Collett & Sons Ltd. recently finished its first project using an Enerpac JS-250 Jack-Up system, where it installed a 100-tonne Siemens steam turbine SST-600 and a 60-tonne generator at an incinerator plant in the U.K. Working within tight space restrictions, the four tower Jack-Up system lifted the power generation plant equipment to a height of 4.5 meters, allowing it to be easily skidded into position.
The Enerpac JS-250 Jack-Up system is a 1,000-tonne capacity multi-point, synchronous lifting system with self-contained hydraulics in each unit for uncluttered work areas. Loads are lifted in increments as steel barrels are stacked together to form lifting towers. Using Collett’s SPMT, the 100-tonne Siemens steam turbine and the 60-tonne generator were maneuvered on the plant site and positioned above the Jack-Up units at each corner of the load. Following the 4.5-meter lift, Collett’s skidding systems allowed for the generator and steam turbine to be skidded for 14 meters into final position.
“The Enerpac Jack-Up system is perfect for this kind of job,” says Lincoln Collett, technical director, Collet & Sons Ltd. “We considered a gantry, but there was no space to move the gantry forward to position the turbine and generator. The combination of the Jack-Up’s synchronized lift and skidding worked very well.”