Liebherr Container Cranes has recently completed the testing of articulated boom cranes in its Killarney facility in Ireland. The complete articulated boom and main beam of one of the cranes for Port Botany was assembled in Liebherr Container Cranes facility on a special test bed, where it was tested. This articulated boom design allows these large cranes to operate within the height restrictions prevailing at Port Botany, due to its close proximity to Sydney airport, Liebherr said.