Rexroth A8VO55SR60R1-PZG05F48 Axial Piston Variable Double Hydraulic Pump

Heavy Duty Rexroth A8VO55SR60R1-PZG05F48 Hydraulic Pump With Integrated Charge Pump
 
Key Features
 

1. Load sensing + constant power combined control, energy-saving

2. Double pump design for multi-circuit coordinated action

3. High power density, compact flywheel housing mounting

4. Integrated charge pump & pressure relief valve

5. Low flow pulsation, stable working at high pressure

6. Long service life for continuous heavy-duty mobile work

 
Technical Data
 

 
 
Application
 

• Hydraulic main pump for medium excavators
• Mobile crane hydraulic system
• Rotary drilling rig / foundation drilling equipment
• Other custom heavy mobile construction machinery with multi-loop hydraulic requirement

 
Specification:
 

 
 
Competitive Advantages
 

1. Adopts load sensing + constant power combined control, automatically matches flow according to load changes, effectively reduces fuel consumption and system heat, outstanding energy-saving performance.

2. Integrated design with built-in charge pump and relief valve, compact flywheel housing mounting structure, fewer connecting pipelines, convenient installation and maintenance for mobile machinery.

3. High-strength friction pairs and optimized flow pulsation structure, stable output under 350bar long-term working pressure, strong overload resistance and long service life.

The Analysis for Rexroth A8VO Axial Piston Pump Commom Breakdown:

1. Insufficient output flow & weak action: Usually caused by worn cylinder block, valve plate or piston shoes, leading to internal leakage; also related to insufficient charge pump pressure.

2. Abnormal noise and vibration during operation: Main reasons include oil shortage, contaminated hydraulic oil, damaged bearing or loose fit of transmission spline.

3. High system temperature and pressure instability: Generally due to stuck LS control valve, faulty constant power regulator or excessive internal leakage of pump assembly.