Dornseiff has a Liebherr LR 1250 crawler crane working the expansion of Osram in Regensburg, Germany

Dornseiff has expanded its fleet with a fully equipped crawler crane, type LR 1250, from Liebherr. The company Dornseiff is involved in the Orsram Expansion project with its new LR 1250 in Regensburg.

Currently, fifty-two telescopic and crawler cranes with lifting capacities up to 500 t as well as mobile telescopic construction cranes make up the fleet of  Dornseiff Autokrane und Schwertransporte & Co. KG, which operates from four locations in Germany.

For the Osram project, the Liebherr crawler crane was fitted with a 35 m main boom and a 35 m jib. It was used for lifting heavy concrete elements as well as the steel construction of the new production building’s roof structure. The crane’s Blocked Crawler Mode was deployed several times. At an outreach of 45 m, the lifting capacity could thus be increased by 20% to 18 t, and at 36 m by 15% to 23 t. This significant improvement made it possible for Dornseiff to accept the contract for this job site.

Thanks to the increase in lifting capacity in Blocked Crawler Mode, it was not necessary to use a larger crawler crane – a decisive advantage due to the confined space on site. Furthermore, the continuously variable main boom with lifting capacities that are actively calculated by the control system proved to be highly effective for this job.