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Rexroth Piston Pump High-Efficiency Hydraulic System Component Specs & Materials
Features:
1. Variable axial piston pump of swashplate design for hydrostatic drives in open circuit hydraulic system.
2. Designed primarily for use in mobile applications.
3. The pump operates under self-priming conditions, with tank pressurization. Or with an optional built-in charge pump (impeller),can effectively improve self-suction performance of the pump.
4. A comprehensive range of control options is available matching any application requirement.
5. Power control option is externally adjustable, even when the pump is running.
6. The through drive is suitable for adding gear pumps and axial piston pumps up to the same, i.e. 100% through drive.
7. The output flow is proportional to the drive speed and infinitely variable between qV max and qV min = 0.
8. Compact design.
9. High efficiency.
10. High power density.
11. Low noise level.
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 | 12 months |
Transport Package | Standard Export Wooden Case |
Material | Cast Iron |
Type | Construction machinery piston pump |
Production Capacity | 1000-3000 pcs/month |
HS Code | 8413503190 |
Application | Mobile Crane,Hard Rock Roadheader,Rotary Drilling Rig,Crawler Crane |
Maximum speed | 2780rpm |
Delivery Time | 15-30 Days after Payment |
Displacement | A11V(L)O 95/115/130/145/165/190/260 |
Applications:
1. In concrete pump truck applications, the Rexroth A11VLO series demonstrates exceptional flow control and precise regulation, ensuring consistent concrete delivery under high-pressure and high-temperature conditions. This piston pump features advanced self-priming technology and robust protection systems that significantly enhance operational safety and efficiency. Operators can easily maintain continuous operations, optimizing concrete pouring performance while reducing downtime, with reliability.
2. In another concrete pump truck application, the Rexroth A11V(L)O series offers outstanding regulation and durability, ensuring stable concrete delivery even under severe vibration and fluctuating loads. This axial piston pump utilizes innovative design and advanced control features to minimize energy consumption and maintenance needs while providing seamless operation on busy construction sites. Its robust performance and precise flow control significantly improve job safety and project efficiency, making it a top choice for modern large-scale construction projects.
3. In loader machinery applications, the Rexroth A11V(L)O series delivers superior performance by providing consistent flow regulation and reliable power output. This hydraulic pump is engineered to maintain smooth operation under varying load conditions, ensuring that the hydraulic system remains stable during frequent start-stop cycles. With advanced self-priming and energy-saving features, it minimizes maintenance efforts while extending equipment lifespan, ensuring outstanding operational reliability and maximum continuous superior performance output.
Competitive Advantage:
1. The Rexroth A11V(L)O axial piston pump offers exceptional performance with advanced self-priming technology, variable displacement control, and precise flow regulation that ensures optimum energy efficiency and reliability in diverse mobile and industrial applications, thereby reducing downtime and maintenance costs while delivering consistent high-pressure hydraulic power for superior productivity and operational safety, and significantly enhancing global market competitiveness in every project.
2. The Rexroth A11V(L)O hydraulic pump integrates cutting-edge manufacturing technology with robust design, delivering high efficiency, precise control, and outstanding durability across diverse mobile and industrial applications, which significantly minimizes downtime and energy loss while ensuring optimal performance under extreme operating conditions, ultimately enhancing system reliability and overall productivity in competitive global markets and driving industry-leading performance worldwide with unmatched quality in every project.
3. The Rexroth A11V(L)O axial piston pump delivers remarkable energy efficiency and superior performance through innovative variable displacement technology, offering seamless integration into diverse industrial and mobile systems while ensuring rapid response, precise control, and low noise operation, which ultimately reduces operational costs and enhances safety, productivity, and overall system reliability for cutting-edge engineering projects, driving unmatched global industrial success
The Analysis For Rexroth A11V(L)O Axial Piston Pump Common Breakdown:
1. In practical operations, low flow issues may be caused by clogged internal channels, improper valve adjustments, high hydraulic oil viscosity, and worn sealing components. This fault results in delayed system response and insufficient pressure, significantly impacting efficiency and performance. It is recommended to clean the oil circuit thoroughly, replace aging parts, and recalibrate control parameters. This axial piston pump must be maintained properly.
2. When experiencing pressure instability, possible causes include worn valves, internal leakage, or malfunctioning adjustment mechanisms. These fluctuations lead to control failure and reduced performance. It is advised to inspect, clean, or replace the affected components and recalibrate the control system. This hydraulic pump must operate within a stable pressure range to guarantee reliable performance.
3. Excessive noise can result from mechanical wear, abnormal vibrations, or poor-quality hydraulic oil, adversely affecting the work environment and equipment lifespan. High noise levels typically indicate increased internal friction or component imbalance. It is recommended to inspect the pump housing, bearings, and oil quality and perform timely maintenance. This piston pump requires careful monitoring to ensure quiet operation.