MAY 2026 Ӏ JOB OF THE MONTH
TAKE DOWN TURBINE
Prangl dismantles four turbines in challenging weather conditions using a 700 tonne and a 300 tonne telescopic mobile crane.
Austrian lifting and transport specialist Prangl has dismantled four turbines at the Groß Sierning wind farm, in Lower Austria, as part of a repowering programme that will replace and remove older units to increase output. Prangl carried out the dismantling phase in periods of difficult weather and with limited space to positioning the cranes. It structured the work to minimise downtime by sequencing the removal and transport of large components.
It selected a 700t telescopic crane
for high-elevation, double-hook lifts, supported by a 130t auxiliary crane. A telehandler with a 6t lifting capacity handled site components, while a three-axle tractor with a four-axle low-bed semi-trailer transported parts to and from the location. Each turbine was taken down starting with the full rotor and hub – which were lowered in one piece.
Using a second attachment on the
hub, the 43t rotor was turned to a horizontal position for set-down. Crews then removed the 51t generator and the 18t nacelle from a height of 85m. Tower segments followed, lifted from
the top down in sections of approximately 21m, weighing two at 44t and two at 60t. Operations proceeded around cold
conditions and snow showers, with high winds occasionally halting lifts. The wind farm repowering is scheduled for completion by May 2027.
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