​Hydraulic cylinder is an indispensable core component in the construction machinery industry, which plays an important role in various construction machinery equipment. In excavators, loaders, bulldozers and other equipment,

Working pressure refers to the pressure of the hydraulic cylinder under normal working condition. It is one of the important parameters of the equipment and has an important impact on the performance and service life of the equipment.

The hydraulic lifting device is a technical tool widely used in the storage tank industry to achieve the lifting and transportation of the storage tank by using the flow and pressure of the liquid. Hydraulic lifting device has many advantages and technical features, which are analyzed in detail in this paper.