Hydraulic cylinders from Liebherr – innovation, performance, durability and quality

The cylinders of the 260 bar series-production range offer ultra-efficiency for applications in the mobile and stationary sector, without extensive additional requirements. The 28 basic versions can be configured with different types of mounting, oil connections and piston rod coatings.

The hydraulic cylinder series-production range according to ISO 6022 is designed to meet the corresponding standard specifications and is thus optimally tailored to the needs of customers in the industrial sector. The 24 basic versions are flexibly expandable with various options and are suitable for a large number of stationary applications.

In close cooperation with our customers, we develop hydraulic cylinders that are precisely tailored to individual requirements. Our development team designs sophisticated, durable and reliable products down to the last detail - technically precise and optimized for specific applications.

We use state-of-the-art methods, digital development tools and innovative technologies. This is how we create hydraulic cylinders that offer maximum performance and meet the requirements of today and tomorrow.

• Design: Detailed expertise in materials and manufacturing precision
• Powerful software:
  • 3D CAD systems
  • Use of simulation methods, such as the finite element method (FEM)
  • Testing and comparison of simulation results (pulse tests, endurance tests, etc.)
• Reversed Engineering: The cylinder is designed with sustainability and reparability in mind to extend its service life over several cycles
• Reliable sealing systems for every application

• Proactive development approach for alternative piston rod coatings
• Advanced protection against wear and corrosion to extend the service life of hydraulic cylinders
• Compliance with strict environmental regulations, such as the REACH regulation on the restriction of chromium VI in the future

• Monitoring the condition of the component
• Predictive maintenance: recognising component faults at an early stage

At our Oberopfingen site, we are able to manufacture hydraulic cylinders with a stroke of up to 8,000 mm. The entire production process takes place in-house: from the complete machining of the piston rods, highly efficient deep-hole drilling and precise honing of the tubes through to assembly, testing and robot-assisted painting.

Our modern and flexible machinery forms the basis for high-performance and durable hydraulic cylinders. The focus is always on economical processes, high efficiency and short throughput times.

Innovative strength

• Continuous improvement of processes
• Focus on creating reproducible and reliable processes

Modern welding technologies

• Robot-assisted welding systems
• Automatic clamping, centring and welding
• Friction welding process: High-strength, homogeneous material connection with the quality of a forged part, without te use of additives

Complete processing

• Piston rods and cylinder tubes are machined on state of-the-art CNC turning and milling centres
• Automatic tool change for short throughputtimes

Honing, skiving and roller burnishing

• Final machining of the cylinder running surfaces takes place on site
• Processing to the correct dimensions, shape and surface finish
• Machining is possible up to an internal diameter of 500 mm

Standardised assembly processes

• Large cylinder assembly system
• Test benches for series and large cylinders
• High-pressure cleaning of components

Robot painting system and large cylinder painting incl. sandblasting system

Logistics

• Packaging is ready for dispatch, according to the customer‘s requirements
• Organising customs clearance and transport with forwarding agents

The Liebherr service network is available worldwide, ensuring customers are never far from help. The high availability of original spare parts and the Liebherr-Reman programme significantly improve product lifecycles.

Our experienced service team is always on hand to help. We develop customised solutions that are tailored to your needs and offer long-term added value.

• Fast supply of spare parts
• Reliable repair and reconditioning (Reman programme)
• Support for the assembly and smooth commissioning of hydraulic systems
• Liebherr assembly bench with a customised design to maximise efficiency during repairs, including trainings for workshop personnel
• Practical training and certification for workshops carrying out repairs according to Liebherr quality standards
• Documentation: repair instructions and comprehensive information

• Focus on sustainability: Our assembly bench was designed to maximise the service life of our products. By enabling efficient repair and maintenance work using original spare parts, we guarantee the long-term use of our hydraulic cylinders in a way that saves resources.
• Design highlights of the LiCYB stationary:
  • Height and width adjustment with drive
  • Ergonomic one-person operation
  • The piston is released quickly and with little effort
  • Electric torque spanner up to 17,000 Nm
  • Excavator cylinders up to 100 tonne class can be repaired
• Our assembly benches are available across the globe and are already being used in Europe and North America.
• Our experienced service team carries out commissioning and training on client sites.