Hydraulic backstop cylinders are used on lattice boom cranes as a hydraulic means for preventing the boom from toppling backwards. In the final position of the jib (almost vertical), the cylinder is forcibly in-stroked and thereby builds up the necessary pressure to push the jib back again. They are therefore Category A safety components. A cylinder failure would result in the crane overturning. To accommodate the enormous mechanical forces, our hydro-storage cylinders are manufactured exclusively from high-strength steels.