the invention proposes a novel drive with electrical power control for machines which have to execute cyclic movements with high accelerations . an electric motor drives a pump which , in turn , is connected directly to a cylinder . this arrangement has added to it a system of pressure accumulators and valves which give the system the property of an oscillator . the acceleration forces in the event of a cyclic movement near to resonance are then exerted largely by the pressure accumulators and the cylinders connected to these . this leads to a relieving of the electric motor and makes it possible to install lower powers on the machine or else , for the same power , achieve shorter cycle times of the machine .