The suspension cylinder with integrated piston accumulator developed by WEBER-HYDRAULIK is used as a chain tensioner in crawler chassis. The harsh conditions of the application mean that the components would be exposed to extreme conditions and heavy wear. This applies in particular to external storage devices that have to be connected to the vehicle’s electrical wiring. For this reason, an accumulator integrated into the cylinder has been developed, which is thus protected from the harsh environmental conditions. In addition, the system is particularly light due to the omission of components.