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Construction Machinery Piston Pump 350 Bar Pressure & Heavy-Duty Application Guide
Features:
1. Cross-port sensing for precise load feedback
2. Multi-pump configuration capability (up to triple pumps)
3. Case drain pressure limitation (max 2 bar)
4. Fast response control (step response time <150 ms)
5. Dynamically balanced rotating group (up to 3000 rpm)
6. Case-hardened critical components (HRC 60+)
7. SAE standard mounting flanges (SAE J744 compliant)
8. Leakage monitoring ports with integrated case drain channels
9. Energy recovery optimization for hybrid systems
10. Global certifications (CE/UL/CCC compliant)
Technical data:
Size | NG | 40 | 60 | 75 | 95 | 130 | 145 | 190 | 260 | ||
Geometric displacement, per revolution | Vg max | cm3 | 42 | 58.5 | 74 | 93.5 | 130 | 145 | 193 | 260 | |
Vg min | cm3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
Maximum rotational speed | at Vg max | nnom | rpm | 3000 | 2700 | 2550 | 2350 | 2100 | 2200 | 2100 | 2000 |
at Vg ≤ Vg max | nmax | rpm | 3500 | 3250 | 3000 | 2780 | 2500 | 2500 | 2100 | 2300 | |
Flow | at nnom and Vg max | qv | l/min | 126 | 158 | 189 | 220 | 273 | 319 | 405 | 468 |
Power | at nnom, Vg max and Δp = 350 bar | P | kW | 74 | 92 | 110 | 128 | 159 | 186 | 236 | 273 |
Torque | at Vg max and Δp = 350 bar | M | Nm | 234 | 326 | 412 | 521 | 724 | 808 | 1075 | 1448 |
Rotary stiffness drive shaft | Z | c | kNm/rad | 88.9 | 102.4 | 145.8 | 199.6 | 302.5 | 302.5 | 346.2 | 686.5 |
P | c | kNm/rad | 87.5 | 107.9 | 143.1 | 196.4 | 312.4 | 312.4 | 383.2 | 653.8 | |
S | c | kNm/rad | 58.3 | 86.3 | 101.9 | 173.7 | 236.9 | 236.9 | 259.8 | 352 | |
T | c | kNm/rad | 74.5 | 102.4 | 125.6 | 148.3 | ‒ | ‒ | 301.9 | 567.1 | |
Moment of inertia of the rotary group | JTW | kgm2 | 0.0048 | 0.0082 | 0.0115 | 0.0173 | 0.0318 | 0.0341 | 0.055 | 0.0878 | |
Maximum angular acceleration | α | rad/s² | 22000 | 17500 | 15000 | 13000 | 10500 | 9000 | 6800 | 4800 | |
Case volume | V | L | 1.1 | 1.35 | 1.85 | 2.1 | 2.9 | 2.9 | 3.8 | 4.6 | |
Weight (without through-drive) approx. | m | kg | 32 | 40 | 45 | 53 | 66 | 67 | 95 | 125 |
With charge pump (A11VLO)
Size | NG | 130 | 145 | 190 | 260 | ||
Geometric displacement, per revolution | Vg max | cm3 | 130 | 145 | 193 | 260 | |
Vg min | cm3 | 0 | 0 | 0 | 0 | ||
Maximum rotational speed | at Vg max | nnom | rpm | 2500 | 2500 | 2500 | 2300 |
at Vg ≤ Vg max | nmax | rpm | 2500 | 2500 | 2500 | 2300 | |
Flow | at nnom and Vg max | qv | l/min | 325 | 363 | 483 | 598 |
Power | at nnom, Vg max and Δp = 350 bar | P | kW | 190 | 211 | 281 | 349 |
Torque | at Vg max and Δp = 350 bar | M | Nm | 724 | 808 | 1075 | 1448 |
Rotary stiffness drive shaft | Z | c | kNm/rad | 302.5 | 302.5 | 346.2 | 686.5 |
P | c | kNm/rad | 312.4 | 312.4 | 383.3 | 653.8 | |
S | c | kNm/rad | 236.9 | 236.9 | 259.8 | 352 | |
T | c | kNm/rad | ‒ | ‒ | 301.9 | 567.1 | |
Moment of inertia of the rotary group | JTW | kgm2 | 0.0337 | 0.036 | 0.0577 | 0.0895 | |
Maximum angular acceleration | α | rad/s² | 10500 | 9000 | 6800 | 4800 | |
Case volume | V | L | 2.9 | 2.9 | 3.8 | 4.6 | |
Weight (without through-drive) approx. | m | kg | 72 | 73 | 104 | 138 |
Specifications:
Warranty | 1 Year |
Specification | SY-A11V(L)O |
Place of Origin | China |
Type | Rexroth axial piston pump |
Color | Available any color |
HS Code | 8413503190 |
Application | Construction machinery,Mobile Machinery |
Constant pressure | 350 bar |
Maximum torque | 1448 Nm |
Displacement | 60-260cc |
Applications:
1. Within the mining equipment industry, the Rexroth A11V(L)O pump is recognized for its rugged durability and high-performance capabilities. This axial piston pump is designed to operate in the harshest mining environments, delivering consistent hydraulic power even under extreme pressure and abrasive conditions. Its advanced control system and self-priming function ensure reliable start-up and optimal flow management, which are crucial for the continuous operation of heavy mining machinery. The pump’s compact design and robust construction facilitate easy integration into mining trucks, drilling rigs, and material handling systems. Energy efficiency and precise flow regulation further contribute to reduced operational costs and increased uptime. In addition, its innovative design minimizes maintenance requirements, ensuring long service intervals in challenging mining applications. Overall, this pump plays a vital role in maximizing productivity, safety, and performance in modern mining operations while supporting sustainable resource extraction practices.
2. In the demanding mining industry, the Rexroth A11V(L)O pump sets a benchmark for robust performance and reliability. This hydraulic pump is engineered to withstand extreme operational conditions such as high abrasive wear, shock loads, and fluctuating pressure environments. Its sophisticated control system and self-priming capability ensure smooth startup and consistent operation, making it ideal for heavy mining machinery used in ore extraction and material transport. The pump's energy-efficient design and precise flow adjustment contribute to reduced operational costs and increased uptime. Its compact yet durable construction allows for easy installation in confined spaces typical of mining operations. Additionally, the pump’s advanced features minimize maintenance intervals and extend service life, ensuring uninterrupted operation even in the most challenging settings. With its exceptional reliability and efficiency, this pump is an indispensable component for enhancing mining operations and ensuring continuous performance in challenging conditions.
Competitive Advantage:
1. Rexroth A11V(L)O is engineered for low noise operation by optimizing hydraulic flow paths and reducing internal friction, resulting in a quiet working environment; this innovative hydraulic pump minimizes vibration and noise pollution, thereby enhancing operator comfort and equipment durability while meeting stringent environmental standards in high-demand industrial applications, ensuring a silent yet powerful performance, delivering consistently remarkable operational quietness daily.
2. Rexroth A11V(L)O is designed for easy maintenance with a modular architecture and standardized components that simplify repair work and reduce downtime; this advanced axial piston pump enables quick troubleshooting and routine servicing, thereby providing significant operational cost savings and long-term reliability, while ensuring that maintenance procedures are efficient and minimally disruptive in demanding industrial settings, guaranteeing consistently optimal service performance.
3. Rexroth A11V(L)O boasts a compact design that offers powerful functionality in a small footprint, enabling easy installation in confined spaces; this advanced piston pump maintains high performance and efficiency despite its reduced size, thereby meeting the stringent requirements for compactness and flexibility in modern industrial installations, while delivering exceptional results in space-limited environments, ensuring consistently outstanding performance and operational excellence.
The Analysis For Rexroth A11V(L)O Axial Piston Pump Common Breakdown:
1. Signal transmission issues may stem from wiring faults, electromagnetic interference, or aging connectors, causing delayed or inaccurate control signal delivery that affects hydraulic regulation. It is recommended to inspect wiring, update old connectors, and implement better interference shielding. This piston pump must maintain robust signal integrity to ensure precise control and consistent system performance in demanding applications.
2. System overload is usually caused by operating beyond design limits, incorrect flow adjustments, or incompatible components, resulting in excessive pressure and heat that shorten component life and trigger cascading failures. It is recommended to operate strictly within rated parameters and perform load balancing. This axial piston pump must be used within safe limits to ensure reliable, efficient performance without damage.
3. Component wear is often caused by prolonged heavy-duty operation, inadequate lubrication, or poor oil quality, leading to seal failure and reduced precision that affect system stability. It is advised to perform regular inspections, replace worn parts promptly, and ensure proper lubrication. This hydraulic pump requires diligent maintenance to sustain optimal performance and extend service life under demanding conditions.