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A4VG125 Construction Machinery Piston Pump 2850 RPM Cast Iron for  Marine Hydraulic

A4VG125 Construction Machinery Piston Pump 2850 RPM Cast Iron for  Marine Hydraulic

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
Detail Information
Place of Origin:
China
Certification:
China Classification Society Certification
Pressure:
High Pressure
Fuel:
Hydraulic Oil
Theory:
Rotary Pump,hydraulic Pumps
Standard Or Nonstandard:
Standard
Packaging Details:
Standard Export Wooden Case
Supply Ability:
500 pcs per month
Highlight:

A4VG125 marine hydraulic piston pump

,

cast iron construction piston pump

,

2850 RPM hydraulic pump marine

Product Description

A4VG125 Construction Machinery Piston Pump 2850 RPM Cast Iron for  Marine Hydraulic



Features:


1. Integrated temperature monitoring system ensures real-time equipment safety

2. Optional digital interface enables smart monitoring and remote diagnostics

3. High-efficiency oil circuit design minimizes pressure losses and optimizes energy efficiency

4. Corrosion-resistant surface treatment makes it suitable for harsh operating environments

5. Rapid pressure adjustment response guarantees stable hydraulic output

6. Automatic oil replenishment function extends continuous operating time

7. Flexible mounting options accommodate various installation scenarios and operating conditions

8. Consistent performance maintained under high pressure, temperature, and load conditions

9. Optimized internal design minimizes energy losses, enhancing overall system efficiency

10. Rigorously tested and certified to meet international hydraulic system standards



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:


1. Engineered for heavy transport and crane systems, the A4VG series axial piston pump delivers hydraulic performance and fluid control for demanding lifting operations. Its variable displacement technology adjusts output instantly to meet fluctuating load requirements, ensuring smooth hoisting and movement. Integrated boost features and dual relief valves provide superior safety and protection against overload. This advanced pump solution enhances operational efficiency, reduces maintenance intervals, and supports rigorous performance standards, making it an optimal choice for modern heavy-duty transport and crane machinery.

2. Optimized for concrete mixer systems, the A4VG series hydraulic pump delivers fluid power and precise pressure control required for mixing and transport of concrete. Its variable displacement design ensures consistent output despite varying load conditions during mixing cycles. Integrated boost features and dual relief valves protect the system from pressure surges, enhancing safety and durability. This pump solution improves mixing consistency and operational efficiency while reducing energy consumption and downtime, making it an essential component in concrete mixer hydraulic systems.

3. Engineered for concrete mixing applications, the A4VG series piston pump delivers reliable fluid power and precise pressure regulation to support concrete blending and transport. Its variable displacement mechanism adapts to load variations during mixing cycles, ensuring consistent performance and reduced wear. Integrated boost features and dual relief valves offer enhanced safety and protection against pressure spikes. This hydraulic solution optimizes concrete mixer operations, minimizes downtime, and improves overall efficiency, making it a preferred choice for demanding concrete mixer hydraulic systems.


A4VG125 Construction Machinery Piston Pump 2850 RPM Cast Iron for  Marine Hydraulic 0



Competitive Advantage:


1. Combining exceptional dynamic response with high-pressure protection features, the A4VG series maintains smooth fluid direction changes and continuous flow regulation under varying loads, ensuring optimal system safety and performance in both industrial and mobile environments as a reliable piston pump designed to meet the stringent operational demands and efficiency criteria.


2. Leveraging its compact and modular design, the A4VG series simplifies system integration and installation in confined spaces, while offering exceptional fluid control and energy efficiency as a versatile axial piston pump, ensuring rapid deployment, minimal downtime, and high operational reliability in diverse industrial and mobile hydraulic applications every single day.


3. Designed to operate reliably under extreme temperatures and load fluctuations, the A4VG series features advanced thermal management and precise pressure regulation, ensuring optimal performance and energy efficiency as a dependable hydraulic pump, making it an ideal solution for applications in harsh industrial environments and mobile systems requiring high-quality fluid power.


4. Featuring robust construction and high-strength materials, the A4VG series delivers excellent durability and resistance to wear and tear, ensuring reliable performance and reduced maintenance requirements, making it a cost-effective and high-efficiency hydraulic pump for continuous use in demanding industrial, mobile, and automated applications worldwide, delivering outstanding performance every single day.



The Analysis For Rexroth A4VG Closed Circuit Piston Pump Common Breakdown :


1. In this axial piston pump system, blockage or contamination within the integrated boost pump can hinder proper feed pressure generation, leading to insufficient control pressure, erratic system behavior, and reduced overall performance, which necessitates immediate cleaning, fluid replacement, and thorough inspection of the boost pump assembly to restore functionality promptly.


2. In this hydraulic pump, misalignment of the swashplate can cause uneven force distribution, increased mechanical stress, accelerated wear on pistons and bearings, and reduced control accuracy, thereby necessitating precise realignment, regular calibration, and mechanical adjustments to restore balance and ensure smooth, efficient operation of the pump system without further delay.


3. In this piston pump, simultaneous failure of the dual pressure relief valves under overload conditions can result in uncontrolled pressure surges, jeopardizing system safety, damaging critical components, and causing operational interruptions, which necessitates immediate inspection, testing, and replacement of the relief valves to restore proper overload protection without any delay.