Bosch Rexroth Expands Cartridge Valve Size Range

Hydraulic systems in industrial and mobile equipment increasingly require higher flow rates, efficiency, and durability under demanding operating conditions. In this context, Bosch Rexroth is expanding its LC-8X 2-way cartridge valve series with new nominal sizes 80, 100, and 125, to be presented at IFAT 2026 (May 4–7), in Munich, Germany.

Extending flow capacity for hydraulic systems
The addition of larger nominal sizes allows the LC-8X series to support applications with higher flow rates, particularly in hydraulic circuits used for directional control, pressure regulation, and combined functions. The valves are designed for operating pressures up to 450 bar, enabling their use in high-load industrial environments such as water management, heavy machinery, and process systems.

An integrated stem seal is included as standard to prevent gap filtration, supporting consistent sealing performance. The valve components are engineered to maintain functionality and tightness over 10 million load cycles at maximum switching capacity, indicating suitability for long-duty-cycle operations.

Reduced pressure losses and energy demand
The LC-8X series incorporates a flow-optimized internal geometry that reduces pressure losses compared to earlier generations, including the LC-6X (sizes 80 and 100) and LC-2X (size 125). Lower pressure losses directly reduce heat generation within hydraulic circuits, which in turn decreases cooling requirements.

A friction-optimized piston design further limits internal leakage and reduces energy losses. These changes contribute to improved overall energy efficiency, particularly in systems operating continuously or under variable loads.

Standardization and backward compatibility
The valve design follows a standardized architecture across sizes, simplifying system integration and engineering processes. This standardization supports faster project planning, reduced installation complexity, and easier maintenance.

The LC-8X series remains compatible with previous generations, allowing reuse of existing covers except in configurations with stroke limitation. This backward compatibility reduces the need for system redesigns and supports retrofitting in existing hydraulic installations.

Material efficiency and packaging considerations
In addition to operational efficiency, the valves are packaged in shock-resistant round containers made from recycled materials. This reflects incremental changes in resource usage without altering the technical performance of the components.

Edited by Aishwarya Mambet, Induportals Editor, with AI assistance.

www.boschrexroth.com