Mobile lifting columns with retractable / extendable claws are more suitable for the lifting up of complete trains.
Synchronizations up to 36 jacks are feasible, making possible to lift up a complete train with an isoniveling tolerance of +/- 5 mm for an installation of 400 m.
These columns are also designed to be moved laterally on rails, either manually or in a motorized way.
In the same way, claws can be moved either electronically or manually.