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Hydraulic accumulators - Hydraulic Spring


Thanks to its construction, each hydraulic accumulator can be assimilated to a spring with the great advantage that the force generated by the spring (precharge pressure P0) can be adapted to the needs, at any time and in a very simple way.


Emergency stop


On maintenance equipment, transport platforms, large vehicles, etc., an accumulator connected to the suspension receiver performs the function of a shock absorber. Due to its constructive nature, this suspension system is well suited to be set according to transport / load requirements. Through dedicated nitrogen circuits the elastic properties on the machine can also be varied by acting on the accumulator precharge..




Traction and load-bearing cables of cable cars and chairlifts must be tensioned within very limited tolerances. the length of the cables can however vary during the passage of the cabins or due to temperature oscillations. The accumulators compensate for these elongations and thus maintain the tensioning in the desired tolerances.


Machine tools


The weight of a machining head of a machine tool can be counterbalanced by an accumulator that has no inertia and has small dimensions. Compared to the traditional counterweight with chain and counterweight, the hydraulic one with accumulator and cylinder offers the following advantages: Weight saving, lower load on the foundations, less bulk, less transport difficulty and application flexibility obtainable by varying the precharge pressure.


Supply oil lubrication


Mechanical shocks, which occur or overcome irregularities or encounter obstacles, for example in snow plows when they encounter a hidden obstacle, are absorbed by the accumulators. In this way a safer and more precise load stop is achieved, a greater transfer speed and the risk of accidents is reduced by increasing the useful life of the vehicle.


The hydraulic accumulators is an essential component for the optimum operation of a hydrauliccircuit. In hydraulic circuits, theaccumulator enables:
Energy Storage: saves energy withoutloss and redistributes when required therefore reducing installed power.
Pressure compensation: absorbs pressure spikesfrom pumps or other components to control pressure and flow-rates in ahydraulic circuit.
VolumeControl: absorbs fluid volume variations induced by temperaturechanges in a closed hydraulic circuit and maintains a rated pressure.
MaintainsFluid Flow Rate: an accumulator can maintain the fluid flowrate in case of pump failure and can also be used as a mobile fluid reserveunder pressure.
Emergency EnergyStorage: in case of failure of the main energy source, an accumulator canprovide sufficient energy to complete an operation or to realize a fullhydraulic cycle.
Preventsmixing of fluids: Transfer of energy from a fluid to anotherfluid without any risk of mixing.
Shock absorber: suppresses shocks andvibrations in hydraulic systems of lifting vehicles (e.g. Forklift trucks) andmaintains real suspension of the load on a gas spring.



Comer/Parker Accumulator Service Center


From 2019 COMER is officially the Parker / olaer Accumulators service center. Comer has all the appropriate equipment and large spare parts warehouse to perform checks on the preloads, internal bag replacements and interventions in general on the whole range of accumulators in production both Parker and Olaer.



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