Hydraulic cylinders for stationary applications
Complex technical challenges at Liebherr are nothing out of the ordinary. Therefore, our hydraulic cylinders, too, can withstand high loads and are up to any task with stationary use. Alongside products tailored individually to the customer, Liebherr offers hydraulic cylinder series-production ranges that cater to the specific requirements of industrial customers according to the ISO 6022 standard.
Optimum availability and a long service life – these are the attributes by which hydraulic cylinders from Liebherr for stationary applications impress. We employ more than just a maintenance-friendly design here. The lowest possible friction and minimum wear are also important. A compact design and clever detail solutions contribute towards the quality of the cylinders in addition.
Those high-dynamic synchronizing cylinders are designed especially for applications requiring high speeds, precise control and the utmost reliability. Special design solutions such as smooth-running seal systems in combination with an internal leakage oil discharge guarantee reliable operation – for example in simulators.
Industrial cylinders based on ISO 6022
The Liebherr portfolio includes differential round-head cylinders for industrial applications. These were designed and manufactured according to the ISO 6022 standard.
The role of drive cylinders it to move tools. As a bolted version, the cylinders are suitable for applications with high speed and highest availability, such as plastic injection machines.
Pitch cylinders enable precise adjustment of rotor blades on wind turbines. Via a hydraulic cylinder in the plant, the rotor blades can be moved to a user-defined position.
Luffing cylinders are used e.g. in the maritime sector. They enable crane boom lifting there. The cylinderns are safety-relevant components. They therefore require approval inspection by classification organisations.
Standard product features: facts and figures
- Lift capacities up to 8,000 mm
- Nominal diameter up to 500 mm
- Operating pressures up to 450 bar
- Lifting speeds up to 1 m/s
- Temperatures -40°C to +80°C
- Coatings common in the market as well as (nickel) chrome, HVOF and others
- Corrosion protection for continental and also maritime environments
- Damping (from ground and/or rod side)
Innovative cylinder series for more flexibility
Liebherr offers two innovative hydraulic cylinder series for use in stationary applications. The 260-bar series offers maximum efficiency, while meeting the standard specifications of ISO 6022, and can be integrated flexibly in diverse applications, such as in steelworks, thanks to the numerous mounting options.
High standard in development and production
The high standard of the hydraulic cylinders is considered to be the highest priority at Liebherr. Sophisticated development processes and innovative simulation procedures – e.g. FEM analyses – represent the cornerstone. The use of modern measuring and test procedures and consistent process monitoring and quality inspection during production guarantee the reliability and durability of every single component in the cylinder.Engineering expertise - hydraulic cylinders