Hydraulic cylinders 350 bar series-production range

The Liebherr 350 bar series-production range gives customers a broad choice of flexible cylinder variants which have been proven under the toughest operating conditions. The use of standardised components means the new hydraulic cylinders and spare parts are quickly available despite the high degree of flexibility. The 350 bar series includes 40 basic variants for nominal diameter combinations of piston and piston rod.

Product range - overview

Types Differential hydraulic cylinders
Stroke up to 2,300 mm (90.55 in)
Installation length up to 3,100 mm (122.05 in)
Piston diameter 100 - 220 mm (3.94 - 8.66 in)
Piston rod diameter 65 - 150 mm (2.56 - 5.91 in)

Fields of application

Exemplary application: hydraulic excavator

Exemplary application: hydraulic excavator

Hydraulic cylinders of the 350 bar series are used, for example, within hydraulic excavators.

The hydraulic cylinders of the 350 bar series-production range are employed both in mobile applications and in various industrial applications. They are used wherever durable and robust products are needed for highly dynamic applications. Such applications include construction machinery, e.g. as hoist cylinder, stick cylinder or bucket cylinder for wheeled and crawler excavators.

Various options configurable

For each basic variant numerous options besides the stroke can be configured. Additionally, corresponding 3D models can be supplied for each variant.

  • Sensor technology
    The 350 bar series-production range is designed to allow the straightforward integration of pressure sensors and position transcducers. As a highlight, Liebherr offers the own developed LiView position transducer.

    Sensor technology

    The 350 bar series-production range is designed to allow the straightforward integration of pressure sensors and position transcducers. As a highlight, Liebherr offers the own developed LiView position transducer.

    LiView position transducer
  • Piston rod coating
    High quality chrome and nickel-chrome coatings are used as standard. Depending on the application, either a coating with normal resilience or one with increased resilience is used. A sea water coating is also available.

    Piston rod coating

    High quality chrome and nickel-chrome coatings are used as standard. Depending on the application, either a coating with normal resilience or one with increased resilience is used. A sea water coating is also available.

  • End of stroke cushioning
    For its hydraulic cylinders, Liebherr offers the option of an optimised cushioning system, which has proven its worth in practice on many occasions. The customer is able to choose between cushioning on piston and/or rod-side.

    End of stroke cushioning

    For its hydraulic cylinders, Liebherr offers the option of an optimised cushioning system, which has proven its worth in practice on many occasions. The customer is able to choose between cushioning on piston and/or rod-side.

  • Seals
    Liebherr uses a compact arrangement of seals and an innovative sealing system in the series to satisfy the most exacting of standards. A tandem sealing system consisting of a primary and a secondary seal is used for the rod seal. This relieves intermediate pressure and reduces the stick-slip effect.

    Seals

    Liebherr uses a compact arrangement of seals and an innovative sealing system in the series to satisfy the most exacting of standards. A tandem sealing system consisting of a primary and a secondary seal is used for the rod seal. This relieves intermediate pressure and reduces the stick-slip effect.

  • Video

    For the highest amount of flexibility possible, Liebherr offers an innovative range of cylinders for mobile and stationary applications. With the defined variants, hydraulic cylinders can be quickly configured for the respective application situation and dispatched in no time. View video

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    Products & technologies

    In close co-operation with our customers, we project innovative solutions for hydraulic cylinders, shock absorbers and hydraulic power units. The product portfolio impresses with great variety.