The most powerful 70-tonne machine on the market, according to its makers, is all set o debut for Bauma 2022. The new Tadano 4.070-2 all-terrain crane comes with enough power to transport its sizeable maximum counterweight of 11.9t by itself, while staying within an axle load limit of 12t.
When developing its new AC 4.070-2 all-terrain crane, Tadano made sure to pursue some extremely ambitious goals: “To put it simply, we wanted to bring to life a powerful and cutting-edge 70-tonne crane that would deliver the best performance on the market in as many axle load configurations as possible. And to put it plainly, that’s exactly what we did,” explains project manager Sascha Scholler, who was responsible for the development.
Among the various impressive characteristics, one stands out in particular: The AC 4.070-2 can transport its sizeable maximum counterweight of 11.9 tonnes by itself while staying within an axle load limit of 12 tonnes, and it can still manage an impressive 4.4 tonnes when the axle load is reduced to 10 tonnes instead. Needless to say, this makes the AC 4.070-2 an extremely flexible and versatile taxi crane. And there are also the lifting capacities, which are just as impressive: For example, with a main boom length of 50 meters, the crane can lift a good 7.1 tonnes at a radius of 12 meters, and this goes up to a total of 7.3 tonnes at a radius of 10 meters.
“No other crane in its class can reach these lifting capacities,” Sascha Scholler underscores with a glint of pride in his eyes. Among other things, this means that the Tadano AC 4.070-2 is the perfect assist crane for erecting large lattice boom crawler cranes, as well as an outstanding crane for residential and functional building construction projects. Moreover, the crane’s extremely compact design only helps to boost these advantages even further: With a total length of 11.7 meters, a width of 2.55 meters, and a traveling height of 3.8 meters, it is the most compact four-axle unit of its class on the market.
The boom solution also plays a crucial role in the AC 4.070-2 crane’s versatility: Tadano offers two extensions for the crane’s 50-meter main boom – a swing-away jib with a length of 6.5 meters and a double folding swing-away jib with a length of 16 meters, making it possible to reach a system length of up to 66 meters. In addition, there is also an optionally available runner.