What is a jib tower crane

Large jib tower crane, is not the traditional sense of the lower rotary, non-self-erecting jib tower crane, but represents a large lifting capacity, large lifting height, large lifting speed of contemporary heavy construction cranes. Large jib tower crane boom design using "rod" structure, compared to the horizontal jib tower crane "beam" structure for better stability, the boom structure accounts for a smaller proportion of the weight of the whole machine structure, while the maximum lifting capacity is greater. \r\\nLarge jib tower crane in addition to external climbing, internal climbing, walking function, special features \r\n(1) large lifting capacity of modern large-scale construction projects using steel or steel, concrete combination structure, the weight of the lifting unit is greatly increased, profiled, combined structure usually reaches 32 tons up to a maximum of more than 80 tons. Therefore, large dynamic arm tower crane configuration heavy main lifting system, the maximum lifting capacity is usually 32 to 100 tons. \r\n(2) large lifting height \r\n As a result of the use of a special climbing system, the crane can climb with the building structure as a whole, the lifting height has increased significantly. \r\n(3) large lifting speed \r\n lifting structure of high power, especially with the use of self-contained internal combustion engine towing program, with load lifting speed of more than 100m/min.