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<\/p>\n\n\nMine Master released its new battery driven \u201cRoof Master 1.8KE\u201d to be tested in underground conditions. The addition of a battery-powered electric bolter to the wide portfolio of underground mining machines produced by the company was a natural progression following current trends in mining, related to the broader use of clean technologies.<\/p>\n\n\n\n\n\n\n
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\u201cWith new developments we work closely with KGHM, one of world\u2019s biggest copper producers, the design of the electric machine was a response to the needs of this customer,\u201d said Jerzy Nadolny, Mine Master CEO. \u201cThe mines are going deeper, so the cost of ventilation is increasing with every meter. Electric battery solutions will help to reduce gas emissions, improve safety and ease the maintenance.\u201d<\/p>\n\n\n\n
The Roof Master 1.8 KE is undergoing testing at KGHM mine in Lubin, Poland. The machine is designed to work in galleries from 3.0 to 5.8 meters in height. It is equipped with a mechanized bolting mast for 9 bolts with a height of 1.8 meters. The battery installed on board is 120 kWh, sodium-nickel and can be recharged by using the existing mine power network in the 500 to 1,000 voltage range. For this purpose a battery charger is built on the machine chassis. The battery will even recharge as the rig is tramming downhill.<\/p>\n\n\n\n
The first comments from KGHM mine operators are enthusiastic. \u201cDuring the driving process the machine is very quiet, the engine is hardly audible,\u201d said Karol Ignatowicz from Lubin mine. \u201cI am impressed, the cabin is very comfortable, so far everything works well.\u201d<\/p>\n\n\n\n
\u201cIt is a technological breakthrough for KGHM,\u201d said Andrzej Czajkowski, a vice-chairman of management board at Mine Master. \u201cVery shortly, in the same mine, we will be testing the electric drill rig Face Master 1.7 LE. What is special about this machine is that even with the battery charger built on, it is still the lowest in its class with a transport height of 1.65 meters, adapted to heavy-duty mining excavations in a room and pillar system, with slopes up to 15 degrees.\u201d<\/p>\n\n\n\n
The Face Master 1.7 LE is designed to drill blast holes between 41 mm and 76 mm in diameter and net length 3.2 meters in heights above 1.7 meters. It has a closed, air-conditioned cabin which gives the operator very good visibility even in lowered positions. For better visibility during drilling it can be up-lifted.<\/p>\n\n\n\n
As in the electric bolter, the battery installed on board can be recharged via the 500 to 1,000V power network. The electric drive technology used ensures significant noise as well as gas emission reduction, and thus improves the operator\u2019s comfort and safety.<\/p>\n\n\n\n
The telescopic boom\u2019s design allows for the replacing of all wear slides in around 15 minutes without the need to disassemble the boom. This innovative patented solution significantly improves the day-to-day maintenance of the machine. Similarly, accessible electrical installation and hydraulics design greatly improve maintenance time.<\/p>\n\n\n\n