As well as being the first in Europe, the Estonia machine is one of 35 that have already been built and shipped worldwide from the Gunsan factory in South Korea. The new DX1000LC-7 was supplied to KKT by INTRAC Group, the Doosan Authorised Dealer for the Baltic countries of Estonia, Latvia and Lithuania.
Attending the ceremony to celebrate the handover of the new DX1000LC-7 at North Kiviõli, Stephane Dieu, Excavator Product Manager at Doosan Infracore Europe, said: “Equipped with a 6m3 rock bucket for direct extraction work, the DX1000LC-7 at the oil shale mine provides the lowest fuel consumption available in the 100-tonne excavator market. The average fuel consumption is 45l/h, and with the production target set to around 1200 tonne per hour, that provides a very impressive yield of 26 tonnes for each litre of fuel used."
The new excavator has joined the existing Doosan DX800LC-7 80-tonne and DX490LC-7 50-tonne models at North Kiviõli, both of which have completed 7000 operating hours in two years and work alongside several other 80-tonne machines at the mine. The purchase decision to replace one of the existing 80-tonne machines with the new DX1000LC-7 was based on the successful performance of the DX800LC-7, with which KKT is burning 10 litres per hour less fuel than the competitive machines for the same production output.
These savings add up - after over 4000 operating hours, the DX800LC-7 had already saved the equivalent of 40,000 litres of fuel, a massive figure, especially when the escalating price of fuel is considered. Compared to the other 80-tonne excavators, the DX800LC-7 uses €1.5/litre less fuel - the overall saving was already €60,000 after only 4000 hours. After 10,000 hours, the saving will be equivalent to €150,000.
The new DX1000LC-7 promises even more savings. Driven by the claimed most powerful engine in the 100-tonne class, the DX1000LC-7 also has the highest hydraulic flow for this size of the machine, providing what Doosan says is a best-in-class performance with higher productivity, lower fuel consumption and smoother controls.
The DX1000LC-7 excavator is powered by the new stage V version of the well-proven Perkins 2806J diesel engine, providing a high power output of 469kW, more than any other machine in this class. The high output of the engine is combined with a Virtual Bleed Off (VBO) hydraulic system (D-ECOPOWER+), providing a claimed best-in-class hydraulic flow of (3 x 523) - 1569 l/min and a high system pressure of 360 bar, together contributing to the best performance in the 100-tonne market
