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Rexroth Piston Pump Cast Iron Construction 300 Bar for Construction Machinery
Features:
1. Volumetric efficiency up to 96% @250 bar.
2. 15-20% higher power density than industry peers.
3. Noise level ≤75 dB(A) @1500 rpm.
4. Bimetallic cylinder block with bronze slippers.
5. Pressure compensator control (optional remote adjustment).
6. Load-sensing control (LUDV system compatible).
7. Maximum working pressure 350 bar (intermittent).
8. Speed range 800-3000 rpm (continuous operation).
9. Tapered piston design reduces lateral forces.
10. Intelligent cross-port pressure relief protection
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. The Rexroth A11V(L)O pump delivers exceptional performance in large-scale construction machinery by providing reliable, efficient, and high-pressure hydraulic power. Its innovative design integrates advanced control options with robust self-priming capabilities, ensuring seamless operation even under extreme load conditions. The incorporated hydraulic pump technology optimizes energy consumption and offers precise flow regulation, contributing to improved overall productivity and safety on construction sites. Additionally, the compact structure and high power density enable easy integration into diverse construction equipment such as cranes, excavators, and concrete mixers. The pump’s ability to adjust output flow in real-time ensures optimal performance across varying workloads, making it a critical component in heavy-duty construction environments. With advanced manufacturing techniques, the pump guarantees long-term durability and consistent performance, earning its place as a preferred choice in the construction machinery industry for high-demand applications. This exemplary performance reinforces its reputation as a market leader in delivering sustainable and efficient hydraulic solutions in the construction sector.
2. In the realm of construction machinery, the Rexroth A11V(L)O pump is renowned for its outstanding reliability and high efficiency. Engineered with cutting-edge technology, this axial piston pump features self-priming and real-time flow adjustment capabilities, ensuring stable performance even under heavy loads and frequent start-stop cycles on busy construction sites. Its precision design plays a vital role in various applications including lifting, excavation, and concrete pouring. The pump’s compact yet robust build facilitates easy installation and significantly enhances overall energy efficiency and operational safety. An intelligent control system embedded within the pump automatically adjusts to varying field conditions, substantially reducing maintenance intervals and operational costs. With its exceptional engineering performance and durability, this pump has become the preferred choice for many construction equipment manufacturers. Its innovative design and superior functionality continue to drive the construction industry towards more efficient and eco-friendly practices.
Competitive Advantage:
1. The Rexroth A11V(L)O piston pump is engineered with an innovative self-priming mechanism, advanced control options, and a compact design that ensures high power density, superior energy efficiency, and low noise operation, making it ideal for a wide range of mobile and industrial applications while delivering reliable performance and outstanding durability under challenging conditions, ensuring maximum uptime and global excellence consistently.
2. The Rexroth A11V(L)O axial piston pump combines innovative design with superior performance by offering variable flow control, integrated self-priming, and energy-efficient operation, which ensures exceptional reliability in both mobile and industrial applications, reduces operational expenses through precise regulation, and delivers consistent high-pressure output that meets the most demanding engineering requirements worldwide while achieving unparalleled efficiency and market leadership absolutely outstanding.
3. The Rexroth A11V(L)O hydraulic pump is distinguished by its state-of-the-art self-priming feature, variable displacement capability, and robust construction, which enable seamless integration into a wide variety of mobile and industrial applications while delivering superior performance, reducing maintenance intervals, and ensuring high operational efficiency and safety for complex engineering projects around the world, boosting productivity and global competitive advantage remarkably innovative.
The Analysis For Rexroth A11V(L)O Axial Piston Pump Common Breakdown:
1. The Rexroth A11V(L)O hydraulic pump may produce excessive noise when cavitation occurs or misalignment happens in the pump assembly, indicating potential internal damage; inspection of cavitation conditions, realignment of components, and prompt corrective maintenance are crucial to prevent damage and ensure quiet, efficient, and reliable pump operation under varying workloads.
2. The Rexroth A11V(L)O axial piston pump may experience excessive vibration caused by imbalanced rotating components or loose mounting fixtures, which can lead to accelerated wear and potential damage to internal parts; regular vibration analysis, proper balancing, and secure mounting are essential to maintain operational stability and prolong pump service life.
3. The Rexroth A11V(L)O hydraulic pump may encounter seal failure due to material fatigue or improper installation, resulting in fluid contamination and reduced system performance; immediate inspection, cleaning, and replacement of faulty seals are required to prevent further contamination and maintain optimal hydraulic performance promptly.