Synchronous Lifting and Pushing System for Self-Elevating Cantilever Beam Drilling Platform

YIPU Hydraulic developed the Synchronous Lifting and Pushing System to enable precise and efficient repositioning of the cantilever beam with minimal manual intervention. The system integrates a group of heavy-duty, high-pressure double-acting jacks—comprising 4 units of 500-tonne, 4 units of 600-tonne, and 4 units of 700-tonne capacity—installed beneath the beam. Heavy-duty rollers, mounted on top of the jacks, engage the beam when extended. Additionally, two double-acting hydraulic cylinders, controlled by a centralized computer system, provide the pushing force to move the beam.

During operation, the lifting height and travel distance are preset on the controlling computer. With the press of a button, the jacks lift the beam in synchronized mode to a precision of up to 1 mm, while the pushing cylinders move it to the designated position. Once in place, the jacks lower the beam accurately, readying it for drilling operations. This system ensures precise positioning, enhances safety, and improves operational efficiency in the harsh marine environment.