(VIDEO) Tadano all-terrain crane can transport 11.9-tonne counterweight within its axle load limit
Tadano's new AC 4.070-2 all-terrain crane can transport its maximum counterweight of 11.9 tonnes by itself while staying within an axle load limit of 12 tonnes, and it can still manage 4.4 tonnes when the axle load is reduced to 10 tonnes instead. This makes the AC 4.070-2 a flexible taxi crane.
With a main boom length of 50 metres (164 ft), the crane can lift a good 7.1 tonnes at a radius of 12 metres (39.4 ft), and this goes up to a total of 7.3 tonnes at a radius of 10 metres (32.8 ft).
The Tadano AC 4.070-2 is an assist crane ideal for erecting large lattice boom crawler cranes, as well as operating on residential and functional building construction projects. Moreover, the crane's compact design helps to boost these advantages even further: The crane has a total length of 11.7 metres (36 ft), a width of 2.55 metres (6.5 ft), and a travelling height of 3.8 metres (9.8 ft).
Tadano offers two extensions for the crane's 50-metre (164 ft) main boom - a swing-away jib with a length of 6.5 metres (19.6 ft) and a double folding swing-away jib with a length of 16 metres (52.5 ft), making it possible to reach a system length of up to 66 metres (216.5 ft). In addition, there is also an optionally available runner.
The Tadano AC 4.070-2 all-terrain crane uses the IC-1 Plus control system, which determines the crane's lifting capacity for every boom position as a function of the superstructure's slewing angle. Moreover, the way these computations are carried out directly in the cab means that the lifting capacity for a specific radius is no longer limited to the lowest value for a pre-calculated 360-degree lifting capacity, but is instead determined in real-time. As a result, the AC 4.070-2 is always able to take advantage of the maximum lifting capacity available to it. When used together with the Flex Base, an outrigger system that comes as standard and features outriggers that can be extended to any point within their available range, this enables the crane to take care of jobs that would normally be the exclusive purview of larger cranes. The Flex Base can be used to extend the outriggers in asymmetrical configurations instead of predefined extension positions, making it possible for crane operators to get the outriggers as close to obstacles as possible and use the maximum possible outrigger spread in any scenario. After this, all the IC-1 Plus has to do is incorporate every single centimetre of outrigger extension into determining the lifting capacity.
In addition to the Flex Base, the Tadano IC-1 remote telematics solution for location-independent crane and fleet management is also available for the AC 4.070-2. This cloud solution provides remote access to all relevant crane data from anywhere, enabling online troubleshooting by Tadano Support.
The AC 4.070-2 uses the Tadano Surround View system, which features a separate monitor in the carrier cab that provides 360-degree visibility and graphically shows the maximum possible extension lengths for the outriggers and the counterweight tail swing radius from a bird's eye view perspective. Accordingly, Tadano Surround View makes it significantly easier to optimally position the crane at work sites without the need for additional personnel. The system also provides assistance on the way to the work site by making it easier for crane operators to notice pedestrians and cyclists. For example, the area to the right of the crane, which traditionally does not have the greatest visibility, is highlighted on the monitor when the turn signal is activated.
With a special transportation cradle and the required hydraulic connections, the four-axle unit is ideally prepared for work with the E-Pack. This feature is an electro-hydraulic system that comes with an integrated 32-kW electric motor that makes extremely quiet zero-emission crane operation possible. The E-Pack can be used to carry out all AC 4.070-2 crane functions without any negative impact on the corresponding maximum lifting capacity. Not only that, but other performance characteristics are comparable to those achieved with the operational use of a diesel engine in many work areas, expanding the range of applications of the AC 4.070-2 to indoor projects and cleanrooms, for example
The single-engine design allows for climate-friendly crane operation thanks to its compatibility with various alternative diesel fuels, such as HVO. The use of these fuels generates fewer emissions and makes operating the crane more environmentally friendly.