Modern Quarrying Q4 2020

MB Crusher’s BF90.3 attached to a Doosan DX225LC excavator.

ON THE COVER

Operational and economic efficiencies are essential for the management and stability of quarries and mines. Lower operating costs and fixed costs, as well as reduced maintenance and logistics costs are key factors in increasing productivity and speeding up processing times. MORE PRODUCTIVITY AT LOWER COST: A QUARRY CHALLENGE

C rushing and reprocessing of the extracted product in quarries and mines has always been a very important work phase. It is often expensive, mainly because the material available is limited and destined to run out. Some have found a solution to these problems, by including MB Crusher units in their fleets. MB Crusher’s equipment gets attached directly to the heavy machines already present in the quarry and can work even in small or difficult to access spaces. Transporting an MB unit has no separate cost as it can travel to the site together with the excavator. MB also gives a solution to this problem, since: • the material can be crushed/screened on the spot, near where it was extracted; and • the crushed/screened material can be reused in the quarry for the restoration/maintenance of the internal road network, without having to purchase the sub- strate material externally. Quarrying activities are increasingly linked to safety, workers and manufacturing processes. From inside the excavator cabin, the operator puts the MB units into

operation to recycle the material and manage the work safely. Additionally, the maintenance of the MB units is also simple, fast and is done on-site, without risks. High-quality material on the spot Recycling spoil material must be done according to cer- tain standards. This allows the processed material to be immediately reused. Bucket crushers and bucket screeners from MB process any extracted materials, even the hardest and toughest ones. The design of the units provides output precision and regular shaped pieces, allowing material that was previously destined for the waste dump to be sold or reused on-site for the maintenance of the road network, filling of trenches and excavations, restoration of the quarry where necessary. Crushing and recycling of clay and rocks Used since ancient times in construction, clay is a versa- tile natural element, which also requires simple man- ufacturing processes. It is used for many applications,

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MODERN QUARRYING QUARTER 4 - 2020