The World of WIRTGEN Surface Miners
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Cutting, crushing and loading rock in a single operation. The World of Wirtgen Surface Miners

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Breaking new ground in the mining of primary resources. THE ECONOMICAL EXPLOITATION OF PRIMARY RESOURCES IN OPENCAST MINING IS BECOMING INCREASINGLY DIFFICULT AS THE MINERAL CONTENT OF MANY DEPOSITS IS DWINDLING DUE TO DIFFICULT GEOLOGICAL CONDITIONS. IN ROCK CONSTRUCTION, MACHINES ARE REQUIRED FOR PRECISE LEVELLING OPERATIONS UNDER RESTRICTED SPACE CONDITIONS. OUR PATENT REMEDY IN BOTH CASES IS MECHANICAL EXPLOITATION BY MEANS OF SURFACE MINING. BEING THE INNOVATIVE LEADER IN THIS TECHNOLOGY, WIRTGEN IS PASSIONATELY DRIVING THE DEVELOPMENT OF THIS ECONOMICAL AND ENVIRONMENTALLY GENTLE...

EFFICIENT AND ENVIRONMENTALLY COMPATIBLE MINING OF ROCK 6 - 7 FROM FUTURE VISION TO RECOGNIZED TECHNOLOGY 8 - 9 SURFACE MINERS IN DETAIL 10 - 11 OPERATING PRINCIPLE AND COMPONENTS 12 - 13 UNRIVALLED CUTTING TECHNOLOGY 14 - 15 EFFECTIVE OPERATING AND SAFETY CONCEPT 18 - 19 THE WORLD'S LARGEST AND MOST COMPREHENSIVE MODEL RANGE 20 - 21 HIGHEST QUALITY FOR CONTINUOUS OPERATION 22 - 23 SUCCESSFUL MINING OPERATIONS IN ALL PARTS OF THE WORLD 26 - 27 RESOURCE-EFFICIENT SURFACE MINING

Efficient and environmentally compatible mining of rock WIRTGEN is global market leader in the manufacture of machines for cutting rock in opencast mining operations. WIRTGEN surface miners cut primary resources such as coal, gypsum, iron ore, salt, phosphate, bauxite, limestone or granite, achieving high degrees of purity in the process. They are increasingly used as primary extraction equipment also in newly opened-up opencast mines or extensions of existing opencast mine operations. Surface miners are just one step in a whole process chain but have a vital influence on the entire process...

CUTTING, CRUSHING AND LOADING IN A SINGLE OPERATION BLASTING IS AVOIDED, STABLE SURFACES ARE CREATED The mining material is cut, crushed and, if required, loaded straight into trucks or dumpers in a single operation, thus dispensing with conventional primary crushing in an additional work step. The surface mining process is much more economical than standard drilling and blasting methods with subsequent material loading. Strict environmental standards in terms of noise and dust emissions make the vibration-free surface mining process attractive in comparison to drilling and blasting. The...

From future vision to recognized technology The 3000 SM prototype is successfully used in coal mining. The 1900 SM is mining gypsum in South Africa. WIRTGEN presents prototypes of the 2600 SM for use in coal and limestone mining. An optimized model of the largest surface miner built to date, the 4200 SM, is produced even today. WIRTGEN sets up production of the 2500 SM for special operations in hard rock. The 2500 SM is of modular design and suitable for versatile use in soft to medium-hard rock. The optimized 4200 SM is launched in two designs for soft rock and hard rock mining. WIRTGEN...

1985 The 3500 SM is in operation in the USA, cutting foundations in hard limestone material. WIRTGEN DRIVES THE DEVELOPMENT OF SURFACE MINING Why don’t we apply our expertise gained in asphalt milling to the mining of hard rock? In the mid 70s, this idea triggered the development of a new, economically efficient opencast mining method known as surface mining. Cutting trenches, the 3700 SM simultaneously produces gravel material intended for further use. What followed was an unparalleled success story, and it was headed by WIRTGEN as the driving force behind it right from the start. 1980...

Surface miners in detail 10 11 DISCHARGE CONVEYOR Movable counterweight for high machine stability and undisturbed operation along the edge of embankments. Discharge conveyor including raising and slewing function for direct loading onto a transport vehicle. POWER UNIT WITH DIESEL ENGINE Fuel-efficient, powerful diesel engine paired with a heavy-duty mechanical belt drive for high cutting performance. 9 | DRUM TOOLING Extra-robust mining tools arranged in a helical pattern for high cutting performance, minimized tool wear and extended durability. 8 | CUTTING DRUM Mechanically driven,...

MINING MINERALS IN A SINGLE OPERATION As the surface miner moves forward, a special cutting drum rotates against the direction of travel, cutting layers of material from the rock formations and crushing it in the process. The primary conveyor picks up the material in the drum housing and transports it towards the rear of the machine, where it is then accepted by the slewable and height-adjustable discharge conveyor. The discharge conveyor loads the material into trucks or dumpers or discharges it to the side of the miner. The discharge height can be adjusted to the height of the transport...

Operating principle and components INTELLIGENT CENTRAL-DRUM DESIGN The technical centrepiece of the central-drum design implemented in our surface miners is the cylindrical cutting drum. Fitted with replaceable carbide tools and mounted close to the machine’s centre of gravity, the drum guarantees maximum cutting performance and precise cutting depths in the mining of hard rock. A powerful diesel engine combined with a heavy-duty belt drive contributes to the machine’s rapid progress in hard rock. Optimum transmission of power is ensured by the highly efficient mechanical cutting drum...

1 | Clutch 2 | Power belts 3 | Planetary transmission 4 | Diesel engine 5 | Cutting drum Working direction Drum drive design with centrally arranged cutting drum. The cutting drum rotates against the direction of travel to allow cutting from the bottom upwards – no vibrations

WIRTGEN cutting tools guarantee maximum cutting performance while minimizing the cost of wear. Unrivalled cutting technology OUR FIELD OF CORE EXPERTISE WIRTGEN cutting drums, toolholders and cutting tools are tried-and-tested, proprietary high-tech elements subject to a continuous improvement process. For each application, we are making every effort to optimize the cutting performance while at the same time maximizing the service life and minimizing operating costs. To achieve this goal, the cutting drum and toolholder system are given a heavy-duty design tailored to performance...