New Demag AC 45 City crane is the most compact in its class

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Terex Cranes has released its new Demag AC 45 City crane, which features a new three-axle unit that redefines compactness in the 45 metric ton (49.6 US tons) lifting capacity class. It has a total length of only 8.68m (28.4ft), a width of 2.55m (8.3ft), and an overall height of just 3.16m (10.3ft).

The crane’s drivetrain has six forward gears and one reverse gear. It is fitted with a 260kW MTU motor that meets Euromot 4 requirements and, together with the crane operation start/stop function, ensures cost-effective and environmentally friendly operation.

The Demag AC 45 City crane is suitable for use in a wide variety of applications. With a length of 7.8m (25.5ft), the base section of the crane’s fully hydraulic main boom is particularly compact. This means that it can work in buildings with a relatively low clearance while still keeping its boom at a steep angle. In addition, its fully hydraulic 31.2m (102.3ft) main boom means it can start working much faster than comparable cranes with booms that need to be set up with pins.

The crane’s configuration flexibility allows for it to be customized to suit application requirements, for example, with the 1.3m-long (4.2ft) runner for loads of up to 25 metric tons (27.5 US tons), or with the three-sheave hook block, which allows for six-part reeving. With offsettable main boom extensions of 7.1m (23.2ft) or 13m (42.6ft), the system length can be increased to an impressive 44.2m (145ft).

Another key feature of the new Demag crane is its innovative IC-1 Plus control system. The system calculates the crane’s lifting capacity for every boom position as a function of the superstructure’s slewing angle, and in real time to boot. This means that the lifting capacity for a specific radius is no longer limited to the lowest value for a pre-calculated 360° lifting capacity (which used to be the case).

Instead, the crane can always take advantage of the maximum available lifting capacity. This is particularly useful for lifts in which the outriggers are extended in an asymmetrical configuration, as it enables the Demag AC 45 City crane to take on jobs that would normally be carried out by larger cranes.

The Demag AC 45 City crane comes with features such as an axle load indicator, a hook height indicator, cruise control, and cameras for load, hook and hoist monitoring and for backing up. Remote radio control and storage boxes are included as well.

November 3, 2017

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Tom is editor of ivtinternational.com and iVT magazine. During his 20 year career in journalism Tom has worked for a diverse range of titles including Men's Health and Cosmopolitan. He also edits iVT's UKi Media & Events stablemate Traffic Technology International.

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