A4VG  A4VG75 Series Axial Piston Variable Pump OVERVIEW

Features and Benefits

• Ultra-high Pressure Durability

  Rated continuous pressure reaches 400 bar, peak pressure hits 450 bar, suitable for long-term heavy-load traction conditions. Precision ground pistons and valve plates effectively reduce internal leakage and extend service life.

• Rich Control Options

  Multiple control modes are optional: EP electric proportional, HD hydraulic pilot, HW mechanical servo, DA speed-related control and DG direct hydraulic control. The pump supports fast response for automated travel equipment. A through-drive end flange allows tandem installation of additional pumpsBosch Rexroth.

• High Integration & Stable Performance

  The built-in charge pump supplies makeup oil and pilot control oil; dual high-pressure relief valves prevent overload for the whole drive system. Fewer separate components lower leakage points and simplify pipeline layout. Volumetric efficiency stays above 93% under rated working conditions.

• Smooth Bidirectional Operation

  Flow direction switches steadily without hydraulic shock. Optional loop flushing keeps oil temperature low and maintains oil cleanliness, ideal for continuous running of mixer trucks and farm machinery

Specifications A4VG A4VG75 Series Axial Piston Variable Pump

• Model: A4VG75 Axial Piston Variable Pump

  Displacement: 75 cm³/rev

  Rated Continuous Pressure: 400 bar (5800 PSI)

  Maximum Peak Pressure: 450 bar (6525 PSI)

  Operating Speed Range: 600 ~ 2600 rpm

  Rotation Direction: Clockwise / Counterclockwise optional

  Control Modes: EP, HD, HW, DA, DG

  Built-in Components: Charge pump, high-pressure relief valve, pressure cut-off valve

  Shaft Type: Splined shaft

  Mounting Standard: SAE flange

  Through-drive: Available for tandem pump installation

  Volumetric Efficiency: ≥93%

  System Type: Closed-circuit hydrostatic drive

Applications

Packaging & Delivery

A4VG75 Series Axial Piston Variable Pump are typically packaged securely to prevent damage during transit. The packaging includes:

Protective Wrapping: To safeguard the pump from environmental damage.

Custom Crates: For larger, heavier pumps, ensuring safe handling.

Documentation: Includes installation, maintenance instructions, and warranty details.

Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.

A4VG75 Series Axial Piston Variable Pump FAQ:

1. What is the A4VG75 Series Axial Piston Variable Pump ?

• It adopts a heavy-duty swashplate structure exclusively for closed-loop hydrostatic transmission.It has an integrated charge pump and built-in pressure protection valves, working steadily under 400 bar rated pressure.Multiple control options are available, with high volumetric efficiency and low internal leakage.It is fully interchangeable with Rexroth original pumps and fits heavy mobile machinery perfectly.
  
  

3. What is the working pressure range of A4VG75 Series Axial Piston Variable Pump ?

• Rated continuous working pressure is 400 bar (5800 PSI).
  
  Short-term peak pressure reaches 450 bar (6525 PSI).
  
  

      Charge pressure of the built-in auxiliary pump is 20–28 bar.


4. Can A4VG75 Series Axial Piston Variable Pump replace other brands?

      Yes. Our A4VG75 pump is fully interchangeable with the original Rexroth A4VG75 pump.No mechanical modification is needed during installation.
      The mounting flange, splined shaft, port layout and overall dimensions are exactly the same.
      We can match different control versions and supply complete overhaul spare parts.

• We recommend mineral-based anti-wear hydraulic oil meeting DIN 51524-3 HLP standard.

• ISO VG 46 for year-round normal operation

• ISO VG 32 for cold climate regions

• ISO VG 68 for high-temperature continuous work

• The optimal working viscosity is 16~36 mm²/s.

  Keep oil cleanliness at ISO 4406 20/18/15 to protect piston and valve plate components.

  Fire-resistant hydraulic fluids are not allowed for this closed-circuit pump.

6. What is the typical speed range of A4VG75 Series Axial Piston Variable Pump ?

• A4VG75 normal continuous working speed is 600 ~ 2600 rpm for heavy-duty long-term operation

• The minimum stable speed is 500 rpm.

• The maximum intermittent speed can reach 3300 rpm under light load.

7. Do you provide OEM or customized services?

     Yes, we offer professional OEM and ODM customized services.
     We can print your brand logo, part numbers and customize outer packaging.
     We can also adjust control modes, shaft splines and port positions according to your system requirements.
     Our technical team can modify the structure to match different engineering machinery.

Please provide the following details:

• Model or displacement

• Working pressure

• Speed

• Quantity
  We will reply within 12 hours with a competitive quotation.

  
  

Certifications & Quality Assurance

A4VG75 Series Axial Piston Variable Pump are manufactured in compliance with international standards, ensuring high performance and reliability:

ISO 9001: Certified for quality management systems.

CE Certification: Ensures compliance with European safety, health, and environmental protection standards.

RoHS Compliance: Ensures the pump does not contain hazardous materials.

Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.

FAQ

1.What's our advantages?

Factory established in 2005;

With a great deal of production experience;

80+ employees become the professional team;

Constant updated ERP system ensure efficiency of work;

Sophisticated equipment ehanced the accuracy of products;

Professional salesmen provide the greast service;

With a large number of famous customers all over the world;

Great after-sales service;

With the long term cooperation with famous logistics and express company in China,provide the better goods service.

2.What is your payment terms?

Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.

3.Can you make my own brand on the products?

Of course we can. Just send me your logo  we can make it for you.

4.What is our main export market?

America(40.5%):USA, Canada, Argentina, Brazil

Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.

Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.

Others(5.8%).

The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.

The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.