During the long-term service of the bridge, some problems may arise. If the bridge bearings are not replaced in a timely manner, it will seriously threaten the safety of the bridge structure. The core link of bearing replacement cannot be separated from the strong support of industrial grade screw jacks.

After the construction team installed multiple large tonnage screw jacks on the bridge pier cover beam, the precise and synchronized lifting operation began. These jacks are like the "temporary backbone" of a bridge, firmly supporting the bottom of the main beam and slowly lifting the bridge span structure until it is completely detached from the old support, freeing up critical space for subsequent construction.

The most commendable feature is its pure mechanical self-locking characteristic. During the lengthy process of replacing bearings, even if the construction takes several days or even longer, the jack can always maintain a stable support state, completely eliminating the risk of accidental bridge drops. Compared to the potential leakage hazards of hydraulic equipment, the mechanical self-locking design of the screw jack is like installing a "safety lock" on the bridge, allowing construction personnel to not worry about support failure and building a strong safety line for the entire support replacement project.