A10VSO28DFR1 Rexroth Piston Pump Cast Iron for Construction Machinery Systems

A10VSO28DFR1 Rexroth Piston Pump Cast Iron for Construction Machinery Systems

Features:

1. Variable axial piston pump with swashplate design for hydrostatic drives in open circuits.
2. Flow proportional to drive speed and displacement.
3. Infinitely variable flow via swashplate angle adjustment.
4. Dual drain ports for enhanced heat dissipation and leakage control.
5. Excellent suction performance under low inlet pressure.
6. Low noise level for improved operational environment.
7. Long service life with reduced maintenance intervals.
8. High power-to-weight ratio for energy efficiency and portability.
9. Versatile control modes (constant pressure, flow, power, etc.).
10. Short control response time (millisecond-level).

Technical data:

Specifications:

Applications:

1. The axial piston pump adapts flow rates from 15-45L/min via load-sensing control in rock drillers, stabilizing percussion frequency during sudden hardness changes. With hardened cylinder blocks resistant to abrasive contaminants, this hydraulic pump extends MTBF to 4,000 hours in dusty mining operations, reducing maintenance costs in hard-rock excavation.

2. In hydraulic jumbos, the piston pump's dual-flow design delivers 120kN thrust force with 0.05mm positioning accuracy via electronic flow control. Integrated pressure cutoff instantly switches to 28MPa safety pressure during rod jamming, preventing impact damage to drill bit threads in complex geological conditions.

3. For two-platen clamping systems, this hydraulic pump maintains ±0.8% mold force accuracy with closed-loop pressure control, achieving 0.1s response time. Its energy-saving unloading circuit reduces 60% power consumption during dwell phase, ideal for precision thin-wall PC molding requiring axial piston pump reliability.

4. In multi-cavity micro-molding, the piston pump coordinates via CAN bus to control 8 injection points independently (0.5-25MPa). With low-inertia swashplate enabling 25 pressure transitions in 0.3s, this axial piston pump achieves flash-free molding for medical connectors with micron-level tolerances.

Competitive Advantage:

1.The axial piston pump achieves ±0.8% flow accuracy with closed-loop electro-hydraulic control, delivering 0.1s dynamic response for metallurgical vibration systems. With 30% increased swashplate bearing capacity and nitrided piston assemblies, this hydraulic pump extends service life to 12,000 hours under 280bar continuous operation.

2. Featuring bimetallic cylinder blocks with 1.2×10⁻⁶/K thermal deformation coefficient, this piston pump maintains >94% volumetric efficiency from -20℃ to 90℃, ideal for polar exploration equipment requiring stable performance in 70℃ temperature differentials.

3. Intelligent power limitation adjusts swashplate angle via real-time torque monitoring, preventing 35% energy waste in mining overload conditions. This hydraulic pump boosts system efficiency to 91%, saving approximately ¥180,000 annually in electricity costs (24/6 operation basis).

4. Integrated noise-reduction valves limit pressure ripple to ±2bar with 8dB(A) noise reduction, meeting ISO 4412-1 standards. This axial piston pump enables 65dB silent operation for medical equipment while maintaining 0.02mm motion accuracy.

The Analysis For Rexroth A10V(S)O Axial Piston Pump Common Breakdown:

1. Swashplate bearing wear causes ±15% flow fluctuation, often due to >70% blocked lubrication grooves. Regular 2,000-hour cleaning of axial piston pump's forced lubrication system with ISO 18/16/13 oil cleanliness monitoring can restore 85% bearing lifespan.

2. Sudden housing temperature spike above 95℃ indicates cooler flow below 60% rating. Verify tandem pump shaft seals and auxiliary gear pump pressure ≥4.5bar, ensure heatsink airflow >2.5m/s for hydraulic pump thermal stability.

3. 0.8s electro-proportional valve lag correlates with 0.3mm LVDT EMI deviation. Install RC filters (100Ω+0.1μF) on coils and maintain >300mm separation between signal/power cables in piston pump control systems.

4. 12% volumetric efficiency loss indicates piston-cylinder wear from water contamination >800ppm. Install NAS Class 7 suction filters and vacuum dehydrators to maintain <200ppm moisture for hydraulic pump restoration.