Enerpac Self-Erecting Tower (ESET) Lifts Petrochemical Hydrocracker Vessels
Using strand jacks connected to the hydrocracker vessel, the ESET lifted each vessel and accurately positioned them accordingly. Compared to larger ringer cranes, the ESET provided a smaller footprint, faster mobilization time and lower transportation costs.
Skid tracks under the base frame distribute the footprint load
Only two small cranes are required to commission the entire ESET
The topside can slide sideways for easy positioning of a lifted object
Strand Jacks are used to maneuver the tower along the skid tracks
Compared to cranes, the ESET occupies a limited amount of ground.
Two advanced PC-Control systems manage the mast lifts from each corner, with an average speed of 3 meters per hour, within a synchronous tolerance of less than 3 mm.