Lifting 3500 ton mining dragline from ENERPAC

One of the world’s largest precision lifting tasks of land-based equipment has been successfully undertaken in Australia. An Enerpac synchronous hydraulic lifting system has been employed by G&S Engineering Services in Queensland to lift, within tolerances of 0,5 mm, a huge mining dragline weighing more than 3500 tons.

The PLC-controlled precision hydraulic system was used to lift the dragline for essential maintenance of the bearing surfaces on which the dragline swivels.

It also delicately tilted the huge suspended weight to simulate different loads on the structure so bearing surfaces could be precisely machined to accommodate them and maximise the bearing surfaces’ lifespan.