Rexroth A11VO 190 Axial Piston Variable Pump | LRDS Control | R902016434 & R902016435

A11VO 190 Axial Piston Variable Pump (LRDS Control)

Product Overview: The A11VO 190 series, specifically featuring the LRDS (Load Sensing with Pressure Cut-off) control, is a high-performance swashplate axial piston pump designed for open-circuit hydraulic systems. With a substantial 190cc displacement and a nominal pressure rating of 350 bar, it serves as the “intelligent heart” of heavy-duty machinery. By adjusting both flow and pressure to match actual load requirements, the A11VO190LRDS significantly minimizes energy dissipation and system heat, making it the premier choice for large cranes, excavators, and industrial power units.

Key Technical Advantages:

• LRDS Intelligent Logic: Integrated Load Sensing (LS) and Pressure Cut-off (DR) functions. The pump senses the pressure differential at the actuator and delivers only the required flow, ensuring maximum energy efficiency.

• Superior Suction Capability: The optimized internal flow path ensures high volumetric efficiency and prevents cavitation even at high rotational speeds.

• Through-Drive Flexibility: Equipped with a robust through-drive shaft, enabling the tandem mounting of additional pumps for multi-circuit configurations.

• High-Pressure Engineering: Rated for 350 bar nominal and 400 bar peak pressure, these pumps are built to withstand continuous heavy-duty cycles with an extended service life.

Specific Models and Technical Parameters: This product line includes specific configurations such as the A11VO190LRDS/11R-NZD12K84-S (Part No. R902016434) and A11VO190LRDS/11R-NZD12K02-S (Part No. R902016435). Key specs include a 190 cm³/rev displacement, SAE standard mounting flanges, and the high-performance NZD12 seal configuration.