Rexroth A10VD43 Main Pump | HA10VD43SR-1RS5-S | Excavator Double Hydraulic Pump

Rexroth A10VD43 Series Excavator Double Hydraulic Main Pump

Product Overview: The Rexroth A10VD43 series is a high-performance swashplate-type axial piston double variable pump, specifically engineered for compact mobile machinery, primarily 5 to 8-ton excavators. This series integrates two independent 43cc pumping units into a single, compact housing sharing one drive shaft. Renowned for its exceptional power-to-weight ratio and sensitive load-sensing capabilities, the A10VD43 series (e.g., HA10VD43SR) provides smooth and powerful drive for excavator travel, swing, and boom operations.

Key Technical Advantages:

• Efficient Tandem Power: Features a double pump design with a displacement of 43 cm³/rev per section. This architecture saves critical engine bay space while enabling high-efficiency synchronized movements through internal flow merging.

• Heavy-Duty High-Pressure Stability: Supports a rated operating pressure of 25 MPa (250 Bar) with peak cycles up to 31.5 MPa. Reinforced rotating groups and precision valve plates ensure sustained volumetric efficiency under grueling digging cycles.

• Precise SR Regulator Control: Models like A10VD43SR1RS5-972-5 are equipped with high-sensitivity SR regulators. These modulate displacement automatically based on load changes, preventing engine overload and maximizing fuel economy.

• OEM-Grade Compatibility: Suffixes such as 972-5 or 993-1 specify customized mounting flanges, gear pump couplings, and port configurations for specific brands like Kubota or IHI, ensuring a seamless “plug-and-play” installation.

Detailed Models & Parameters:

• Core Series: A10VD43 / HA10VD43 Series.

• Detailed Config Codes: HA10VD43SR-1RS5-S, A10VD43SR1RS5-972-5, A10VD43SR1RS5-993-1.

• Displacements: 43 cm³/rev + 43 cm³/rev (Double Pump).

• Pressure Ratings: Rated at 25 MPa (3625 PSI); Peak cycles up to 31.5 MPa (4568 PSI).

• Pump Type: Tandem Axial Piston Variable Pump for Excavators.