Where cyclical motions take place, hydraulic accumulators are able to reduce the installed power and thus increase energy efficiency. Our well-structured portfolio of bladder and diaphragm type accumulators meets the requirements of systems of all sizes and of all applications. Their convincing features are the long life cycles and sophisticated details. The exchangeable gas valves in bladder-type accumulators, for example, increase their maintenance- and repairfriendliness. Thanks to the extreme resistance of the bladders in Rexroth accumulators, the exchange intervals can be extended as well. Our hydraulic accumulators provide a crucial back-up for safe shut-downs in case of a power failure in plant construction and wind energy plant applications.