Hydrobush, an innovative active suspension system

Metalocaucho has developed an active suspension system consisting of a joint guidance with integrated hydraulic cushioning.

Metalocaucho “Hydro­bush”, a solution de­veloped and patented together with CAF, is an active sus­pension system which consists of an elastomer spring with integrated hydraulic damping.The main advan­tage is its active suspension technol­ogy, which enables significant in­crease to the train speed on curves; the whole bogie dynamics are im­proved through the use of a variable damping system, which can vary the operating parameters whilst the ve­hicle is in service (by modifying the hole diameter, fluid viscosity, etc). Other advantages are the freedom to twist in all directions and, as other conventional guiding bushes manufactured by MTC, it can also withstand high loads and tempera­tures acting on the front axle, due to its high endurance strength, while of COURSEisolating all vibra­tions.

The advantage for some Operators (especially in the UK) is the reduc­tion of TRACK access charges.