Rexroth A4CSG Series Pump | A4CSG355, A4CSG500, A4CSG750 | High Pressure Closed Circuit Pump | A4CSG750EPD

Rexroth A4CSG Series Heavy-Duty Closed Circuit Variable Piston Pumps

Product Overview: The Rexroth A4CSG series represents the pinnacle of power engineering for “closed-circuit” hydraulic systems. Specifically designed to withstand extreme continuous pressures and harsh offshore environments, this series covers massive displacements from 355cc (A4CSG355) to the extraordinary 750cc (A4CSG750). Featured models such as the A4CSG750EPD/30R, A4CSG500EPG/30R, and A4CSG355EPD/30R deliver colossal flow rates at a rated pressure of 350 Bar. With integrated auxiliary charge pumps, relief valves, and advanced electronic proportional control, the A4CSG is the premier choice for large marine winches, TBM (Tunnel Boring Machine) drives, and ultra-large industrial Hydraulic Power Units (HPU).

Key Technical Advantages:

• Integrated Closed-Loop Architecture: Features a built-in charge pump, high-pressure relief valves, and boost relief valves, significantly simplifying external piping and enhancing system safety.

• Cutting-Edge EPD/EPG Control: Employs electronic proportional modulation with pressure cut-off, ensuring millisecond displacement response and precise torque management under peak loads.

• Mining & Marine Grade Durability: Optimized for continuous S1 duty cycles with oversized reinforced bearings, providing industry-leading service life under high-flow and high-pressure fluctuations.

• Extraordinary Power Density: Delivers massive torque within a compact swashplate framework, effortlessly handling the instantaneous overloads of heavy engineering equipment.

• Customizable Specifications (e.g., S1326): Supports specialized configurations for shafts and interfaces, ensuring seamless integration with heavy-duty gearboxes and power trains.

Detailed Models & Parameters:

• Core Series: Rexroth A4CSG Series 30 (Closed Circuit).

• Model Keywords: A4CSG355, A4CSG500, A4CSG750, A4CSG/30R.

• Full Config Codes: A4CSG750EPD/30R-VZH35F994, A4CSG500EPG/30R-UZH85F994N-S1326, A4CSG355EPD/30R-VZB35FXX4D.

• Displacements: 355 cm³/rev, 500 cm³/rev, 750 cm³/rev.

• Pressure Ratings: Rated at 350 Bar (5100 PSI) continuous; Peak capability up to 400 Bar (5800 PSI).

• Rotation: R (Clockwise/CW); L (Counter-clockwise/CCW).

• Target Applications: Large marine winch drives, TBM cutterhead hydraulic systems, and heavy material handling equipment.