A4VG175 Hydraulic Variable Displacement Pump For Engineering Machinery And Heavy Duty Vehicles
A4VG175 is an axial piston variable displacement pump with a 175 cm³/rev capacity, designed for closed-loop hydrostatic transmission systems, operating at a rated pressure of around 350 bar with peak pressure up to 400 bar.
It provides precise and stepless flow control with fast dynamic response, ensuring stable and efficient hydraulic performance under variable and heavy-load working conditions.
With a reinforced swashplate design and high-strength bearing structure, it delivers excellent durability, impact resistance, and long service life for construction, mining, and mobile machinery applications.
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Description
Technical Parameters
A4VG175 Axial Piston Variable Pump
Closed-loop hydrostatic pump for heavy-duty mobile machinery systems
A4VG175 is a 175 cm³/rev axial piston variable displacement pump designed for closed-loop hydrostatic drive systems. It operates at a rated pressure of around 350 bar, with peak pressure capability up to 400 bar.
The pump delivers stepless flow control and fast response under variable load conditions. In real operation, it is often evaluated based on stability during frequent direction changes rather than static performance values.
Application Fields & Equipment Compatibility
A4VG175 is widely applied in construction machinery such as excavators (20–40 ton class), where hydraulic systems require stable power delivery during digging, lifting, and swing operations.
In mining trucks and underground equipment, it is commonly used in travel drive systems, where continuous load variation and shock conditions are frequent.
It is also found in drilling rigs and rotary equipment, where precise control and pressure stability are required under long-duty operation cycles.
In wheel loaders and heavy-duty material handling machines, the pump supports rapid hydraulic response during repetitive loading and unloading cycles.
Core Advantages
• Stable performance under high load fluctuation
• Efficient variable displacement control
• Strong resistance to shock and vibration
• Suitable for harsh working environments with long duty cycles
FAQ
What type of machinery uses A4VG175?
It is commonly used in excavators, mining trucks, drilling rigs, and other heavy mobile hydraulic equipment.
What is the pressure rating of this pump?
The rated pressure is approximately 350 bar, with peak pressure up to 400 bar depending on system configuration.
Why is it used in mining equipment?
Because it maintains stable hydraulic output under continuous load, vibration, and high-temperature working conditions.
What is the main performance benefit?
Its main benefit is stable variable flow control with high efficiency under dynamic and heavy-duty conditions.
A4VG175 – Reliable hydraulic performance for demanding mobile applications
