In thermal power and nuclear power engineering construction, Sichuan tower crane is mainly used in metal structure workshop, generator unit installation and cooling tower, conventional island, nuclear island and other concrete pouring construction. In the application of these projects, Sichuan tower crane has the following characteristics: heavy lifting, smooth operation, rapid and accurate in place. The three main mechanisms of tower crane are frequency conversion and intellectualized stepless speed regulation. The walking mechanism adopts soft start technology. The equipment has the characteristics of stable operation, rapid and accurate positioning, hovering in the air, heavy load and low speed, light load and high speed. The equipment has the characteristics of high free height, large coverage, small blind spot, and one machine with multiple functions. In the process of product design and manufacture, the lifting capacity of lifting mechanism is fully utilized, which has the characteristics of large lifting capacity. Most other cranes (e. g. crawler crane) can be completed by themselves to achieve a multi-purpose machine. High safety and good operability. Tower crane safety device adopts mechanical and digital dual, independent protection device; in high-end products equipped with automatic lubrication, automatic diagnosis and human-machine dialogue function of intelligent system, product operability and operational comfort is extremely high.