Baile Hydraulic Rexroth A7VO28 Axial Piston Pump

A7VO28DR Pressure compensator control pump
A7VO28DRG Pressure compensator + remote control
A7VO28DRS Pressure compensator + servo control
A7VO28DRM Pressure compensator with modified control
A7VO28EP Electric proportional control
A7VO28EPG Electric proportional + remote control
A7VO28HD Hydraulic control
A7VO28LRD Power regulator control
A7VO28LRG Power regulator + remote control
A7VO28LRDG Power regulator with additional control

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Application Range

Construction Machinery

The A7VO28 is widely used in mobile hydraulic equipment.

Typical applications:

Mini Excavators

Functions:

  • Boom operation
  • Arm movement
  • Bucket control
  • Auxiliary attachments

Advantages:

  • Smooth flow control
  • Fast response
  • High reliability

Compact Wheel Loaders

Applications:

  • Hydraulic lifting
  • Steering systems
  • Attachment operation

Drilling Equipment

Used for:

  • Rotary drives
  • Feed systems
  • Auxiliary hydraulic functions

Agricultural Machinery

A7VO28 pumps are suitable for:

Tractors

Applications:

  • Hydraulic implements
  • Front loader systems
  • Steering circuits

Harvesting Equipment

Used for:

  • Hydraulic adjustment systems
  • Auxiliary drives

Advantages:

  • High efficiency
  • Stable operation under changing loads

Industrial Hydraulic Systems

Applications include:

  • Hydraulic power units
  • Test equipment
  • Special machines
  • Mobile industrial vehicles

The compact size makes it suitable for systems requiring reliable variable flow control.

 

Main Technical Specifications

Parameter A7VO28
Product Type Variable displacement axial piston pump
Design Bent-axis design
Series A7VO Series 63
Displacement 28 cm³/rev
Circuit Type Open circuit
Nominal Pressure 350 bar
Maximum Pressure 400 bar
Rotation Direction Clockwise / Counter-clockwise versions available
Control Type Pressure control, hydraulic control options
Mounting ISO mounting flange
Drive Shaft Parallel keyed shaft options
Installation Mobile and industrial hydraulic systems
Weight Approx. 18 kg

4. Performance Data

4.1 Displacement

The geometric displacement:

Vg = 28 cm³/rev

This means the pump theoretically delivers:

At 2000 rpm:

Q=28×20001000Q=\frac{28 \times 2000}{1000}

≈ 56 L/min

Considering volumetric efficiency:

Actual flow is approximately:

50–55 L/min

Typical Models:

Part Number Model
R902006907 A7VO28DR/61L-NPB01
R902011753 A7VO28DR/63R-NPB01
R902223292 A7VO28DR/63R-NPB01
R902247001 A7VO28DR/63R-VPB01
R902009985 A7VO28DR/63R-NZB01

A: We are factory and trading company.

A: Generally it is 3-5 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is according to quantity.

A: We can provide samples, but not for free.

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

If you have more questions, pls feel free to contact us as below:

sales@bailehydraulic.com

WeChat/WhatsApp：0086 18060096097

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