Jacking and skidding of an LR-1991 container crane, Mexico
ALE has accomplished the jacking and skidding of an LR-1991 container crane, weighing 1,422t, inside the Altamira Port, Mexico.
The first stage of the operation involved jacking-up the crane 600mm using four 300t climbing jacks, eight 150t climbing jacks and four HEM600 transportation beams, in order to install the skidding system onto the container crane.
The next stage involved skidding the crane 150m from the assembly area to the operation area. In order to avoid the bollard at the end of the quay, the route was defined by two semi-curves. For this, ALE eight skid shoes, four push-pull units, four HEM600 transportation beams, skid tracks and spreader mats.
ALE arranged two skid shoes, one transport beam, skid tracks and spreader mats on each leg of the crane. The crane was then skidded 150m to the operation area.
The final stage consisted of jacking-down the container crane onto the rails using the same arrangement as the jack-up operation.