equipment but also the use of innovative drive technologies. As a result, the Keestrack H4 is the world ' s first mobile cone crusher to offer a highly efficient three-deck postscreening module with an oversize material recycler for the production of three highgrade end products in one pass. Keestrack is offering a choice of two economical drive combinations: direct diesel drive of the crusher with electrical or electro-hydraulic peripherals( conveyors, screen units etc.) or the fully hybrid /“ plug-in” version with an electrical crusher drive system powered by an on-board diesel generator or mains electricity.
With the Mobicone MCO 11 PRO mobile cone crusher, Kleemann GmbH, a Wirtgen Group company, is heralding the launch of its newly developed PRO Line. It offers quarry operators particularly robust machines for high-performance applications. The machine is driven by a powerful yet economical diesel-electric drive system which allows operation with an external power supply. The cone crusher with a maximum feed capacity of up to 470 t / h is equipped with the innovative Continuous Feed System( CFS) which ensures efficient use of crushing capacity. The MCO 11 PRO is also ideal for use in linked combinations
of machines. In addition, the machine can be transported in one piece and can be quickly put into operational position thanks to hydraulic moving machine components.
Kögel Trailer GmbH & Co. KG will present the new Kögel Multi. This versatile trailer is particularly suitable for transporting building materials and for weather-resistant freight. The platform semi-trailer has a reinforced chassis and a semi-trailer load capacity of 15 t to meet the heavy-duty requirements in the construction industry. Depending on the application, the trailer ' s aluminum walls can be removed. This makes the Multi ideal for transporting various building materials.
In response to customers ' requirements, Komatsu Mining developed the new PC7000. Komatsu designed the 677 t machine with a view to creating the safest and most efficient large hydraulic excavator in its class. The PC7000 is powered by two 1,250 kW diesel engines and is optionally available with an electric drive system. With its 36 m ³ shovel or backhoe bucket, the PC7000 is designed for use in a range of conditions. The PC7000 is tailored to the 240 to 290 t 830E and 860E dump trucks from Komatsu. Drivers will notice the machine ' s improved control system. After
Photo by Africa
all, Komatsu has optimized both the shovel design and the hydraulic system. As a result, the machine can swing around more quickly and the shovel can penetrate the material more easily.
To coincide with bauma, Liebherr- International Deutschland GmbH will launch the Liebherr PR 776, the first infinitely variable hydrostatically powered crawler tractor in the 70-ton category. Designed for the most demanding mining and quarrying applications, it is powered by a Liebherr twelve-cylinder diesel engine with a maximum power of 565 kW. It has a maximum operating weight of 74 t and can be equipped with blades with a capacity of 18 m ³( semi-U blade) or 22 m ³( U blade). Thanks to its modern drive concept, the new PR 776 crawler tractor is extremely economical. The infinitely variable hydrostatic drive system which is used in all Liebherr crawler tractors is an innovation in this class of machines. Another advantage of the modern drive concept is the needs-based feed pressure supply. If, for example, the full feed pressure supply is not required during operation, this is automatically returned.
NOVEMBER 2016 Mining Engineering and Its Importance
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