For the month of July 2021, a TAKRAF SRs(K) bucketwheel excavator (BWE) at SUEK’s Nazarovsky open pit mine in Russia, part of an integrated high-capacity material handling system, dug and moved 1,236,000 m3 of overburden material – beating a previous monthly record that had stood for six years. TAKRAF says it is proud of its long standing relationship with SUEK and also of the efficiency and reliability of its mega-machine system that was designed and built more than 25 years ago and is still continuing to deliver value to its client. The system includes a TAKRAF high-capacity spreader which is one of the largest ever-made with a 195 m length.
According to SUEK, the high result was achieved thanks to the coordinated work of the complex’s crew and auxiliary services, as well as extensive modernisation, which made it possible to automate processes as much as possible. For example, the complex is operated by a programmable industrial controller, the machine is programmed for auto–digging, and modern control panels have been installed in the operator’s cabins.
Andrey Fedorov, General Director of SUEK–Krasnoyarsk JSC, congratulated the Nazarovsky mine team on the important production milestone. “Such a high production result was made possible by professionalism, responsible attitude to their work and traditions of excellence, for which the Nazarovsky mine has always been famous,” said the CEO, wishing the team further productive and accident–free work.
The BWE from TAKRAF is the only one in Russia, and weighs in at 9,800 t, with a capacity of over 40,000 cubic metres per day. It has 24, 2,300–litre buckets each turning on the rotary wheel. The SRs(K) 4000 has moved 178 million cubic meters of rock mass into the heaps since it began operating. A 56 man crew operates the giant complex. The cost of overburden removal is one of the lowest in SUEK – RUB30 per cubic metre.
Also in July the mine railway stripping section achieved high results, having achieved the maximum monthly output of 442,000 cubic metres of rock. Excavator crews (two excavators EKG–10 are working in the face, two machines ESH 10/70 are at the receiving end) and the railroad workers, who are engaged in transportation of rocks to the dump area (four locomotives – diesel locomotive TEM–7 and ten dump cars 2BC–105), worked as an efficient team. This year, 2021, the Nazarovsky mine is celebrating its 70th anniversary and SUEK is celebrating its 20th anniversary.
