarie, Managing Director of the BK Group. “Furthermore, the quality of the final product is of decisive importance to us and the Kleemann plants allow use to achieve top quality.”

    Brian Tiwarie, Managing Director of the BK Group, is particularly satisfied with the high quality of the final product thanks to the Kleemann plants. Photo: Wirtgen

    Experience and reliability impress

    The BK Group decided three years ago to acquire the first plant train from Kleemann. Before making the decision, they spoke to other companies about their experiences and also visited the Kleemann plant in Göppingen. In the years that followed, further plant trains were installed with the aim of producing two million tons of aggregates per year.

    The company is very satisfied with the product quality and low fuel consumption. ”At this location, where everything really has to be transported by water in a time-consuming manner, high fuel requirements and the transportation of procured spare parts result in additional costs. With regard to these two aspects, we are very satisfied with the Kleemann plants”, says the Managing Director. Kleemann and the regional Wirtgen Group dealer Resansil provide support with reliable service despite the difficult accessibility.

    Facts and figures:

    Feed material:        Granite
    Feed size:              0 to 600 mm
    Final products:        0-8 mm, 8-12 mm, 12-19 mm
    Output:                  Up to 220 t/hour per plant train,
    total: approx. 5000 – 7000 t/day (10 hours a day)

    Further information:
    WIRTGEN GROUP
    www.wirtgen-group.com

  • The Wirtgen Group with a Trade Show Premiere at MINExpo 2024

    A New Cutting Drum Expands the Range of Applications for Surface Miners in Hard Rock and Stone

    Wirtgen Surface Miners and Cross Application Miners are deployed around the world in open-cast mining operations and on infrastructure projects. Cutting drums are the core element of the machines. At MINExpo 2024, from September 24 to 26, 2024 in the Las Vegas Convention Center, the highlights from the Wirtgen Group will include insights into its cutting technology solutions. The focal point on Booth 6815 at the show will be a new cutting drum that now also enables the cost-efficient extraction of resources with uniaxial compressive strengths of over 100 MPa UCS (14,500 psi).

    Limestone, Gypsum, Anhydrite, and Other Hard Rocks and Minerals

    The new cutting drum is equipped with HT14 toolholders and features a redesigned cutting geometry. The field-proven and established central-drum concept, which ensures optimum utilization of the machine weight, and the direct belt drive that guarantees the transfer of high usable power to the cutting drum, also contribute to the ability of Surface Miners to profitably extract even very hard rocks and minerals with uniaxial compressive strengths of 100 MPa UCS (14,500 psi) and more – for instance limestone, gypsum, or anhydrite.

    The Wirtgen 280 SM(i) with the New Cutting Drum in Action

    The new cutting drum celebrated its premiere in practice on a limestone quarrying job carried out by a Surface Miner 280 SM(i) in Louisville, Nebraska. In addition to the extraction of very hard limestone at the quarry, the elimination of the need for drilling and blasting made it possible to extract previously unexploitable limestone deposits and extend the working life of the quarry and all downstream production systems by several decades. For the quarry operator, surface mining is a cost-effective extraction solution that also contributes to safeguarding jobs, increases safety in the quarry, and enables responsible management of resources.

    Continuous direct loading of 70-ton mining dump trucks is no problem at all for the Wirtgen Surface Miner. Photo: Wirtgen Group

    Faster Infrastructure Projects

    Wirtgen expanded its portfolio of products and applications with the Cross-Application Miner 260 SX(i) two years ago. The Cross Application Miner speeds up construction times by eliminating the need for drilling and blasting, with the construction of stable embankments, in-situ grading of railroad tracks, and the recycling of the extracted material in-place for use in further construction.

    Wirtgen Group Services: Expertise and Best Practices Are Essential

    At MINExpo 2024, trade and industry visitors to the show will also be able to talk with surface mining experts from the Wirtgen Group about all other aspects of the solution – for example deployment and project assessment, recommended machines and equipment, related cost and performance estimation, and financing solutions.

    Further information:
    WIRTGEN GROUP
    www.wirtgen-group.com

  • Selective extraction as an alternative to drilling and blasting

    In a quarry in Louisville, Nebraska/USA, a Wirtgen Surface Miner 280 SM(i) is being used for the layer-by-layer and particularly environmentally friendly extraction of limestone from previously undeveloped reserves. Limestone for the production of cement has been quarried here in Louisville since 1929.

    The extraction of the material in the quarry was contracted out to North American Mining (NAM). The limestone reserves in the quarry in Louisville are by no means exhausted, even though it has now been in operation for almost 100 years. The geological situation, however, has made extraction a more difficult task, as the remaining limestone strata are interlayered with shale. Due to this, quarrying with conventional methods such as drilling and blasting would have led to contamination of the material. The Ash Grove Cement Company therefore decided to use a Wirtgen Surface Miner from NAM for the job. As the 280 SM(i) enables selective extraction of the primary resource, it can guarantee outstanding material purity and is the ideal choice for projects in areas with sensitive infrastructures.

    The 280 SM(i) cuts, crushes and loads the extracted material in one single pass. This means that processes such as pre-crushing, or conventional extraction processes such as drilling and blasting, are no longer necessary. This not only enables enormous savings in terms of costs, but also the extraction of materials in areas that are otherwise hard to access or prohibit the use of drilling and blasting due to the difficulty of obtaining appropriate permits.

    The use of Surface Miners opens up entirely new opportunities for the extraction of limestone in the quarry at Louisville. The extraction of the material takes place in a selective, layer-by-layer process. The valuable limestone resource is cleanly separated from waste materials such as shale before crushing with extremely high output and efficiency. Considering a compressive strength of 110 MPa for the limestone here, the 280 SMi achieves a mean cutting rate of approximately 400 t/h (Figure 1) – with 87.5 % of the material produced in the process being crushed into pieces smaller than the specified maximum size of 7.6 cm. In the waste rock (shale and overburden), the machine achieves a mean cutting rate of approximately 650 t/h. The cut and crushed material is loaded directly into 70 t dump trucks driving alongside the Surface Miner (Figure 2). The process is fast and continuous, with a fresh truck being filled with crushed limestone every 4 min – around the clock, five to six days a week.

    Fig. 2. Continuous direct loading of 70 t mining dump trucks with the ­Wirtgen Surface Miner. Photo: Wirtgen

    Due to the high compressive strength (extreme hardness) of limestone, the cutting tools used here are subjected to enormous stresses. The 280 SM(i) in use in Louisville is ideally prepared to take on this challenge and achieves maximum cutting rates with minimal pick wear. “The machine does a great job. I’m really impressed with the round-shank picks and the quick-change toolholder. They make it so easy to change worn picks that we can get back to work again after stopping for only a couple of minutes”, says David Ashby, machine operator from NAM, who has more to say about the machine: “One of the advantages of the movable counterweight and the 90° slewing angle of the discharge conveyor is that they let you work very close to the high quarry walls. Although the machine is very big, its simply fantastic manoeuvrability makes it very useful for working in tighter spots.”

    Apart from its efficiency, the machine also impresses with a range of environmentally friendly aspects: The number of extraction processes is reduced from four to one, while lower exhaust, noise and dust emissions not only make every day work on the site much easier, but also offer new opportunities for quarrying rock close to populated areas. “We can now extract limestone from deposits we could hardly have reached before”, explains Nic Haubruge, Business Development Manager at NAM. “In many cases, the use of drilling and blasting is simply no longer a viable option, however, with this machine we can develop new deposits with minimal dust emissions, minimal noise emissions, and no vibrations.”

    Further information:
    WIRTGEN GROUP
    www.wirtgen-group.com

  • German Design Award for the impact crusher Kleemann MOBIREX MR 130(i) PRO

    High functionality, performance and ergonomics

    The Kleemann machine impressed the jury of the German Design Award with its combination of environmentally friendly drive concept, exemplary functionality and user-friendliness in interaction with a striking design. The justification was as follows: “The modern impact crusher MOBIREX MR 130i PRO makes all-electric operation possible. At the same time, the design impressively reflects the requirements of functionality, performance and ergonomics”. The prestigious German Design Award is awarded every year by the German Design Council. Founded in 1953 on the initiative of the German Federal Parliament as a foundation, it supports the economy by creating brand added-value through design.

    Local emission-free operation possible

    The MOBIREX MR 130(i) PRO is the latest representative of the PRO line from Kleemann. The extremely powerful impact crusher is used as a primary and secondary crusher in soft to medium-hard natural stone and recycling. The machine also meets high environmental standards. Thanks to the diesel-electric drive E-DRIVE with the option of an external power supply, local emission-free operation is possible. A further positive feature of the machine is a high level of user-friendliness thanks to the intuitive digitised user guidance. A combination of smartphone, radio remote control or touch panel makes control from a distance possible. In spite of its size, the MR 130(i) PRO can be transported from site to site in an uncomplicated manner thanks to well-thought-out hydraulic folding functions.

    Further information:
    WIRTGEN GROUP
    www.wirtgen-group.com

  • Sustainable Drive Concepts for every Requirement

    Three solutions for environmentally friendly operation. An overview of concepts and application options

    Kleemann uses three different drive concepts that offer the best possible solution depending on the tasks at hand. Although electric drives score very well with regard to the CO2 footprint, in some situations a fuel-saving diesel drive is the better solution. E-DRIVE, D-DRIVE and H-DRIVE represent the variants diesel-electric, diesel-direct and diesel-hydraulic.

    The decision on the most efficient solution depends on many factors: For example, whether there is a power supply option available on site, whether the machines are used in an urban environment or which local environmental regulations apply.

    E-DRIVE – emission-free thanks to electric drive

    Plants in the PRO line, such as the MOBICAT MC 120(i) PRO, can be operated completely with electricity or, alternatively with a diesel engine. The crusher and all conveyor belts are then still driven electrically by a generator. Source: Kleemann

    The E-DRIVE concept offers two options: Diesel fuel or all-electric. All-electric operation is environmentally friendly: there are no CO2 emissions on site. A precondition for this is a good power infrastructure, which is often available in quarries or in larger recycling yards. In the power supply is insufficient or there isn’t one available, a diesel-electric work option is available. For example, if the complete plant in the quarry is to be moved along the rock face. Power is then supplied from a long cable, which is often too complex or may not even be possible. In this case, power comes from the fuel-efficient diesel engine. The crusher and all conveyor belts are then still driven electrically by a generator. Depending on the local situation, the E-DRIVE concept offers high flexibility.

    D-DRIVE – the direct and powerful solution

    Crusher directdrive D-DRIVE on the EVO2 crushing plants from Kleemann: The fluid coupling guarantees high operational safety – for operator and machine. All secondary drives, such as prescreen, chutes or conveyor belts, are driven electrically. Source: Kleemann

    The diesel-directdrive D-DRIVE provides power directly from the engine to the crusher. In the last few years, it was possible to reduce consumption, for example, through the load-dependent fan drive of the new EVO2 Generation. With regard to the degree of efficiency, the diesel-directdrive has the edge and fuel consumption is significantly lower. Thanks to their compact size and well thought-out transport options, the machines can be positioned in any place on the work site. If continuous use of the all-electric drive is not possible, the D-DRIVE is the better, more sustainable choice – whenever flexibility is required. This is the case with demolition and processing work in urban areas, but also in road construction where the machines have to be moved along as construction progresses.

    H-DRIVE – for mobile screening plants

    The Kleemann screening plants use an effective diesel-hydraulic drive. Furthermore, the configuration with Dual Power provides an option for an all-electric power supply. If a mains connection is available, the plant operates on site free of emissions. Source: Kleemann

    The screening plants from Kleemann use an effective diesel-hydraulic drive. In this case, hydraulic pumps operate all machine parts such as screen, belts and drive system. The power requirements of the screens are considerably lower than a crusher – fuel consumption during operation is therefore more favourable. The optionally available Start-Stop system can reduce consumption even more. With the configuration with Dual Power, Kleemann screening plants have an option for an all-electric power supply. If a mains connection is available, the plant operates on site free of emissions – for example, in ecologically sensitive areas with strict regulations.

    Summary: Ecological drive – a question of the overall concept

    In stationary recycling operations, the preconditions for the use of a Kleemann crushing plant with E-DRIVE are often very favourable. An adequate power supply is often available, occasionally even from an in-company photovoltaic system. Photo: Kleemann

    Many factors play a role in the area of sustainability. Energy required for production, transport, storage, sales and disposal are all incorporated in the ecological footprint of the production process. As far as CO2 emissions during operation are concerned, an all-electric plant is without doubt the best choice. In other cases, you have to weigh up whether supply via an external power source involving high equipment and material costs is more constructive at the end of the day than technology with lower fuel consumption. Ecology can also mean placing your trust in low material usage and high durability.

    Further information:
    WIRTGEN GROUP
    www.wirtgen-group.com

  • Configuration tool for quick, optimal machine settings

    Smart Job Configurator supports inexperienced and experienced users equally

    Different machines, different settings – so that users can find solutions quickly and easily, Kleemann now offers the Smart Job Configurator in the SPECTIVE operating concept. The configurator enables the optimal machine settings to be easily determined.

    Finding the ideal machine parameters takes time and requires experience. The applications for crushing plants are diverse and depending on the feed material and the desired end result the parameters vary. The Smart Job Configurator is part of the SPECTIVE CONNECT app and the SPECTIVE touch display and supports operators in the selection and entry of the correct settings. This ensures that the desired high-quality final product is reached with the lowest possible wear and fuel consumption.

    Simple handling thanks to intuitive user guidance

    The operator is guided step by step through the menu of the Smart Job Configurator of the SPECTIVE CONNECT app (Figure 1) and enters the necessary data of their planned application, such as details about the machine, material and its processing. A suitable final product is suggested as well as the tools required. When all parameters are entered, the tool creates an overview of the ideal machine configurations. The result of the calculations can be exported as a PDF and sent to other people, for example.

    On the SPECTIVE touch panel (Figure 2) the suggested settings can be applied quickly and simply via the Smart Job Configurator menu. The machine now works exactly with the applied setting and delivers the planned result.

    The Smart Job Configurator can also be used without SPECTIVE CONNECT as a “QuickStart” on the touch panel. The operator is guided step by step through the machine configuration, which accelerates the set-up. The operator receives the same setting options that are offered in the app.

    Fig. 2. On the SPECTIVE touch panel the Smart Job Configurator can be used as a “QuickStart” for simple set-up of the Kleemann machine. Photo: Wirtgen

    Different sample applications

    The Smart Job Configurator is fed with various application scenarios, which were created by the Kleemann application technology. More “recipes” are gradually being added. There operators find an ever-expanding range of various applications. The customers can also contact Kleemann directly if special applications are required.

    With this support for the machine setting employees with less experience also find the appropriate solution and experienced users benefit from time savings. The material processing is simple and efficient for all users.

    Further information:
    WIRTGEN GROUP
    www.wirtgen-group.com

  • Group of companies strengthens digital communication

    Magazine format: ‘The Road’ and ‘The Rock’ are becoming more individualised, faster, and more sustainable

    Sustainability is a key part of the Wirtgen Group’s foundational aims and is firmly embedded in all corporate processes. Innovative and sustainable solutions drive digitalisation not only in the road construction sector, but also in the evolution of the company’s own media communication. In ‘The Road’ and ‘The Rock’, the corporate group doesn’t just report on exciting machine operations of their construction equipment; they also provide a closer look at the world of the Wirtgen Group.

    The rapid development of communication media has changed user behaviour and the associated requirements. As part of its sustainability strategy, which has an impact on all areas of the Wirtgen Group, the company is also focusing on the digital transformation of its print media. All issues of the paperless magazines are now available 24/7 on the website to interested readers.

    Successful print media given a modern makeover

    In the past, FORUM and RoadNews covered the rapid development and transformation of the company. With FORUM, the magazine for customers, employees, and friends, readers were able to take a regular look behind the scenes and learn all the things they always wanted to know about the Wirtgen Group. The user magazine RoadNews was aimed at road construction professionals and fans, with a focus on spectacular job site reports, new machines, technical articles, interviews with users, and tips for routine operations. Both magazines have also undergone constant change themselves, a process which has led to their new digital format.

    Preparing digital content to suit the target group

    The Wirtgen Group is now bundling all of these topics into two digital magazines. This lets them work with a faster turnaround time, catering more quickly to individual information needs. ‘The Road’ is now dedicated to road construction and rehabilitation, with the solutions and technologies of Wirtgen, Vögele, Hamm, and Benninghoven.

    With ‘The Rock’, the company is now providing professionals in materials processing and extraction with their own dedicated magazine for the very first time. This was prompted by the readers’ wish for more reports on the relevant fields of application and on the solutions offered by Kleemann and Wirtgen.

    Two Magazines – One Platform

    ‘The Road’ and ‘The Rock’ are available on the company website at: THEROAD.wirtgen-group.com and THEROCK.wirtgen-group.com.

    Further information:
    WIRTGEN GmbH
    www.wirtgen.com

  • Kleemann | First Practical Application of the New Impact Crusher MOBIREX MR 130i PRO

    The new Kleemann impact crusher MOBIREX MR 130i PRO is in operation in a limestone quarry near Wuppertal. The latest family member of the PRO line offers effective screening and a high output.

    With its double-deck post screening unit, the MR 130i PRO guarantees effective screening and very high product quality with a single plant only – without additional screening plant. Photo: Wirtgen

    Combination plant proves its value in the limestone quarry
    The Kleemann impact crusher MOBIREX MR 130i PRO is used in the Oetelshofen quarry near Wuppertal to crush limestone for industrial blast furnaces. A combination plant in which the screening unit is connected directly to the crushing plant – this is what the operating company wanted. Whereas an impact crusher was previously operated with a separate screening plant, the MOBIREX MR 130i PRO now works with an integrated post screening unit and oversize grain returning. Among other things, this reduces the fuel consumption. Instead of supplying a crushing and screening plant, now only one machine, which also has low consumption values, has to be refueled. The new machine achieves a final product of 0/45 with a feed size of 0/600. The double-deck post screening unit discharges a final grain size, whereby both screen decks are fully utilised. A size 50 square mesh is installed in the lower deck for this purpose; a larger mesh is installed in the upper deck as a relief deck. The oversize grain of the upper deck as well as the lower deck is directed in an uncomplicated process via a reversible transfer conveyor onto the oversize grain conveyor and is then returned to the crushing process.

    A new development perfectly suited to the task
    The initial challenge was to find a solution that meets all the requirements: “The customer had considered different suppliers and options”, explains Christoph Obalski, Sales Wirtgen Germany. “Luckily, with the new MR 130i PRO from Kleemann, we have a completely new machine that is exactly suited to the project,” says the Kleemann special consultant. The MOBIREX MR 130i PRO has a high output and effective screening.

    Hand-over of the MOBIREX MR 130i PRO in the Kleemann plant in Göppingen: Christoph Obalski, Sales Wirtgen Germany (left) with Dirk Frorath, managing director of the operating company AMIRO GmbH in the Oetelshofen quarry (right). Photo: Wirtgen

    “The large running gear with heavy-duty framing, ease of physical and visual access via steps and platforms to all components and the solid double-deck post screening unit – this made a perfect first impression,” explains Dirk Frorath, managing director of AMIRO GmbH in the quarry.” The crushing unit of the plant is driven by a powerful electric motor. It also has a new drive concept. A star-delta drive and frequency converter, which makes it possible to vary the speed of the rotor as required, is available as an option. Thanks to its all-electric drive concept E-DRIVE, there is an option for an external power supply which means that the machine can be operated locally free of emissions.

    Standardised operation thanks to the SPECTIVE operating concept
    The MOBIREX MR 130i PRO is also equipped with the operating concept SPECTIVE, with which operators in quarries are already familiar from the other MOBIREX MR 130 EVO2 plants. The operating concept is intuitive and has a consistent structure across the MOBIREX series. The components of the latest SPECTIVE generation, such as the new radio remote controls and the digital solution SPECTIVE CONNECT, simplify the everyday work routine even more.

    Many years of good co-operation tipped the scales
    In this case, prior to purchasing it was not possible to view the machine in operation in advance, for example, in another company. The impact crusher is, after all, a new development. Thanks to co-operation Kleemann lasting many years and good experience with the company’s products, however, a very solid foundation of trust existed. And of course it was possible to view the machine in the Kleemann plant in Göppingen.

    Further information:
    WIRTGEN GROUP
    www.wirtgen-group.com

  • bauma 2022: Kleemann presents a world premiere and sustainable solutions for the quarry and recycling

    At this year’s bauma, Kleemann presents innovations from its comprehensive product portfolio with a total of nine mobile crushing and screening plants and its operating concept SPECTIVE. A world premiere is celebrated by the new impact crusher MOBIREX MR 130(i) PRO.


    World premiere for new PRO line plant

    With the impact crusher MOBIREX MR 130(i) PRO, Kleemann presents a new family member from the PRO line. The plant is used as a primary and secondary crusher and combines output, precision and sustainability.

    Thanks to its all-electric drive concept with the option of an external power supply and therefore CO2-free operation, the plant guarantees low energy consumption per ton of final product. The optional large double-deck secondary screening unit permits the production of two classified final grain sizes. The MR 130(i) PRO covers a very wide application range in natural stone and recycling. With its heavy rotor and powerful electric 250 kW drive, the crushing unit guarantees a very high and stable throughput. A continuous crusher load is guaranteed by the Continuous Feed System (CFS).


    Operating concept SPECTIVE with new functions

    The components of the Kleemann operating concept SPECTIVE are perfectly tuned to one another. Photo: Wirtgen

    The innovative operating concept SPECTIVE includes various components that are ideally tuned to one another and accompany the machine operator during the entire working day. Apart from the intuitive touch panel and different radio remote controls, the digital application SPECTIVE CONNECT, above all, supports the work site digitalisation. All relevant process information and reporting are now displayed on your smartphone without having to leave the feeding device. SPECTIVE CONNECT has new features, which will be presented at Bauma and which make work for the operator even easier. A new configuration tool, for example, supports the operator in the selection of the correct machine settings.


    Kleemann screening program extended

    The Kleemann MSS 802(i) EVO impresses as a new screen for coarse elements in natural stone and recycling. Photo: Wirtgen

    The new MOBISCREEN MSS 802(i) EVO has been designed as a powerful mobile screen for coarse elements for changing challenges in different applications. With its clever plant design and flexible conversion options, it guarantees an optimum material flow in natural stone and recycling applications. The large range of screen surfaces and simple setting of screen parameters make it possible to adapt the MSS 802(i) EVO easily to new application conditions. If a fine final product is to be screened from particularly coarse feed material, the plant can be quickly converted from three to two final grain sizes. Further advantages of the plant include its simple operability thanks to its intuitive control system, easy access to all relevant machine components and its drive concept with the option of an external power supply for emission-free and therefore environmentally sound work.


    EVO2 line for flexible application possibilities

    High performance individually or as a team: the cone crusher MOBICONE MCO 90(i) EVO2 and the jaw crusher MOBICAT MC 110(i) EVO2 from Kleemann. Photo: Wirtgen

    The plants in the EVO2 generation demonstrate that output, efficiency and flexibility belong together. The latest members of the product line – the jaw crusher MOBICAT MC 110(i) EVO2 and the cone crusher MOBICONE MCO 90(i) EVO2 – will be presented together to the public at Bauma with line coupling. Both plants have an efficient drive concept and intelligent overload systems. Operation is simple thanks to SPECTIVE and SPECTIVE CONNECT.

    The EVO2 line also includes the mobile impact crushers MOBIREX MR EVO2.  The plants impress with flexible application options in natural stone and recycling. The SPECTIVE operating concept ensures simple, intuitive control. The new feature here is that SPECTIVE CONNECT is now also available.

    Further information:
    WIRTGEN GROUP
    www.wirtgen-group.com

  • World premiere of the new 280 SM(i) surface miner

    With the new 280 SM(i) surface miner, the WIRTGEN GROUP, Windhagen/Germany, has developed another efficient and practice-oriented solution for the extraction of primary resources. Its innovative technologies enable high machine utilisation rates and maximum productivity.

    The 280 SM(i) is a high-performance surface miner designed for the reliable and selective extraction of primary resources by direct loading, sidecasting or cut-to-ground. Raw materials are extracted and crushed in situ in purest quality in a single operation – without drilling and blasting and with minimal environmental impact (Figure 1). The 280 SM(i) is driven by four steerable and height-adjustable crawler units. The machine is highly manoeuvrable and can be quickly turned at the end of a cut. The LEVEL PRO ACTIVE automatic levelling system maintains the specified cutting depth with consistently high precision and without further aids.

    The 280 SM(i) is an all-rounder for all rock hardnesses and applications. The 2,750 mm cutting drum unit with a cutting depth of up to 650 mm is precisely adaptable to each specific application and achieves outstanding cutting performance with minimal pick wear. Wear-resistant toolholder systems ensure optimal pick utilisation and minimal downtimes. The soft rock cutting drum unit is designed especially for high material flows in soft rocks. In contrast, the hard rock cutting drum unit ensures maximum durability and long life in hard rocks.

    In the extraction of primary resources by open cast mining, the key priority is always a combination of highest possible productivity, maximum purity of the material mined and the reduction of impact on people and the environment to a minimum. Aside from performance, the productivity of mining equipment depends primarily on constant operational readiness and optimum machine utilisation. Only a reliable and maintenance-friendly machine assures high utilisation rates. The innovative operator’s cabin contributes to the operator’s ability to exploit the full potential of the machine and maximise productivity. The 280 SM(i) surface miner is therefore the tool of choice for cost-efficient mining processes in the 120 t-class.

    The high-performance, hydraulically height-adjustable, rear discharge conveyor with a movable counterweight can be slewed to the right and left by 90° and enables the loading of mining trucks with payloads of up to 100 t. What’s more, the operator can continuously vary the speed of the belt independent of the engine speed to reduce belt wear dependent on the material volume and the piece-size of the mined material.

    Entirely new standards are set by the dust-sealed and air-conditioned positive-pressure cabin with fresh air filtration, which effectively prevents the ingress of dust into the operator’s workplace. Mounted on the front left chassis column, the operator’s cabin with all-round glazing is decoupled from the machine body and can be rotated by 90° in both directions. Up to six cameras can also be installed to provide even better all-round vision. Various automatic functions also contribute to the operator’s comfort, reduce the risk of fatigue, assist the operator in the achievement of high productivity rates and make the overall process more efficient.

    These days, the reduction of carbon emissions, noise, dust and vibration while maintaining consistently high extraction rates and productivity is more important than ever before. With the new surface miner, Wirtgen offers innovative technologies that minimize impact on the environment and conserve valuable natural resources. Thanks to the reduction of carbon emissions by low specific fuel consumption, an efficient water management system and effective solutions for the minimization of dust pollution, the 280 SM(i) shows that ecological and economic considerations are actually compatible and closely interconnected.

    Further information/Weitere Informationen:
    WIRTGEN GROUP
    www.wirtgen-group.com

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