Recently, a customer from Bangladesh visited XinLaiFu Hydraulic for the third time to discuss existing equipment maintenance requirements and the procurement plan for a new batch of hydraulic equipment.
This visit focused on the customer's equipment application requirements in local mining, construction and industrial projects. Due to long-term operation in high-temperature, high-humidity and dusty environments, the customer was looking to further improve hydraulic system reliability, operating efficiency and maintenance convenience.
During the technical exchange, both parties conducted detailed discussions on the actual application of the A4VG series hydraulic pumps in the customer's equipment. Based on the equipment's working conditions, load characteristics, continuous operating requirements and site environment, XinLaiFu's engineering team analyzed the pump selection, pressure matching, control options and system compatibility, and provided optimization recommendations to improve long-term operating stability under complex working conditions.
During the factory visit, the customer gained a detailed understanding of XinLaiFu's A4VG series axial piston variable pump manufacturing process and performance characteristics. Through on-site inspection of key component machining, assembly, testing procedures and quality control processes, the customer highly recognized XinLaiFu's manufacturing standards and quality management system.

Technical Team Provides Solution
To meet the customer's requirements for long-term equipment operation, XinLaiFu's engineering team conducted a targeted technical analysis based on the actual application of the A4VG series products:
- Efficient and stable displacement control design to meet the requirements of continuous heavy-duty operation;
- Excellent high-temperature performance and sealing reliability for harsh operating environments;
- Precise flow and pressure control capability to improve equipment operating efficiency;
- Mature maintenance solutions and spare parts support system to reduce long-term operating costs.
Based on the customer's existing equipment conditions, XinLaiFu developed a customized after-sales support plan, including optimization suggestions for wear component replacement, hydraulic system maintenance and spare parts preparation, helping reduce potential maintenance challenges during long-term equipment operation.
Through further communication, the customer gained a deeper understanding of XinLaiFu's capabilities in hydraulic product development, manufacturing and service support. Both parties reached a preliminary cooperation intention regarding A4VG series hydraulic pump solutions.

Building Long-Term Cooperation Through Technical Exchange
This technical exchange not only strengthened the cooperation between both parties but also demonstrated the application value of high-performance hydraulic products in complex operating environments.
As an important solution for closed-loop hydraulic systems, the A4VG series axial piston variable pump features stable performance, high power density and flexible control options. It is widely used in mining equipment, construction machinery, agricultural machinery and industrial vehicles.
Are you looking for an A4VG hydraulic pump solution for mining, construction or industrial equipment?
XinLaiFu provides professional model selection support, technical consultation and customized hydraulic solutions based on different application requirements.
A4VG Series Axial Piston Variable Pump Technical Specifications
|
Item |
Technical Specifications |
|
Product Type |
Axial Piston Variable Pump |
|
Series |
A4VG Series |
|
Displacement Range |
28–250 cm³/rev (depending on model) |
|
Control Options |
HD hydraulic control, HW manual control, EP electric proportional control, DA automatic control (depending on model configuration) |
|
Nominal Pressure |
400 bar |
|
Maximum Pressure |
450 bar |
|
Rated Speed |
1500–2500 rpm (depending on displacement) |
|
Operating Temperature Range |
-25°C to +80°C (depending on hydraulic oil and seal configuration) |
|
Hydraulic Fluid Requirement |
Mineral oil (according to DIN 51524 standard) |
|
Application Areas |
Mining machinery, construction equipment, agricultural machinery, industrial vehicles, etc. |




