Brand Name: | SY Hydraulic |
Model Number: | SY-A4VG |
MOQ: | 1pc |
Price: | USD 2000-6000 / pc |
Payment Terms: | T/T |
Supply Ability: | 500 pcs per month |
A4VG180 Construction Machinery Piston Pump 2500 RPM For Agricultural Machinery
Features:
1. Flow proportional to drive speed and displacement
2. Infinitely variable flow via swashplate angle adjustment
3. Smooth flow reversal through neutral position crossover
4. Dual pressure relief valves on high-pressure side
5. Integrated boost pump for charge supply
6. Built-in low pressure relief valve for boost limitation
7. Standard pressure cut-off function
8. Multi-functional control block integration
9. Hydrostatic transmission overload protection
10. Relief valves with boost valve functionality
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 |
A4VG series |
Place of Origin |
China |
Type |
Harvesting machinery piston pump |
Color |
Available any color |
Type |
Hydraulic pump Rexroth |
Application |
Mining equipment |
Feature |
High Efficiency,Long Life |
Delivery Time |
15-30 Days after Payment |
Condition |
Brand new |
Applications:
Competitive Advantage:
1. The A4VG series offers unmatched efficiency and reliability in high-pressure closed-circuit hydraulic drives, combining variable displacement design with integrated boost features, dual relief valves, and advanced mechanical sealing to ensure optimal energy utilization, durability, and performance in demanding industrial and mobile applications as a high-quality axial piston pump every day.
2. Featuring variable displacement technology and high dynamic response, the A4VG series ensures consistent hydraulic power output even under rapid load changes, providing reliable energy conversion, minimal energy losses, and long service life while delivering precise control and performance as a dependable piston pump for modern automated and mobile systems remarkably.
3. With its integrated boost pump and dual pressure relief valves, the A4VG series offers advanced safety and protection features, ensuring the hydraulic system remains secure and reliable during overload conditions, sudden load spikes, and extreme operating environments as a robust hydraulic pump in complex operating environments.
4. Incorporating advanced manufacturing processes and high-precision components, the A4VG series achieves superior internal alignment and fluid dynamics, resulting in minimal energy losses, enhanced efficiency, and extended service life as a cutting-edge axial piston pump ideal for high-demand industrial, mobile, and automated systems requiring consistent and reliable hydraulic performance every day.
The Analysis For Rexroth A4VG Closed Circuit Piston Pump Common Breakdown :
1. In this axial piston pump system, a faulty electronic control unit or software malfunction can result in delayed response times, improper flow adjustments, and erratic system behavior, leading to reduced operational efficiency and increased wear, which necessitates prompt diagnostics, firmware updates, and possible hardware replacement to restore timely control immediately.
2. In this hydraulic pump, operating under low fluid conditions can induce cavitation, where vapor bubbles form and collapse violently, causing physical damage to internal surfaces, reduced efficiency, and noise, thereby requiring prompt fluid level maintenance, proper system priming, and continuous monitoring to prevent cavitation-induced deterioration for long-term reliability and efficiency.
3. In this piston pump, the entrainment of air within the hydraulic fluid can lead to inconsistent fluid dynamics, erratic pressure fluctuations, and reduced system responsiveness, ultimately compromising performance and causing potential damage, which necessitates effective deaeration procedures, regular fluid replacement, and system inspections to eliminate air bubbles and restore stability.