WORLD PROSPECTS
Macmahon invests in hydraulic excavators at Matarbe
In its recently released 2024 Sustainability Report , mining contracting major Macmahon laid out its commitment to minimising its impacts on the environment by collaborating with clients to reduce , recycle , and rehabilitate , as well as promoting environmental and sustainability awareness and identifying energy efficient and carbon reduction opportunities .
In FY24 , Macmahon established its first threeyear ESG roadmap based on its FY23 strategy and sustainability framework , establishing strong collecting and analysing three months of foundations for its ESG strategy . It is already machine data , followed by comparing the results progressing , with Scope 1 and 2 emissions through a controlled comparison test . dropping from 2,004 tonnes CO 2-e in FY23 to
To ensure accurate and reliable results , the 1,871 tonnes CO 2-e in FY24 . A Climate Transition following conditions were maintained throughout Plan will be developed in FY25 to demonstrate the controlled comparison test : how Macmahon will transition to a low carbon n Same Operator : Both excavators were future , outlining its pathway to achieve interim operated by the same individual to eliminate and long-term carbon targets , decarbonisation variations in operator performance . goals and drive positive outcomes . n Good Condition : Both machines were
At the Martabe Gold Mine in Indonesia , maintained in optimal condition , ready for
Macmahon partnered with the Indonesian testing . Komatsu dealer United Tractors to conduct a n Same Material : The excavators worked with comprehensive fuel usage study evaluating the identical materials to ensure consistency . performance of hybrid excavators . The study n Method : The application and time distribution aimed to compare the efficiency and were kept the same for both excavators . environmental impacts of a Komatsu HB365-1 The study produced the following notable hybrid hydraulic excavator against a Komatsu outcomes . Machine data showed the Komatsu PC300-8MO excavator . The study involved
HB365-1 hybrid hydraulic excavator
FLS filters set for South32 ’ s Hermosa demonstrated a 9.6 % per hour reduction in fuel consumption compared to the Komatsu PC300- 8MO . The actual comparison test confirmed the Komatsu HB365-1 hybrid hydraulic excavator demonstrated a 9.27 % per hour reduction in fuel consumption compared to the Komatsu PC300- 8MO in high swing time activities in a loading cycle . The potential carbon savings achieved with the HB365-1 hybrid excavator equate to 6 kg per hour .
Macmahon adds : “ The fuel usage study highlights the significant advantages of using hybrid excavators in mining and civil infrastructure operations . The Komatsu HB365-1 hybrid hydraulic excavator not only cut fuel consumption but also significantly boosted efficiency , allowing more work to be done with the same fuel while offering potential carbon savings . As a result , Macmahon now operates seven hybrid excavators at the Martabe mine site across various mining and civil works . These findings underscore Macmahon ’ s commitment to working with OEM partners to ensure we are working to sustainable practices and innovation in mining and civil infrastructure operations , paving the way for more environmentally friendly and cost-effective solutions in the industry .” www . macmahon . com . au
FLSmidth says it is to deliver concentrate and tailings filters to South32 ’ s Hermosa critical minerals project in the US . This new FLSmidth order will contribute to an increased supply of critical minerals such as zinc and manganese supporting the continued electrification of society .
The mine operation is designed to minimise its environmental impact , and the equipment that FLSmidth will deliver plays a critical role in supporting this . FLSmidth has received an order to deliver five AFP2500 concentrate and tailings filters to Hermosa which is located in the Patagonia Mountains of southern Arizona , US .
A key requirement for South32 is to utilise the most efficient process technologies with the lowest environmental impact . The project ’ s design is expected to result in ~ 75 % less water consumption compared to other mines in the region , and FLSmidth ’ s filter tailings technology will be a key enabler of this .
“ A key element in enabling sustainable mining is among other to reduce water consumption . Consequently , South32 ’ s ambition of developing a mine operation with a low environmental impact , including a significantly reduced water
consumption , is fully aligned with our MissionZero ambitions . Tailings filtration is one of the core competencies of FLSmidth , and therefore we are obviously pleased to support the development of this important project ,” comments Chris Reinbold , Products Business Line President at FLSmidth . The value of the order has not been disclosed .
FLS states on these filters : “ When treating tailings at high volumes , even the smallest process disruptions add up . To keep your mine operating at its highest levels , all components of our AFP2500 Automatic Filter Press are designed
for quick and easy maintenance . Our focus on cloth change and plate maintenance outside of the filter ensures maximum efficiency and safety while the filter is operating – for high availability with no spare filter required .”
It adds : “ A dual upper feed eye eliminates the requirement to remove filter plates from the filter for cloth changing . The heavy-duty design , high efficiency flood wash and drop-in filter media cloth changing system ensure the highest availability . Fast filtration times and short mechanical times minimise the filter cycle time . www . flsmidth . com
8 International Mining | SEPTEMBER 2024