ROUGH TERRAINS Ӏ SECTOR REPORT
RouGH AND READY
The rough terrain segment serves a diverse range of end users with cranes ranging from a few tonnes capacity to over a hundred. The use of rough terrains on longer term projects makes them a good candidate for early electrification although diesel units still have much to offer. Will North reports.
The rough terrain (RT) segment offers users a range of features and capacity classes which makes them suitable for medium and long term projects in sectors as diverse as energy, civil engineering, and general construction. While their lack of roadability makes them an unlikely choice for simple short term jobs on any site an all terrain can access it also means that crane designers do not have to be quite as precise in optimising the cranes’ capacity and axle loading.
Liebherr’s new LRT 1130-2.1 is the largest two- axle RT available
That combination of widespread use on long term sites and design flexibility makes them a strong candidate for early electrification. Crane designers can assume that many sites will be able to provision electric power, allowing for recharging. And they may be able to more easily accommodate the change in weight and dimensions of power components than they could on an all terrain. At ConExpo this month we should expect more news from
Tadano on the launch of the first crane in the segment to be electrically powered. The company has been reluctant to describe the crane in detail ahead of the Las Vegas show but has said the crane will be able to drive to the jobsite and complete all lifting operations using battery-electric, rather than diesel, power. Cranes like this will become
increasingly important as local planning authorities implement restrictions on emissions in urban areas. Many cities around the world have already begun to take steps in this direction, with low emission zones already in place in some cities, and the first zero emissions zones under trial. Over the next decade project
owners will look to achieve their own net zero goals in their operations and on construction sites. The greenhouse gas protocols many companies use to measure their sustainability goals consists of three ‘scopes’. Scope 1 of the protocols measures emissions generated within a company, through burning diesel in its own vehicles, or producing emissions as a result of its own activities. Scope 2 considers emissions from energy use; for example, does the electricity it
34 CRANES TODAY
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