Cylinders of stage hoisting

The unique staggered lifting system allows the load to be lifted to a height considerably exceeding the stroke of the rod and to be locked in the lifted position for a long period of time. The jack provides a high lifting height with relatively small dimensions. The jack is equipped with a floating support to reduce radial loads on the rod. The principle of operation of the hydraulic jack stepwise lifting: lift the load on the value of the stroke of the rod and set the cage on the body of the jack then lower the load on the cage, at the time of the reverse stroke of the piston, then the rod is set on the stand and repeats the lifting of the load. When there is a gap between the lifted structure and the first cage installed on the jack, the second cage can be installed and repeat the cycle.