| Quantity: | |
|---|---|
A4FO500
Rexroth
A4FO500 Axial Piston Variable Pump – Ultra-High Flow for Extreme Power Demands
The A4FO500 represents the pinnacle of high-capacity variable displacement pump technology. Designed for the most demanding open-circuit hydraulic systems, this large-bent axis pump delivers an exceptional combination of ultra-high flow rates, intelligent control, and robust durability. It is engineered to serve as the primary power source for the world's largest and most powerful mobile and industrial machinery.
Primary Applications & Equipment:
This pump is specifically designed to meet the extreme hydraulic power requirements of:
Mining & Heavy Construction: Large hydraulic excavators (50+ tons), draglines, mining shovels, and heavy-duty dump truck bodies.
Marine & Offshore: Deck machinery (winches, cranes), propulsion systems for work vessels, and offshore hydraulic power units.
Forestry: High-capacity harvester and forwarder heads, along with the main drive systems of the largest forestry machines.
Industrial Processes: Large-scale hydraulic presses (forging, molding), test benches for major components, and heavy industrial winches.
Special Heavy Machinery: Tunnel boring machines (TBMs), pile driving rigs, and other mega-scale engineering equipment.
Core Technologies & Design Features:
Large-Bent Axis Design: Leverages the highly efficient bent-axis principle, scaled to an ultra-high displacement of 500 cm³/rev. This design inherently provides excellent efficiency, high power density, and superior contaminant tolerance under extreme loads.
Intelligent Variable Displacement: Features a high-performance, electro-hydraulically controlled displacement mechanism (e.g., proportional solenoid control). This enables precise and dynamic flow regulation, ideal for integration into advanced Load Sensing (LS) or Pressure Compensated systems, optimizing fuel efficiency and machine responsiveness.
Ultra-High Flow & Power: Engineered to deliver massive flow volumes necessary to drive multiple large actuators or high-torque, high-speed motors simultaneously, providing unparalleled hydraulic power in a single-pump package.
Robust Construction for Extreme Duty: Built with reinforced casings, oversized heavy-duty bearings, and hardened components to withstand continuous operation at maximum pressure and the intense vibrations typical in heavy machinery applications.
Advanced Control & Monitoring Ports: Equipped with standard ports for pressure feedback, case drain, and pilot pressure, allowing for seamless integration into complex electronic control architectures for system optimization and health monitoring.
Through-Drive Compatibility: Designed with a robust through-drive shaft, enabling the combination with additional pumps (fixed or auxiliary) to create multi-circuit systems for highly complex machine functions.
Engineered for Maximum Uptime:
The A4FO500 is built for reliability in the most challenging environments. Its design prioritizes serviceability and long component life, ensuring maximum operational availability and a lower total cost of ownership for critical, high-value equipment.
Key Specifications (Typical):
Displacement: 500 cm³/rev (Maximum)
Maximum Operating Pressure: Up to 350 bar (~5075 psi) continuous; higher peak pressures available.
Control Options: Electro-hydraulic proportional control (e.g., for LS systems) is standard, with other control types (HD, HW) available to meet specific system requirements.