Rexroth A10VSO Variable Axial Piston Pump Cast Iron Housing Multi-Control Options
Features:
1. Low noise level for improved operational environment.
2. Long service life with reduced maintenance intervals.
3. High power-to-weight ratio for energy efficiency and portability.
4. Versatile control modes (constant pressure, flow, power, etc.).
5. Short control response time (millisecond-level).
6. Through-drive structure for multi-pump combination systems.
7. Continuous operating pressure up to 280 bar, peak pressure 350 bar.
8. High volumetric efficiency (>95%) minimizing energy loss.
9. ISO/SAE standard flange interfaces for installation flexibility.
10. Drive shaft withstands combined axial and radial loads.
Technical data:
| Size | NG | 28 | 45 | 71 | 88 | 100 | 140 |
| Displacement, geometric, per revolution | | Vg max | cm3 | 28 | 45 | 71 | 88 | 100 | 140 |
Rotational speed
maximum | at Vg max | nnom | rpm | 3000 | 2600 | 2200 | 2100 | 2000 | 1800 |
| at Vg <Vg max | nmax perm | rpm | 3600 | 3100 | 2600 | 2500 | 2400 | 2100 |
Flow
at Δp = 280 bar | at nnom and Vg max | qv max | l/min | 84 | 117 | 156 | 185 | 200 | 252 |
| at nE= 1500 rpm and Vg max | qvE max | l/min | 42 | 68 | 107 | 132 | 150 | 210 |
| Power | at nnom, Vg max | Pmax | kW | 39 | 55 | 73 | 86 | 93 | 118 |
| at nE= 1500 rpm and Vg max | PE max | kW | 20 | 32 | 50 | 62 | 70 | 98 |
Torque
at Vg max and | Δp = 280 bar | Tmax | Nm | 125 | 200 | 316 | 392 | 445 | 623 |
| Δp = 100 bar | T | Nm | 45 | 72 | 113 | 140 | 159 | 223 |
Rotary stiffness
of drive shaft | S | c | Nm/rad | 22317 | 37500 | 71884 | 71884 | 121142 | 169437 |
| R | c | Nm/rad | 26360 | 41025 | 76545 | 76545 | | |
| U | c | Nm/rad | 16695 | 30077 | 52779 | 52779 | 91093 | |
| W | c | Nm/rad | 19898 | 34463 | 57460 | 57460 | 101847 | 165594 |
| Moment of inertia for rotary group | JTW | kgm2 | 0.0017 | 0.0033 | 0.0083 | 0.0083 | 0.0167 | 0.0242 |
| Maximum angular acceleration | α | rad/s² | 5500 | 4000 | 2900 | 2600 | 2400 | 2000 |
| Case volume | V | l | 0.7 | 1 | 1.6 | 1.6 | 2.2 | 3 |
| Weight without through drive (approx.) | m | kg | 18 | 23.5 | 35.2 | 35.2 | 49.5 | 65.4 |
| Weight with through drive (approx.) | m | kg | 19.3 | 25.1 | 38 | 38 | 55.4 | 74.4 |
Specifications:
| Warranty | 1 Year |
| Specification | SY-A10V(S)O |
| Place of Origin | China |
| Type | Rexroth axial piston pump |
| Color | Available any color |
| HS Code | 8413503190 |
| Application | excavator, loader, construction machinery |
| Constant pressure | 280 bar |
| Maximum torque | 623 Nm |
| Displacement | 28-140cc |
Applications:
1. In large hydraulic excavators, this axial piston pump delivers 280 bar continuous pressure to power boom and bucket cylinders. Its load-sensing control dynamically adjusts flow based on joystick inputs, while the through-drive integrates gear pumps for pilot control, improving coordinated movements and reducing energy consumption by 15%.
2. When powering concrete pump truck booms, the hydraulic pump's rapid response (<50ms) enables precise multi-section boom deployment. Modular design allows quick component replacement, while optimized suction lines prevent cavitation during high-altitude operations, ensuring reliable continuous pouring.
3. For combine harvester header lifting systems, the piston pump's dual drain ports effectively manage case pressure. Combined with proportional valves, it achieves millimeter-level height adjustment. High power density saves space while ensuring durability in rough field conditions.
4. When powering tractor hydraulic hitches, the axial piston pump's flow-pressure compound control adapts to various implements. Low noise (<75dB(A)) improves operator comfort, while hardened surfaces extend service life beyond 10,000 hours, reducing maintenance.
Competitive Advantage:
1. Wide viscosity range (15-1000cSt) and temperature tolerance (-25℃~80℃) ensure reliable marine deck operations in arctic and tropical conditions.
2. Modular design enables 60% faster maintenance through interchangeable DR/DFR/ED controls, with 85% component commonality in industrial power units.
3. <75dB noise emission meets ISO 4412 standards for port cranes in noise-sensitive areas, minimizing acoustic pollution.
4. DFLR constant power control auto-balances hydraulic output for wind turbine pitch systems, achieving 0.3sec blade adjustment during wind gusts to boost energy yield 15%.
5. 100% through drive capability allows tandem auxiliary pump installation, delivering 210L/min main flow with auxiliary lubrication, increasing power density 40% over conventional designs.
The Analysis For Rexroth A10V(S)O Axial Piston Pump Common Breakdown:
1. Abnormal Noise: Laser align couplings if radial deviation >0.05mm. Replace SKF 6316-C3 bearings when clearance >0.1mm, lubricate with NLGI 2 grease.
2. Oil Leakage: Replace cracked V-seals with FKM material if service life <5000h. Laser cladding required for >0.3mm sand holes on port plate, polished to Ra0.4μm.
3. Motor Overload: Check relief valve setting if backpressure >12MPa. Clear >15μm contaminants causing piston seizure and 30% torque spike.
4. Variable Failure: Ultrasonic clean control circuits if diameter <4mm. Replace EPDM seals when O-ring hardness exceeds 90 Shore A.
5. Suction Deficiency: Upgrade to DN40 pipes if flow velocity >4m/s in DN25 lines. Install booster pump at vacuum >0.08MPa.
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Rexroth A10VSO Variable Axial Piston Pump Cast Iron Housing Multi Control Options Images
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