Equipments

The gantry lifting system is a mobile, self-propelled, variable-height hydraulic lifting frame. It is controlled primarily from a remote, self-contained power module positioned away from the gantries. The gantries are designed to be operated on smooth surfaces such as steel plates or tracks and must be within one degree of the true level for proper and safe operation. A side shift mechanism allows the system to move the load in three directions. There are four jacking units, each supported on wheels, with a vertical lift cylinder and a vertical lift boom mounted on top. These units are self-propelled. The cylinders and booms of these jacking units extend or retract to lift or lower the load. The jacking units can move longitudinally to transport loads horizontally.

The lift cylinders are telescopic, multiple-stage, and double-acting (pressure extend, pressure retract). They’re designed to eliminate the use of troublesome hose reels. Double-locking valves are built into the lower base of the cylinders and are not subject to any hydraulic hose or tubing failures. An equalized pressure system is created by matching the load rating with the maximum system pressure, ensuring they cannot be overloaded. If a load exceeds the specified capacity, the system will not allow the gantry to lift the load. The lift telescopic boom consists of nested structural boxes made of square steel tubing with solid steel bars attached on two sides.