RMZ – MATERIALI IN GEOOKOLJE

Izbira tehnološkega procesa in opreme za pridobivanje naravnega kamna ...435pared to the previous model:• approximately 20 % more materialexcavated from a minimum advancesection,• the time required for setting themachine before operation has beencut in half,• easier movement and faster retreatfrom the cutting location in case ofdanger,• a new blade and electronics preventthe risk of cutting into the safetypillars,• modified geometry of cutting theadvance section (increased distancesbetween cuts).Beside the cutting equipment, naturalstone excavation also requires highperformanceloaders, powerful compressors,lifts, hydraulic rollers andwater cushions with a water pump.The effective cutting depth of the newFantini GU 70/R machine is 3.2 m. Thegeometry of cuts consists of five horizontaland three vertical cuts. If comparedto the previous Fantini G.70 machine,the distribution of horizontal cutsis changed by adding another horizontalcut which increases the height of the undergroundterrain from 4.5 m to 5.2 mor more. The distribution is adapted toFigure 4. Geometry of distribution of cuts in the use of the new Fantini GU 70/R cuttingmachineRMZ-M&G 2012, 59