We provide full ranges of tower cranes with hoist weight from 2t to 16t. Haishan Tower Crane products can be used independently or with attachment anchor, and the length and height of the boom can be adjusted according to construction requirements. The products feature high working speed, good adjustment performance, and high efficiency. The hoist structure adopts 3-speed electric motor and single speed ratio redactor which can achieve heavy load at low speed and light load at high speed. The luffing system pull the pulley and changes amplitude at the level arm; the slewing system adopts planetary gear redactor with hydraulic torque limiting coupling, featuring high load bearing capability, smooth start, reliable work and windproof assembly performance. And The hoist boom adopts double rigid pull-rod to support. Haishan Tower Crane can be widely used in the construction of high-rise restaurants, residential buildings, high-rise industrial buildings, as well as warehouses and plants with large spans.