Shaoyang Victor Hydraulic Co., Ltd.
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180 cc/rev Displacement Harvesting Machinery Piston Pump High-Torque Road Roller
Features:
1. Modular design for serviceability.
2. Visual/electronic contamination indicators.
3. Cold start valve configuration.
4. Servo chamber pressure monitoring interface.
5. Pre-installed boost fluid filters.
6. Multi-position installation flexibility.
7. Low noise operation characteristics.
8. Extended service life design.
9. Fast response regulating system.
10. Through-shaft drive compatibility.
Technical data:
| Size | NG | 56 | 71 | 90 | 125 | 180 | ||
| Geometric displacement, per revolution | variable pump | Vg max | cm3 | 56 | 71 | 90 | 125 | 180 |
| boost pump (at Δp = 20 bar) | Vg Sp | cm3 | 11.6 | 19.6 | 19.6 | 28.3 | 39.8 | |
| Rotational speed | maximum at Vg max | nnom | rpm | 3600 | 3300 | 3050 | 2850 | 2500 |
| limited maximum | nmax1 | rpm | 3900 | 3600 | 3300 | 3250 | 2900 | |
| intermittent maximum | nmax2 | rpm | 4500 | 4100 | 3800 | 3450 | 3000 | |
| minimum | nmin | rpm | 500 | 500 | 500 | 500 | 500 | |
| Flow | at nnom and Vg max | qv | l/min | 202 | 234 | 275 | 356 | 450 |
| Power at nnom, Vg max | Δp = 400 bar | P | kW | 134 | 156 | 183 | 238 | 300 |
| Torque with Vg max | Δp = 400 bar | M | Nm | 357 | 452 | 573 | 796 | 1146 |
| Δp = 100 bar | M | Nm | 89 | 113 | 143 | 199 | 286 | |
| Rotary stiffness of drive shaft | S | c | kNm/rad | 80.8 | 98.8 | 158.1 | 218.3 | 244.5 |
| T | c | kNm/rad | 95 | 120.9 | – | 252.1 | 318.4 | |
| A | c | kNm/rad | 95.8 | 142.4 | 176.8 | 256.5 | – | |
| Z | c | kNm/rad | 78.8 | 122.8 | 137 | 223.7 | 319.6 | |
| U | c | kNm/rad | – | – | 107.6 | – | – | |
| Moment of inertia of the rotary group | JTW | kgm2 | 0.0066 | 0.0097 | 0.0149 | 0.0232 | 0.0444 | |
| Maximum angular acceleration | α | rad/s² | 24000 | 21000 | 18000 | 14000 | 11000 | |
| Case volume | V | l | 1.5 | 1.3 | 1.5 | 2.1 | 3.1 | |
| Weight (without through drive) approx. | m | kg | 38 | 50 | 60 | 80 | 101 | |
Specifications:
| Warranty | 1 Year |
| Model | SY-A4VG |
| Place of Origin | China |
| Type | Costruction machinery piston pump |
| Color | Available any color |
| HS Code | 8413503190 |
| Application | excavator, road rollers, pavers |
| Feature | High Quality |
| Delivery Time | 15-30 Days after Payment |
| MOQ | 1 Piece |
Applications:
Competitive Advantage:
1. The A4VG series stands out with its innovative design and robust construction, delivering precise control, rapid response, and consistent energy efficiency, while integrated safety features protect against overloads, making it a top-performing axial piston pump that excels in both industrial automation and demanding mobile applications every single day for excellence.
2. Combining robust mechanical design with state-of-the-art variable displacement technology, the A4VG series delivers exceptional performance, precise fluid control, and high energy efficiency, making it a reliable piston pump solution that meets the rigorous demands of modern industrial, mobile, and automated systems around the globe every single day for peak performance.
3. Engineered with cutting-edge technology and precise engineering, the A4VG series offers seamless variable flow adjustment, integrated safety features, and exceptional energy management, ensuring reliable operation and reduced maintenance costs as a highly efficient axial piston pump, making it the preferred choice for demanding industrial and mobile applications worldwide every day.
4. The A4VG series integrates innovative boost pump technology, variable swashplate control, and dual pressure relief systems, providing enhanced system safety, precise fluid dynamics, and optimal energy conversion, making it a versatile hydraulic pump that outperforms competitors in efficiency, reliability, and overall performance across various industrial and mobile applications every day.
The Analysis For Rexroth A4VG Closed Circuit Piston Pump Common Breakdown :
1. In this hydraulic pump, inaccurate pressure regulation caused by sensor errors or faulty transducer calibration can lead to improper system response, energy inefficiencies, and potential damage to the hydraulic circuit, thereby requiring thorough sensor diagnostics, recalibration, and replacement of defective sensors to ensure accurate pressure control and system stability immediately.
2. In this piston pump system, failure in integrating the control devices with the pump mechanism can result in loss of precise modulation of flow and pressure, causing erratic performance, increased wear, and inefficient operation, which requires comprehensive system checks, software updates, and improved integration practices to restore optimal functionality promptly.
3. In this axial piston pump, operation under extreme ambient temperatures can cause instability due to material expansion, fluid viscosity changes, and potential sensor inaccuracies, resulting in fluctuating performance, increased wear, and potential system shutdown, which necessitates thermal management enhancements, accurate temperature compensation, and robust design modifications for reliable operation consistently.