Low-Noise A4VSO125 Rexroth Axial Piston Pump 225 L/min for Hydraulic Systems

Low-Noise A4VSO125 Rexroth Axial Piston Pump 225 L/min for Hydraulic Systems

Features:

1. Anti-cavitation design prolongs service life.

2. Compatible with various hydraulic oils (≤ ISO VG 680).

3. Pressure-compensated control options.

4. Built‑in exhaust silencing function.

5. Adaptive flow matching for load changes.

6. Axial force balancing design.

7. Constructed from high-strength materials to guarantee robust and durable components.

8. Automatic radial force balancing.

9. Compact external design facilitates space-saving installation in constrained environments.

10. Unidirectional automatic replenishment chamber.

Technical data:

Specifications:

Applications:

Competitive Advantage:

1. The combination of high‑temperature resistant seal compounds (operating range from -30 ℃ to +120 ℃) and wear‑resistant piston surface coatings allows the A4VSO hydraulic pump to perform reliably in both sub‑zero cold starts and high‑heat process conditions, as well as abrasive particulate environments; this dual protection strategy ensures minimal leak rates and reduces abrasive wear, extending service life in industries such as foundries, glass manufacturing, and heavy excavation where thermal extremes and contamination challenges are commonplace.

2. With a dynamic response time of 10 ms or less, the A4VSO piston pump enables virtually instantaneous flow and pressure adjustments during rapid cycling operations, guaranteeing precise actuation sequencing in high‑speed packaging machines, automated test rigs, and servo‑assisted forging presses; this quick responsiveness reduces overshoot and undershoot phenomena, enhances process repeatability, and supports advanced motion profiles required for Industry 4.0–enabled smart manufacturing environments.

3. The A4VSO axial piston pump’s compact, integrated design delivers exceptionally high power density—up to 30 kW per liter of displacement—enabling machine builders to achieve greater hydraulic power output within constrained envelope dimensions; this space‑saving attribute is crucial for mobile cranes, high‑performance marine thrusters, and aerial work platforms, where footprint reduction directly translates into enhanced maneuverability, reduced chassis weight, and lower transport costs.

The Analysis For Rexroth A4VSO Piston Pump Common Breakdown: 

1. Loose drive coupling causing misalignment: If drive motor coupling bolts loosen, the pump and motor shaft centerlines become misaligned, inducing cyclical uneven loads on bearings and seals. Over time, this leads to hydraulic leakage, abnormal noise, and vibration, shortening component lifespan. Maintenance should include verifying coupling bolt torque with a calibrated torque wrench and using lock washers, while ensuring coupling misalignment stays within ≤0.05 mm to maintain optimal alignment and protect the axial piston pump’s mechanical integrity.

2. Return oil seal failure contaminating bearings: A compromised return‑line seal allows contaminated oil to enter the bearing chamber, quickly polluting lubricant and accelerating bearing wear. Routine replacement of return‑line filters and shaft seals, combined with inline particle monitoring, can effectively prevent such failures. Maintaining clean oil around the axial piston pump’s bearings preserves proper lubrication and averts premature mechanical damage.

3. External vibration causing piston‑to‑bore impact: If the pump mounting is insecure or pipe clamps are inadequate, external vibration can transmit through the housing to the pistons, causing them to slam against cylinder walls. This results in scoring and pitting, increasing leakage and reducing efficiency. Reinforcing pump mounts and employing flexible hose connectors to isolate vibrations, along with low‑noise, vibration‑damping flanges, mitigates this issue and protects the axial piston pump from mechanical impact damage.