Accumulators

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HYDAC bladder, piston and diaphragm accumulators for energy storage, pulsation dampening and shock absorption in hydraulic systems.

HYDAC accumulators: overview and purpose

HYDAC accumulators are essential hydraulic components designed to store hydraulic energy in the form of pressurized gas. They optimize hydraulic systems by improving efficiency, reducing pump workload and extending the lifespan of equipment.

By absorbing shocks, dampening pulsations and compensating for thermal expansion and fluid leakage, accumulators ensure smooth and reliable operation under varying load conditions.

  • energy storage and auxiliary power supply;
  • pulsation dampening;
  • shock absorption;
  • thermal and volume compensation.

Types and design features

HYDAC offers a wide range of accumulator designs tailored to pressure requirements, installation space and fluid compatibility. In each type a separating element keeps the hydraulic fluid and the pressurized gas (nitrogen) completely isolated, ensuring safe operation.

  1. Bladder accumulators — fast response and pulsation dampening;
  2. Piston accumulators — large volumes and heavy-duty applications;
  3. Diaphragm accumulators — compact design for small volumes.

The choice of accumulator type depends on the dynamics of the hydraulic circuit, the required response time and the volume of fluid to be stored or compensated.

Applications and industries

Thanks to their robust construction and high reliability, HYDAC accumulators are used across many industries and are designed for high pressures, temperature fluctuations and harsh operating conditions. They reduce noise, peak pump loads and the energy consumption of the hydraulic system.

  • mobile hydraulics and construction machinery;
  • metallurgy, machine tools and manufacturing equipment;
  • marine and offshore applications;
  • agricultural and forestry machinery.

See also

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