Components
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Under pressure
Piston accumulatorseries-production rangefor 250 / 350 bar

Under pressure – Liebherr piston accumulators work best under pressure

In addition to our hydraulic cylinders and power units, our product programme also includes piston accumulators.

The piston accumulator series-production range is available in pressure stages of 250 and 350 bar. The piston accumulators are flexible: they can be used in various mobile or stationary applications.

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Compatibility

You can choose from a range of combinational options within the piston accumulator series-production range. They are also flexible in terms of installation length.

We can also offer attachment parts on request.

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Compliantly certified with standards

As standard practice, the piston accumulators are tested against the PED 2014/68/EU standards and rules and the ASME Code Section VIII in force.

We can also offer further certification on request.

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Optimised service and maintenance plan

All our piston accumulators are designed to be particularly low-maintenance. In the event that you should require service however, Liebherr’s worldwide service network will be at your disposal at all times, everywhere.

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Features

  • Max. operating pressure: for 250 / 350 bar
  • Piston diameter: 100-360 mm
  • Maximum length: 5,000 mm
  • Oil volume up to 400 l
  • Lift speeds of up to 2 m/s
  • Operational temperature range: -20°C to +90°C*

*peak temperatures up to +100°C

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Piston accumulators in use

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Mechanical and plant engineering

  • Provision of energy in the event of a failure of the main energy source
  • Safety assessment of the connections of operational cycles in an emergency

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Agriculture and forestry

  • Equalisation of pressure surges in hydraulic lines
  • Avoiding damage and reducing maintenance work and downtime

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Mining

  • Safety equipment in case of the failure of the mining truck's braking system
  • Stored energy shall be release in the case of emergency operations
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Building construction and civil engineering

  • Short-term provision of volume flow and pressure
  • Reduction of energy and fuel consumption through efficient use

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Maritime applications

  • Diverse application possibilities from emergency operations to media isolation through ships and offshore platforms
  • Additional storage of energy to increase the efficiency of mobile harbour cranes
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Wind energy

  • Delivery of energy captured by wind turbines according to requirements
  • Adjustment of the rotary blades of the wind turbines to avoid damage

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