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Series-production range according to ISO 6022

Intelligent in stationary applications

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The production range at a glance

The hydraulic cylinder series-production range according to ISO 6022 offers industrial customers a portfolio of cylinders that are specifically tailored to their needs. The installation dimensions and mounting options are based on ISO standard specifications. Flexible configuration and diverse options mean that the cylinder series also offers maximum customisation for every application.

Wide variety of variants

The series-production range contains a total of 24 basic rated diameter variants for the piston and piston rod combination and thus even two dimensions exceeding the standard.

Applications

The intelligent hydraulic cylinder series-production range according to ISO 6022 can be equipped with various options such as proximity switches and position transducers.

Worldwide service network

Enjoy the worldwide service network of the Liebherr Group.

    
        

Product range at a glance

Table is scrollable
Type Differential cylinders
Stroke lengths Up to 2,700 mm
Piston diameter 63 - 320 mm
Piston rod diameter 40 - 220 mm
        
    

For use anywhere

The hydraulic cylinder series-production range according to ISO 6022 is suitable for use in stationary applications where they can withstand both static and dynamic loads. In the paper and abrasive blasting industry as well as in automation and production technologies, machines are as much a part of the application spectrum as machine tools.

These hydraulic cylinders are used in the rolling mill of steelworks, for example. They can be used as interchangeable tool cylinders and adjusting cylinders.

    
        
  • Adjusting cylinders

  • Interchangeable tool cylinders

        
    


    

Technical designs to fit your needs

  • Sensor technology
  • Coating
  • Cushioning
  • Seals
  • Mounting types
  • Media connections

Sensor technology

To perform a variety of control tasks, it is necessary to be able to accurately capture, monitor and control the linear movements and behaviour of hydraulic cylinders. For this reason, the series-production range according to ISO 6022 is designed so that measuring couplings, proximity switches and position transducers can be selected as options. Liebherr uses products from well-known manufacturers or according to customer requirements.

Coating

The standard coating is a high-quality single chromium layer with a thickness of 25 μm (± 5 μm). For higher corrosion or impact protection requirements, a hardened piston rod with double chrome coating is available. This coating ensures a minimum of 96 hours in the acetic acid salt spray test (AASS) according to DIN EN ISO 9227 rating 10.

Cushioning

Retraction to end positions is often controlled and smooth, especially in highly dynamic applications. Liebherr also offers the option of an adjustable cushioning system. Customers can choose between bottom- and/or rod-side cushioning. The system ensures jolt-free and delay-free starting.

Seals

Seals are very important for the reliability of hydraulic cylinders. With a compact sealing arrangement and an innovative sealing system, Liebherr also meets the highest of demands with this series. Only high quality, low-friction gaskets are used by default. The rod seal also uses a proven tandem sealing system consisting of primary and secondary seals.

Mounting types

To be compatible with the wide variety of hydraulic cylinder installation situations, the series-production range according to ISO 6022 has six possible types of mounting: Swivel eye on the bottom side (MP3), joint eye on the bottom side (MP5), round flange on the head side (MF3), round flange on the bottom side (MF4), pivot pin mounting (MT4) and foot mounting (MS2). A thread is used for connection to the piston rod. Optionally, a suitable joint head can also be pre-assembled.

Media connections

The standard oil connection in the series-production range according to ISO 6022 is an inch-sized threaded connection. Depending on customer requirements, American UNF threaded connections, metric threads or PSI-SAE connections are also possible.

    

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