AKM Autokranvermietung chimney liner lift

By Christian Shelton28 May 2019

German crane rental firm AKM Autokranvermietung was commissioned by Munich City Utilities to lift a chimney liner weighing 19 tonnes into the existing chimney of a cogeneration plant in Munich, Germany.

To carry out the lift, AKM Autokranvermietung used its Demag AC 500-8. It’s a 500 tonne (600 ton) capacity class, eight axle all terrain crane with a 56 m (183.7 ft) main boom. The load needed to be lifted a height of 119 m and the crane was rigged with a 47 m main boom and a 72 m luffing jib in the SSL 60° configuration with 180 t of counterweight.

Due to cramped conditions on the job site bog mats were placed under the crane’s outriggers in order to raise it up and gain a little more height. A customised spreader beam was used, with its load sling fixing holes matched to align with the liner segments enabling the maximum possible hook height to be achieved. Despite this, clearance was tight, with just 20 cm between the load and a railing at the top of the chimney. Due to lack of visibility a signalman was used and the liner successfully installed .

Demag AC 500-8 AKM

There was clearance of just 20 cm between the top of the chimney and the load 

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