A powerhouse on four axles The heart of the AC 4.110-1 is a reinforced 60-m main boom that enables the crane to achieve extraordinary lifting capacities in its class. The AC 4.110-1 remains at a slender width of 2.75 m even with 24 tonnes of counterweight. The crane maintains a counterweight tailswing radius of only 3.8 m even with the full 30.4 tonnes of counterweight. Thanks to the superstructure shared with the AC 5.120-1, 80% of the counterweights for both cranes are interchangeable, as are the boom extensions, including one with reduced complexity. The Lift Adjuster reliably reduces load swinging during lifting and lowering.