Shaoyang Victor Hydraulic Co., Ltd.
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A4VSG 500cc Cast Iron Hydraulic Axial Piston Pump for Tunnel Boring Machine 350bar
Features:
1. Flow is proportional to the drive speed and displacement, and can be continuously adjusted by modifying the swashplate angle.
2. Low noise level makes it suitable for noise-sensitive environments.
3. Nominal pressure of 350 bar, with a maximum pressure of up to 400 bar for selected control devices with port plate 36.
4. Modular design offers various configuration options.
5. Optical swivel angle indicator facilitates monitoring and adjustment.
6. Suitable for variable-speed drives, enhancing system efficiency.
7. High power-to-weight ratio offers higher performance density.
8. Suitable for hydraulic oil media, ensuring compatibility and performance.
9. Adjustable swashplate angle allows flexible flow regulation.
10. Specifications range from 40 to 500, meeting various requirements.
Technical data:
| Size | 40 | 71 | 125 | 180 | 200 | 250 | 355 | 500 | |||
| Displacement | Vg max | mL/r | 40 | 71 | 125 | 180 | 200 | 250 | 355 | 500 | |
| Max. Speed | Vg= Vg max | nnom | r/min | 2600 | 2200 | 1800 | 1800 | 1800 | 1500 | 1500 | 1320 |
| Vg≤Vg max | nmax | r/min | 3200 | 2700 | 2200 | 2100 | 2100 | 1800 | 1700 | 1600 | |
| Flow | at nnom and Vg max | qv | L/min | 104 | 156 | 225 | 324 | 360 | 375 | 533 | 660 |
| n = 1500 r/min | L/min | 60 | 107 | 186 | 270 | 420 | 375 | 533 | 581 | ||
| Power Δp=350 bar | n=nnom | P | kW | 61 | 91 | 131 | 189 | 245 | 219 | 311 | 385 |
| n = 1500 r/min | P | kW | 35 | 62 | 109 | 158 | 210 | 219 | 311 | 339 | |
| Torque Vg= Vg max | Δp=350 bar | Mmax | Nm | 223 | 395 | 696 | 1002 | 1114 | 1391 | 1976 | 2783 |
| Δp=100 bar | M | Nm | 64 | 113 | 199 | 286 | 318 | 398 | 564 | 795 | |
| Inertia moment of the driveshaft | JTW | kgm2 | 0.0049 | 0.0121 | 0.03 | 0.055 | 0.055 | 0.0959 | 0.19 | 0.3325 | |
| Volume of case | V | L | 2 | 2.5 | 5 | 4 | 4 | 10 | 8 | 14 | |
| Weight | m | kg | 39 | 53 | 88 | 102 | 102 | 184 | 207 | 320 | |
| Permissibleload of the drive shaft | Max.axial force | ± Fax max | N | 600 | 800 | 1000 | 1400 | 1400 | 1800 | 2000 | 2000 |
| Max.radial force | Fq max | N | 1000 | 1200 | 1600 | 2000 | 2000 | 2000 | 2200 | 2500 | |
Specifications:
| Warranty | 1 Year |
| Model | SY-A4VSG |
| Place of Origin | China |
| Type | Hydraulic piston pump |
| Color | Available any color |
| Material | Cast iron |
| Application | Tunnel Boring Machine |
| Feature | High Quality |
| Delivery Time | 15 Days after Payment |
| MOQ | 1 Piece |
Applications:
Competitive Advantage:
1. Designed for scalability and adaptability, the A4VSG pump seamlessly integrates into evolving production lines, offering flexible performance adjustments to accommodate changing operational demands; this axial piston pump is engineered to support both small-scale and large-scale applications, ensuring consistent reliability and efficiency as production requirements expand or diversify with proven excellence.
2. Equipped with superior sealing technology, the A4VSG pump effectively prevents fluid leakage and contamination, thereby ensuring optimal system integrity and operational efficiency; this hydraulic pump is engineered with advanced gasket materials and precision sealing designs that significantly reduce maintenance requirements and extend service life in demanding industrial environments with excellence.
3. The A4VSG pump offers enhanced pressure relief capabilities that protect hydraulic systems from overpressure damage by automatically regulating excess fluid, ensuring safe and stable operation; this piston pump is engineered with state-of-the-art relief valves and control mechanisms, providing robust system protection and maintaining optimal performance under variable load conditions consistently.
The Analysis For Rexroth A4VSG Closed Circuit Piston Pump Common Breakdown:
1. An inconsistent output flow rate in the A4VSG piston pump may be caused by wear in internal components, variable load conditions, or defective control valves; such irregularities can impair system efficiency. Regular component inspection, prompt replacement of worn parts, and valve calibration are essential to maintain accurate, stable flow performance.
2. Faulty sensor signals in the A4VSG hydraulic pump may arise from electrical interference, wiring issues, or sensor degradation; inaccurate feedback can lead to improper control responses and system instability. Regular diagnostic tests, proper grounding, and sensor calibration are critical to ensure accurate signal transmission and maintain overall hydraulic system performance.
3. A sticking control valve in the A4VSG piston pump can result from contamination, wear, or inadequate lubrication; this malfunction restricts fluid flow and causes irregular pressure variations. Routine cleaning, proper lubrication, and prompt valve replacement are necessary to restore proper operation, ensuring precise control and consistent performance under heavy load.