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Johnsons Wellfield's Double


Diamonds Johnsons Wellfield of Huddersfield, West Yorkshire, has made a significant investment in purchasing a brace of seventy-five tonne Volvo EC750E excavators which take charge as primary movers in extracting Yorkstone blocks at the company’s Crosland Hill Quarry. The two new arrivals replace competitive makes of a similar


tonnage and were chosen following a competitive tender process but, more importantly, the decision to opt for more Volvo machines was due to the high reliability and productivity of the seventy-tonne EC700C purchased in the spring of 2016, according to Managing Director, James Berry. “We’ve been very pleased with the performance of our EC700C in terms of its capability at the quarry face and its reliability,” says James. “It hasn’t missed a beat in this very hard and demanding application of prising large Yorkstone blocks directly from the face.” The purchase of Volvo’s latest flagship excavators coincides with the company’s’ plans to extend the quarrying activities at the Crosland Hill facility. Another factor in the purchasing decision was down to the EC750E’s ultra-low, external noise emission measuring just 108 dB(A) according to ISO 6395.


Both machines will work as a team, tearing out large Yorkstone blocks and handling overburden material. To facilitate this, they’ve been equipped in Mass Excavation configuration complete with hydraulic attachment brackets, heavy duty 4.4m³ extreme rock buckets and heavy-duty ripper tooth. Thus equipped, the EC750E provides a maximum breakout force of 383 kN and a tearout force of 337kN. The combination of the 6.6m boom and 2.9m dipper arm (mass excavation) gives a maximum reach of 11.46m and a generous dig depth of 7.2m. “We’re more than confident that the additional operating weight, engine power and breakout force of the EC750E over the EC700C will guarantee the production requirements we are looking for, going forward,” says James.


CONTINUED OVERLEAF a THE VOICE MAGAZINE No32 2018 33


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